Publications

Journal Articles

[J36] Lagares C. and Araya G. Aquila-LCS: GPU/CPU-accelerated particle advection schemes for large-scale simulations. SoftwareX, 27, 101836 2024. https://doi.org/10.1016/j.softx.2024.101836
[J35] Araya, G. Unsteady Subsonic/Supersonic Flow Simulations in 3D Unstructured Grids over an Acoustic Cavity. Fluids 2024, 9(4):92. https://doi.org/10.3390/fluids9040092
[J34] Ranjan R., Catabriga L. and Araya, G. A Spectral/hp-Based Stabilized Solver with Emphasis on the Euler Equations. Fluids 2024, 9(1):18. https://doi.org/10.3390/fluids9010018
[J33] Lagares C. and Araya G. A GPU-Accelerated Particle Advection Methodology for 3D Lagrangian Coherent Structures in High-Speed Turbulent Boundary Layers. Energies, 16(12), 4800 2023. https://doi.org/10.3390/en16124800
[J32] Paeres D., Lagares C., Craig A.B., Araya G. Visualization of Turbulent Events via Virtual/Augmented Reality. Journal of Flow Visualization & Image Processing, 30(2):1–22, 2023. DOI: 10.1615/JFlowVisImageProc.2023047640
[J31] Paeres D., Lagares C., Araya G. Assessment of Turbulence Models over a Curved Hill Flow with Passive Scalar Transport. Energies. 2022; 15(16):6013. https://doi.org/10.3390/en15166013
[J30] Quiñones C. and Araya G., Jet in accelerating turbulent crossflow with passive scalar transport. Energies. 2022; 15(12):4296. https://doi.org/10.3390/en15124296
[J29] Araya G. and Lagares C., Implicit subgrid-scale modeling of a Mach-2.5 spatially-developing turbulent boundary layer. Entropy 2022, 24, 555. https://doi.org/10.3390/e24040555
[J28] Lagares C., Rivera W. and Araya G., Scalable Post-Processing of Large-Scale Numerical Simulations of Turbulent Fluid Flows. Symmetry 2022, 14, 823. https://doi.org/10.3390/sym14040823
[J27] Lagares C., Santiago J. and Araya G., Turbulence modeling in hypersonic turbulent boundary layers subject to convex wall curvature. AIAA Journal, DOI: 10.2514/1.J060247 , 2021.
[J26] Rivera E. and Araya G., Transport phenomena in high-speed wall-bounded flows subject to concave surface curvature. J. of Computational Science Education, Vol. 12 Issue 1, pp 16-23, 2020.
[J25] Saltar G. and Araya G., Reynolds shear stress modeling in turbulent boundary layers subject to very strong Favorable Pressure Gradient. Computers and Fluids, 202, 104494, 2020.
[J24] Araya G., Turbulence model assessment in compressible flows around complex geometries with unstructured grids. Fluids, 4, 81, doi:10.3390/fluids4020081, 2019.
[J23] Araya G., Marin G., Cucchietti F., Meta I. and Grima R., Visualization of a jet in turbulent crossflow. Communications in Computer and Information Science, pp. 174–178, 2019.
[J22] Araya G. and Torres G., Structural Reynolds analogy in laminarescent boundary layers via DNS. J. of Visualization, https://doi.org/10.1007/s12650-019-00549-6, 2018.
[J21] Araya G. and Rodriguez D., Visualization and assessment of turbulent coherent structures in laminarescent boundary layers. J. of Visualization, 21, pp 191-202, 2017.
[J20] Liu C., Araya G. and Leonardi S., The role of vorticity in the turbulent/thermal transport of a channel flow with local blowing, in press, Computers and Fluids, 2017.
[J19] Gutierrez W., Araya G., Kiliyanpilakkil V.P., Ruiz-Columbie A., Tutkun M. and Castillo L. Structural impact assessment of Low Level Jets over wind turbines, J. of Renewable and Sustainable Energy, 8, 023308, 2016.
[J18] Dharmarathne S., Tutkun M., Araya G., Castillo L., Structures of scalar transport in a turbulent channel, European Journal of Mechanics B-Fluids, Vol. 55, Part 2, pp 259-271, 2016.
[J17] Doosttalab A., Araya G., Newman J., Adrian R., Jansen K., Castillo L., Effect of small roughness elements on thermal statistics of a turbulent boundary layer at moderate Reynolds number, J. of Fluid Mechanics, Vol. 787, pp 84 – 115, 2015.
[J16] Araya G., Castillo L. and Hussain F., The log behavior of the Reynolds shear stress in accelerating turbulent boundary layers, J. of Fluid Mechanics, Vol. 775, pp 189 – 200, 2015.
[J15] Kiliyanpilakkil V. P., Basu S., Ruiz-Columbié A., Araya G., Castillo L., Hirth B., and Burgett W., Buoyancy effects on the scaling characteristics of atmospheric boundary-layer wind fields in the mesoscale range, Phys. Rev. E 92, 033005, 2015.
[J14] Bilal M., Araya G., Birkelund Y., Preliminary assessment of remote wind sites, Energy Procedia, Energy Procedia, 75, 658 – 663, 2015.
[J13] Cardillo J., Chen Y., Araya G., Newman J., Jansen K. and Castillo L., DNS of turbulent boundary layers with surface roughness, J. of Fluid MechanicsVol. 729, pp 603 – 637, 2013.
[J12] Araya G. and Castillo L., DNS of turbulent thermal boundary layers subjected to adverse pressure gradients, Physics of Fluids, 25, 095107, 2013.
[J11] Araya G. and Castillo L., DNS of turbulent thermal boundary layers up to Re_q= 2300, Int. Journal of Heat and Mass Transfer, Volume 55, Issues 15–16, 4003-4019, 2012.
[J10] Araya G., Castillo L., Meneveau C. and Jansen K., A dynamic multi-scale approach for turbulent inflow boundary conditions in spatially evolving flows, J. of Fluid MechanicsVol. 670, pp. 581–605, 2011.
[J9] Araya G., Leonardi S. and Castillo L., Steady and time-periodic blowing/suction perturbations in a turbulent channel flow, Physica D 240 pp. 59–77, 2011.
[J8] Araya G., Jansen K. and Castillo L., Inlet condition generation for spatially-developing turbulent boundary layers via multi-scale similarity, J. of Turbulence, 10, No. 36, pp. 1-33, 2009.
[J7] Araya G., Leonardi S. and Castillo L., Numerical assessment of local forcing on the heat transfer in a turbulent channel flow,Physics of Fluids, 20,085105, 2008.
[J6] Araya G., Leonardi S. and Castillo L., Passive scalar statistics in a turbulent channel with local time-periodic blowing/suction at walls, Physica D, 237, pp. 2190–2194, 2008.
[J5] Wang X., Castillo L. and Araya G., Temperature scalings and profiles in forced convection turbulent boundary layers, Journal of Heat Transfer, Vol.130, 2, 2008.
[J4] Araya G., Leonardi S., Castillo L. and Orlandi P., DNS of turbulent channel flow with local forcing at walls,International Journal of Transport Phenomena, Vol. X, pp. 1–13, 2007.
[J3] Jia Y. and Araya G., Numerical analysis of the design parameters on the performance of thin film temperature sensors, Measurement Science and Technology, 18, pp. 2268–2274, 2007.
[J2] Araya G. and Gutierrez G., Analytical solution for a transient, three-dimensional temperature distribution due to a moving laser beam, Int. Journal of Heat and Mass Transfer, 49 (21-22): 4124-4131, 2006.
[J1] Jia Y. and Araya G., Dynamic performanceof thin film temperature sensor in a lubricated contact,Proc. of the Institution of Mechanical Engineers, Part J, Journal of Engineering Tribology, 220 (J6): 487-497, 2006.

Publications in Refereed Chapter Books

[B6] Araya G., Castillo L. and Hussain F., DNS of turbulent boundary layers in the quasi-laminarization process, Wall-Turbulence Meeting, Lille, France. ERCOFTAC series, Springer, 2014.
[B5] Araya G., Castillo L. and Jansen K., DNS of stable spatially developing turbulent thermal boundary layers under weak stratification, In Progress in Turbulence V, Springer Proceedings in Physics, 2013.
[B4] Araya G. and Castillo L., DNS of turbulent boundary layers subjected to adverse pressure gradients, In Progress in Turbulence IV, Springer Proceedings in Physics, 2012.
[B3] Araya G., Evans B., Hassan O. and Morgan K., Scale adaptive simulations over a supersonic car, Computational Fluid Dynamics, Springer-Verlag, 2010.
[B2] Araya G., Castillo L., Meneveau C. and Jansen, K., A multi-scale dynamic method for spatially evolving flows, Progress in Wall Turbulence: Understanding and Modeling, ERCOFTAC series, Springer, 2009.
[B1] Araya G., Bohr E., Jansen K. and Castillo L., Generation of turbulent inlet conditions for velocity/thermal boundary layer simulations, In Progress in Turbulence II, Springer Proceedings in Physics, vol. 109, 2006.

Articles in Refereed Conference Proceedings

[C40] Holland M., Lagares C. and Araya G., Periodicity Detection Methodology in Spatially-Developing Turbulent Boundary Layers. 2024 AIAA Aviation Forum (AIAA 2024-4463) 29 July – 2 August 2024 Las Vegas, Nevada 10.2514/6.2024-4463 (oral presentation and conference paper)
[C39] Lagares C., Holland M. and Araya G., Investigation of Unconventional Coherent Structures in Implicit Large Eddy Simulations of Supersonic Turbulent Boundary Layers. 2024 AIAA SciTech Forum (AIAA 3773400) 8 – 12 January, 2024, Orlando, FL 10.2514/6.2024-0069 (oral presentation and conference paper)
[C38] Lagares C. and Araya G., Lagrangian coherent structures and heat transport in compressible flows. Proceedings of the 21^st International Conference of Numerical Analysis and Applied Mathematics, Crete, Greece 11-17 September 2023 (oral presentation and conference paper)
[C37] Araya G., Passive and active scalar transport phenomena in low Mach number flows. Proceedings of the 21^st International Conference of Numerical Analysis and Applied Mathematics, Crete, Greece 11-17 September 2023 (oral presentation and conference paper)
[C36] Ramirez M. and Araya G., Unsteady Incompressible Thermal Laminar Boundary Layers Subject to Streamwise Pressure Gradients. Proceedings of the 21^st International Conference of Numerical Analysis and Applied Mathematics, Crete, Greece 11-17 September 2023 (oral presentation and conference paper)
[C35] Lagares C. and Araya G., Evaluating the Impact of Lossy Compression on a Direct Numerical Simulation of a Mach 2.5 Turbulent Boundary Layer. 2023 AIAA SciTech Forum (AIAA 3773400) 23 – 27 January, 2023, National Harbor, MD & Online https://doi.org/10.2514/6.2023-1684 (oral presentation and conference paper)
[C34] Saltar G., Lagares C., and Araya G. Compressibility and Reynolds number effect on Lagrangian Coherent Structures (LCS). AIAA AVIATION 2022 Forum June 27-July 1, 2022 Chicago, IL & Virtual https://doi.org/10.2514/6.2022-3627 (oral presentation and conference paper)
[C33] Ramirez M. and Araya G., Falkner-Skan similarity flow solutions subject to wall curvature and passive scalar transport. Procs. of the 7th Thermal and Fluids Engineering Conference (TFEC2022), Las Vegas, NV, USA on May, 16-18, 2022 (oral presentation and conference paper)
[C32] Paeres D., Lagares C. and Araya G., Assessment of Incompressible Turbulent Flow Over a Curved Hill with Passive Scalar Transport. 2022 AIAA SciTech Forum (AIAA 3604362) 3 – 7 January, 2022, San Diego, CA. (oral presentation and conference paper)
[C31] Lagares C. and Araya G., Power spectrum analysis in supersonic/hypersonic turbulent boundary layers. 2022 AIAA SciTech Forum (AIAA 3609547) 3 – 7 January, 2022, San Diego, CA. (oral presentation and conference paper)
[C30] Lagares C. and Araya G., Compressibility Effects on High-Reynolds Coherent Structures via Two-Point Correlations. 2021 AIAA AVIATION Forum (AIAA 3516309) 2 – 6 August, 2021, Virtual. (oral presentation and conference paper)
[C29] Araya, G., Lagares, C., Santiago, J., and Jansen, K., Wall temperature effect on hypersonic turbulent boundary layers via DNS, AIAA SciTech 2021 Forum, 2021 (oral presentation and conference paper)
[C28] Lagares, C., Rivera, W., and Araya, G., Aquila: A Distributed and Portable Post-Processing Library for Large-Scale Computational Fluid Dynamics, AIAA SciTech 2021 Forum, 2021 (oral presentation and conference paper)
[C27] D. Paeres, J. Santiago, C. Lagares, W. Rivera, A. B. Craig and G. Araya, Design of a Virtual Wind Tunnel for CFD Visualization, AIAA SciTech 2021 Forum, 2021 (oral presentation and conference paper)
[C26] Ramirez M. and Araya G., Examination of compressibility effects in the Falkner-Skan equations. Procs. of the 5^th Thermal and Fluids Engineering Conference (TFEC2020), New Orleans, Louisiana, USA, April 5-8, 2020 (oral presentation and conference paper)
[C25] Araya G., Lagares C. and Jansen K., Reynolds number dependency in supersonic spatially-developing turbulent boundary layers. 2020 AIAA SciTech Forum (AIAA 3247313) 6 – 10 January, Orlando, FL, 2020 (oral presentation and conference paper)
[C24] Araya G. Lagares C. and Jansen K., Direct simulation of a Mach-5 turbulent spatially-developing boundary layer. 49th AIAA Fluid Dynamics Conference, AIAA AVIATION Forum, (AIAA 3131876) 17 – 21 June, Dallas, TX, 2019 (oral presentation and conference paper)
[C23] Araya G. and Jansen K., Compressibility effect on spatially-developing turbulent boundary layers via DNS. Procs. of the 4^th Thermal and Fluids Engineering Conference (TFEC2019), April 14-17, 2019, Las Vegas, NV, USA (oral presentation and conference paper)
[C22] Saltar G. and Araya G., Turbulence modeling of boundary layers subject to very strong Favorable Pressure Gradient (FPG) with passive scalar transport. Procs. of the 4^th Thermal and Fluids Engineering Conference (TFEC2019), April 14-17, 2019, Las Vegas, NV, USA (oral presentation and conference paper)
[C21] Quinones C., Araya G. and Chen Y., Thermal transport in a crossflow jet subject to a very strong favorable pressure gradient. Procs. of ASME 2017 International Mechanical Engineering Congress and Exposition IMECE 2017, November 3-9, 2017, Tampa, USA (oral presentation and conference paper)
[C20] Araya G., Shedding Light into the Quasi-Laminarization Process, 46^thAIAA Fluid Dynamics Conference, AIAA AVIATION Forum, (AIAA 2016-3188) 13 – 17 June, Washington, DC, 2016 (oral presentation and conference paper)
[C19] Bilal M., Sridhar N., Araya G., Parameswaran S., Birkelund Y., Wind flow over a complex terrain in Nygardsfjell, Norway, Proc. of the ASME 2015 Energy Solutions for a Sustainable Future, June 28-July 2, 2015, San Diego, USA.
[C18] Kiliyanpilakkil P., Gutierrez W., Araya G., Basu S., Ruiz-Columbie A., Castillo L., Understanding the Low-level jet characteristics using the WRF model over the West Texas Region, Proc. of the NWRC Summer Research Institute, June-July 2014, Lubbock, Texas, USA.
[C17] Gutierrez W., Araya G., Basu S., Ruiz-Columbie A. and Castillo L., Toward Understanding Low Level Jet Climatology over West Texas and its Impact on Wind Energy, Journal of Physics: Conference Series 524 (2014) 012008. doi:10.1088/1742-6596/524/1/012008
[C16] Debnath M., Araya G., Castillo L. and Bhaganagar K., Proposing dynamic multiscale method and convective outlet condition in SOWFA, Proc. of the NWRC Summer Research Institute, June-July 2013, Lubbock, Texas, USA.
[C15] Araya G., Castillo L., Ruiz-Columbie A., Schroeder J. and Basu S., On the similarities of the engineering and atmospheric boundary layers, Proceedings of the 20^thSymposium on Boundary Layers and Turbulence, 9-13 July 2012, Boston, MA, USA.
[C14] Araya G., Chen Y. and Castillo L., Turbulent thermal boundary layers simulations in rough walls via DNS, 7^thInternational Conference on Computational Fluid Dynamics (ICCFD7), Big Island, Hawaii, July 9-13, 2012.
[C13] Araya G.and Castillo L., DNS of Thermal Turbulent Boundary Layers Subject to External Pressure Gradient, 6^thAIAA Theoretical Fluid Mechanics Conference 27 – 30 June, Honolulu, Hawaii, 2011.
[C12] Araya G., Evans B., Hassan O. and Morgan K., Assessment of several turbulence models in a supersonic car, 5^thECCOMAS CFD, Lisbon, Portugal, 2010.
[C11] Araya G., Cal R.B. and Castillo L., Energy budget analysis for favorable pressure gradient turbulent boundary layers using Direct Numerical Simulations, 8^thERCOFTAC Symposium on Eng. Turbulence Modelling and Measurement, Marseille, France, 2010.
[C10] Cardillo J., Chen Y., Araya G., Jansen K. and Castillo L., DNS of turbulent boundary layers with surface roughness, 8^thERCOFTAC Symposium on Eng. Turbulence Modelling and Measurement, Marseille, France, 2010.
[C9] Araya G., Jansen K. and Castillo L., DNS of forced convection turbulent boundary layers in ZPG/APG flows, 5^thAIAA Theoretical Fluid Mechanics Conference 23 – 26 June 2008, Seattle, Washington
[C8] Araya G., Leonardi S. and Castillo L., DNS of a passive scalar in a turbulent channel with local forcing at walls, 5^thInt. Symposium on Turbulence and Shear Flow Phenomena, August 27-29, 2007, Munich, Germany.
[C7] Araya G., Leonardi S., Castillo L. and Orlandi P., DNS of turbulent channel flow with local forcing at walls, 17^thInt. Symposium on Transport Phenomena, 4-8 September, 2006, Toyama, Japan.
[C6] Araya G., Bohr E., Jansen K., Castillo L., and Peterson K.,Generation of turbulent inlet conditions for thermal boundary layers, 44^thAIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, Jan. 9-12, 2006, AIAA-2006-699.
[C5] Jia Y. and Araya G., The influence of the design parameters on the performance of thin film temperature sensors, Proceedings of World Tribology Congress III, ASME, September 12-16, 2005, Washington, D.C., USA.
[C4] Gutierrez G. and Araya G., Transient, three dimensional numerical model of a laser cutting process with phase change consideration, Proceedings of IMECE:ASME Congress Anaheim, California, November 15-21, 2004.
[C3] Gutierrez G. and Araya G., Analytical solution for a transient three-dimensional temperature distribution in laser assisted machining processes, Proceedings of NHTC04: 2004 ASME Summer Conference Charlotte, NC, USA.
[C2] Jia Y., Araya G.and Gutierrez G., Numerical analysis of response time for thin film temperature sensors in lubricated contact, Proceedings of NHTC04: 2004 ASME Summer Conference Charlotte, NC, USA.
[C1] Gutierrez G. and Araya G., Temperature distribution in a finite solid due to a moving laser beam, Proceedings of IMECE: ASME Congress Washington, D.C., November 15-21, 2003.

Video Displays and Posters

[P10] Setting User Attributes in Virtual Reality for Fluid Dynamics Visualization. Brandon Antron, David Paeres, Akshay Kulshrestha and Guillermo Araya. TACCSTER 2023 Proceedings. http://dx.doi.org/10.26153/tsw/48966
[V9] Dynamic fully immersive virtual reality of supersonic flows. D. Paeres, C. Lagares and G. Araya. 75^th APS-DFD November 2022 (Virtual) DOI: https://doi.org/10.1103/APS.DFD.2022.GFM.V0026
[V8] High-Resolution 4D Lagrangian Coherent Structures. C. Lagares and G. Araya. 75^th APS-DFD November 2022 (Virtual) DOI: https://doi.org/10.1103/APS.DFD.2022.GFM.V0025
[V7] The use of augmented reality (AR) in flow visualization. D. Paeres, C. Lagares and G. Araya. 74^th APS-DFD November 2021 (Virtual) DOI: https://doi.org/10.1103/APS.DFD.2021.GFM.V0028
[V6] Wall temperature effect on thermal coherent structures over supersonic turbulent boundary layers subject to surface curvature. C. Lagares, D. Paeres, and G. Araya. 74^th APS-DFD November 2021 (Virtual) DOI: https://doi.org/10.1103/APS.DFD.2021.GFM.V0027
[V5] Turbulent Coherent Structures via VR/AR. D. Paeres, C. Lagares, J. Santiago, A. Craig, K. Jansen and G. Araya. 73^th APS-DFD November 2020 (Virtual) DOI: https://doi.org/10.1103/APS.DFD.2020.GFM.V0045
[V4] Supersonic turbulent boundary layer subject to strong concave and convex wall curvatures. G. Araya, C. Lagares and K. Jansen. 73^th APS-DFD November 2020 (Virtual) DOI: https://doi.org/10.1103/APS.DFD.2020.GFM.V0040
[V3] Visualization of DNS data via Virtual Reality. J. Santiago and G. Araya. 72^th APS-DFD November 2019. Seattle, WA. DOI: https://doi.org/10.1103/APS.DFD.2019.GFM.V0070
[V2] Symbiosis of quasi-streamwise vortices and low-speed streaks in laminarescent boundary layers. J. Santiago, G. Araya, G. Marin, F. Cucchietti. 71^th APS-DFD November 2018. Atlanta, GA. DOI: https://doi.org/10.1103/APS.DFD.2018.GFM.V0021
[V1] Hydrodynamic and thermal turbulent structures in laminarescent boundary layers, Araya G., Torres G., Marin G. and Cucchietti F., Gallery of Fluid Motion, 70^th APS-DFD November 2017. Denver, CO. DOI: https://doi.org/10.1103/APS.DFD.2017.GFM.V0048

Selected Presentations

P66. Some recent advances on direct simulations of turbulent boundary layers. Invited Speaker. Mentor seminar series from the Bridge to Doctorate Program (UPR), November 19th, 2021.

P65. Effects of wall curvature on hypersonic turbulent spatially-developing boundary layers. Invited Speaker. 2021 AFOSR/ONR/HVSI Hypersonic Aerothermodynamics Portfolio Review (Virtual), July 19-23 2021.

P64. Research activities at the High Performance Computing and Visualization Laboratory (HPCVL). Invited Speaker. Engineering’s week. AIAA UPRM Branch (Virtual), February 19, 2021.

P63. Wall temperature effect on hypersonic turbulent boundary layers via DNS, AIAA SciTech 2021 Forum, 2021.

P62. Numerical subgrid-scale modeling of supersonic spatially-developing turbulent boundary layers. The 73^rd Annual Meeting of the APS Division of Fluid Dynamics. November 22–24, 2020; Virtual.

P61. Effects of wall curvature on hypersonic turbulent spatially-developing boundary layers. Invited Speaker. 2020 AFOSR/ONR/HVSI Hypersonic Aerothermodynamics Portfolio Review (Virtual), July 27-31 2020.

P60. Numerical Predictions and Visualization of High-speed Turbulent Boundary Layers via DNS. Invited Speaker as part of the seminar series of the program Computing and Information Sciences and Engineering (CISE) in UPRM on May 21st, 2020.

P59. Thermal Transport in High-Speed turbulent Boundary Layers. Invited Speaker as part of SANDIA-UPRM webinars on August 11 and 12, 2020.

P58. Turbulent inflow information generation for supersonic boundary layers subject to concave wall curvature via DNS. Invited Speaker. University of Central Florida. Orlando, FL, January 10, 2020.

P57. DNS of supersonic turbulent boundary layers subject to adverse and favorable pressure gradient. Invited Speaker. University of South Florida. Tampa, FL, in January 9, 2020.

P56. Reynolds number dependency in supersonic spatially-developing turbulent boundary layers, 2020 AIAA SciTech Forum (AIAA 3247313) 6 – 10 January, Orlando, FL, 2020.

P55. Turbulent inflow information generation for compressible boundary layers, 72^th Annual Meeting, APS Division of Fluid Dynamics, 23 – 26 November, 2019. Seattle, WA, USA.

P54. Effects of wall curvature on hypersonic turbulent spatially-developing boundary layers. Invited Speaker. 2019 Annual Review for the AFOSR High Speed Aerodynamics Portfolio and the ONR Hypersonics Portfolio. Boulder, CO, July 8-12 2019.

P53. Turbulent inflow information generation for compressible boundary layers, 72^th Annual Meeting, APS Division of Fluid Dynamics, 23 – 26 November, 2019. Seattle, WA, USA.

P52. Direct simulation of a Mach-5 turbulent spatially-developing boundary layer and Visualization of turbulent events in wall-bounded flows via Virtual Reality, the 49^th AIAA Fluid Dynamics Conference, AIAA AVIATION Forum, (AIAA 3131876) 17 – 21 June, Dallas, TX, 2019.

P51. Compressibility effect on spatially-developing turbulent boundary layers via DNS, 4th Thermal and Fluids Engineering Conference (TFEC2019), April 14-17, 2019, Las Vegas, NV, USA.

P50. Reynolds number dependency in supersonic spatially-developing turbulent boundary layers via DNS, 71th Annual Meeting, APS Division of Fluid Dynamics, 18 – 20 November, 2018. Atlanta, GA, USA.

P49. Direct Numerical Simulation of spatially-developing turbulent boundary layers. Invited Speaker. 2018 Annual Review for the AFOSR High Speed Aerodynamics and the ONR Hypersonics Portfolio. July 30 2018, Arlington, VA.

P48. Computational fluid dynamics for aerodynamics applications. Invited Speaker. Virtual conference to Universidad Nacional Federico Villarreal (Lima, Peru) on June 13, 2018.

P47. Hypersonic spatially-developing turbulent boundary layers via DNS. 13^th World Congress on Computational Mechanics (WCCM XIII). July 22-27, 2018, New York, NY, USA.

P46. DNS of accelerating crossflow jets. 13^th World Congress on Computational Mechanics (WCCM XIII). July 22-27, 2018, New York, NY, USA.

P45. DNS of spatially-developing turbulent boundary layers: visualization of turbulent events. Invited Speaker. Barcelona Supercomputing Center, February 23 2017, Barcelona, Spain, 2018.

P44. Compressibility effect on thermal coherent structures in spatially-developing turbulent boundary layers via DNS, 70^thAnnual Meeting, APS Division of Fluid Dynamics, November 2017, Denver, Colorado, USA.

P43. Effects of wall curvature on hypersonic turbulent spatially-developing boundary layers. Invited Speaker. 2017 Annual Review for the AFOSR High Speed Aerodynamics Portfolio and the ONR Hypersonics Portfolio. July 27 2017, NASA Langley, Hampton, VA.

P42. DNS of Crossflow Jet Subject to Very Strong Favorable Pressure Gradient. Invited Speaker. Soft Matter Seminar Series. REU Site, July 5 2017, UPRM, Mayaguez, PR.

P41. The laminarescent region in the quasi-laminarization process: a vorticity dynamics perspective, 69^thAnnual Meeting, APS Division of Fluid Dynamics, November 2016, Portland, Oregon, USA.

P40. Shedding light into the quasi-laminarization process, 46^thAIAA Fluid Dynamics Conference, AIAA AVIATION Forum, (AIAA 2016-3188) 13 – 17 June, Washington, DC, 2016.

P39. The Weather Research and Forecasting (WRF) model for wind energy applications. Invited Speaker. of Mechanical Engineering, University of Puerto Rico at Mayaguez, October 2016, Puerto Rico, USA.

P38. Assessment of Turbulence Models in the Aerodynamic Design of a Supersonic Car: Breaking the Land Speed World Record. Invited Speaker. of Mechanical Engineering, University of Puerto Rico at Mayaguez, September 2015, Puerto Rico, USA.

P37. Numerical simulations of turbulent flows: from fundamental knowledge to wind energy applications. Invited Speaker. College of Science and Engineering, Texas A&M University-Corpus Christi, April 2015, Corpus Christi, Texas, USA.

P36. Drag Reduction Mechanisms in Pipe and Channel Flows. Invited Speaker. of Mechanical Engineering, University of Texas at San Antonio, January 2015, San Antonio, Texas, USA.

P35. Evolution of the Reynolds shear stresses in highly accelerated turbulent boundary layers, 67^thAnnual Meeting, APS Division of Fluid Dynamics, November 2014, San Francisco, California, USA.

P34. Modelling of low-level jet and katabatic events via WRF and understanding its structural impact on wind turbines. Invited Speaker. Nov. 6 2014, University of Texas at Dallas, USA.

P33. DNS of Turbulent Boundary Layers in the Quasi-Laminarization Process, Progress in Wall Turbulence: Understanding and Modelling. Lille, France, June 18-20, 2014.

P32. Spatially-Developing Turbulent Momentum/Thermal Boundary Layers with Adverse Streamwise Pressure Gradients via DNS. Invited Speaker. Turbulence, Mixing and Flow Control seminar series, June 23 2014, Imperial College, London, UK.

P31. Turbulent thermal boundary layers subjected to severe acceleration, 66^thAnnual Meeting, APS Division of Fluid Dynamics, November 2013, Pittsburgh, Pennsylvania, USA.

P30. Analysis of Low Level Jets (LLJs) and its implications for wind energy, VIII Brazilian Micrometeorology Workshop, November 20-22, 2013 Santa Maria, RS, Brazil.

P29. Assessment of the Dynamic Multi-scale Approach (DMA) in turbulent momentum/thermal boundary layers subjected to APG. Invited Speaker. Symposium on Frontiers in Fluid Dynamics, November 1-3, 2013, San Juan, Puerto Rico, USA.

P28. The importance of turbulent inflow conditions on unsteady numerical simulations of spatially-developing boundary layers (DOI: 10.4172/2168-9873.S1.002)Invited Speaker, 137^thOMICS Group Conference. International Conference and Exhibition on Mechanical & Aerospace Engineering. September 30 – October 02, 2013 Hilton San Antonio Airport, USA.

P27. DNS of stratified spatially-developing turbulent thermal boundary layers, 65^thAnnual Meeting, APS Division of Fluid Dynamics, November 2012, San Diego, California, USA.

P26. Numerical research at the National Wind Resource Center. Invited Speaker. Dep. of Aerospace Engineering, Politecnico di Milano, October 2012, Milan, Italy.

P25. DNS of stable spatially-developing turbulent thermal boundary layers under weak stratification, Conference on Turbulence (iTi 2012), October 2012, Bertinoro, Italy.

P24. CFD of Turbulent Flows: from Wind Energy Applications to the Aerodynamic Design of a Supersonic Car. Invited Speaker. of Mechanical Engineering, University of Texas at San Antonio, September 2012, San Antonio, Texas, USA.

P23. On the similarities of the engineering and atmospheric boundary layers, 20^thSymposium on Boundary Layers and Turbulence, 9-13 July 2012, Boston, MA, USA.

P22. Future Experimental Study to Compare the Effects of Two-Bladed and Three-Bladed Model Wind Turbine Designs in an Array, Wind Farms’ Underperformance & Partnerships: Building Partnerships to Meet the 2030 Grand Challenge, March 28 – 29 2012, Lubbock, TX, USA (poster).

P21. Stable and Unstable Thermal Stratified Boundary Layers, Wind Farms’ Underperformance & Partnerships: Building Partnerships to Meet the 2030 Grand Challenge, March 28 – 29 2012, Lubbock, TX, USA (poster).

P20. Numerical Tools for Solving Turbulent Wall-Bounded Flows. Invited Speaker. CIMAT, March 2012, Guanajuato, Mexico.

P19. Computational Fluid Dynamics of Turbulent Wall-Bounded Flows. Invited Speaker. of Mechanical Engineering, Texas Tech University, February 2012, Lubbock, Texas, USA.

P18. DNS of very strong adverse pressure gradient flows with eventual separation, 64^thAnnual Meeting, APS Division of Fluid Dynamics, November 2011, Baltimore, Maryland, USA.

P17. DNS at High Reynolds numbers of Thermal Turbulent Boundary Layers Subjected to External Pressure Gradients, 64^thAnnual Meeting, APS Division of Fluid Dynamics, November 2011, Baltimore, Maryland, USA.

P16. Numerical simulations of a supersonic car: The Bloodhound Project. Invited Speaker. Portland State University, November 2010, Oregon, USA.

P15. DNS of turbulent heat transfer in spatially-developing flows. Invited Speaker. Los Alamos National Laboratory, November 2010, New Mexico, USA.

P14. Unsteady numerical simulations over the BLOODHOUND supersonic car, 63^thAnnual Meeting, APS Division of Fluid Dynamics, November 2010, Long Beach, California, USA.

P13. Scale adaptive simulations over a supersonic car, 6^thInternational Conference on CFD, St. Petersburg, Russia, 2010.

P12. The Use of Turbulence Models in the Aerodynamic Design of A Supersonic Car: Breaking the World Record. Invited Speaker. Rensselaer Polytechnic Institute, November 2009, New York, USA.

P11. A dynamic multi-scale approach for turbulent inflow generation in spatially-developing boundary layers with streamwise pressure gradients, 61^thAnnual Meeting, APS Division of Fluid Dynamics, November 2008, San Antonio, Texas, USA.

P10.Numerical heat transfer analysis in turbulent wall bounded flows. Invited Speaker. University of Karlsruhe, January 2008, Karlsruhe, Germany.

P9.Active control of turbulent heat transfer by local forcing: an energy assessment, 60^th Annual Meeting, APS Division of Fluid Dynamics, November 2007, Salt Lake City, Utah, USA.

P8.DNS of heat transfer in a high Reynolds number turbulent channel flow with local forcing, conference on “Euler Equations: 250 Years On”, June 2007, Aussois, France (poster).

P7.Thermal boundary layers simulations under adverse pressure gradients, 11^th European Turbulence Conference, June 2007, Porto, Portugal (poster).

P6.DNS of a passive scalar in a turbulent channel with local forcing at walls, 59^th Annual Meeting, APS Division of Fluid Dynamics, November 2006, Tampa, FL, USA.

P5.Numerical analysis of drag reduction in a turbulent channel with local forcing. Invited Speaker. September 2006, University of Puerto Rico-Mayaguez, USA.

P4.DNS of heat transfer in turbulent channel flows, 2^nd Annual Tech Valley Engineering Symposium, April 2006, Albany, NY, USA.

P3.DNS in a turbulent channel with periodic blowing/suction velocity boundary conditions, 58^th Annual Meeting, APS Division of Fluid Dynamics, November 2005 Chicago, IL, USA.

P2.Generation of turbulent inlet conditions for velocity/thermal boundary layer simulations, iTi 2005 conference on Turbulence, September 2005, Bad Zwischenahn, Germany.

P1.Computational generation of turbulent inlet conditions in spatially evolving boundary layers, 1st Annual Tech Valley Engineering Symposium, April 2005, Albany, NY, USA.