Gallery Videos and Animations Using Our In-House Codes Interaction of two parallel vortex rings of the same sense and same strength Interaction of two perpendicular vortex rings of the same sense and same strength DNS of 10,000 particles being fluidized Flows in a cyclone separator Nanoparticle clustering in nanofluids Settling of a heavy particle in suspensions of different particle sizes A droplet impact with a solid wall Change of fluid pressures during a particle-wall collision. Two-fluid model (TFM) simulation of a bubbling fluidized bed Segregation in binary dispersed flows Motion of particles of different shapes in shear flows Falling of a cluster of hot particles in a cold fluid Setling of one hot particle and one cold particle Heat transfer from a spinning disk A droplet passing through a narrow section Simulation of flow in porous media