In this work, the dynamics of bioconvection process gravitactic microorganisms enclosed in a rectangular cavity, is analyzed. The dimensionless cell and energy conservation equations are coupled with vorticity-stream function formulation. Then, effects Rayleigh number heating source on discussed. results based streamlines, concentration temperature contours obtained through numerical simulation...

In this study, a numerical simulation is carried out investigation the mixed convection in an open lid _driven wall cavity attached to horizontal rectangular channel. Three different cases were considered depending on direction of moving sidewalls cavity. case(1), no walls assumed ; While for case (case 2) left sidewall moves downward, (case3) both and right are downward. A comparative case( ca...

We present the results of numerical and experimental studies of the elastic enhancement factorW for microwave rough and rectangular cavities simulating two-dimensional chaotic and partially chaotic quantum billiards in the presence of moderate absorption. We show that for the frequency range ν = 15.0−18.5 GHz, in which the coupling between antennas and the system is strong enough, the values of...