A numerical study is performed to investigate the effect of height-to-width aspect ratio, Grashof number, and Schmidt number on the Double-diffusive convection of a fluid contained in a rectangular cavity with partially thermally active side walls. The active part of the left side wall is at a higher temperature and concentration than that of the right side wall. The length of the thermally act...

Three-dimensional double-diffusive Marangoni convection in a cubic cavity is studied in the present paper. Both the temperature and solute concentration gradients are applied horizontally. Direct numerical simulations are carried out for surface-tension Reynolds number 10≤Re≤500, surface-tension ratio -2≤R(σ)≤1, and Lewis number 1<Le≤200. Symmetry-breaking pitchfork bifurcation is observed, whi...

Abstract In this paper, we study the effects of rotational modulation on heat and mass transport due to double‐diffusive magnetoconvection in an electrically conducting fluid. study, different modes are considered. Using a perturbation method, Ginzburg–Landau equation which is nonautonomous obtained for amplitude. The effect transfer studied. For investigation buoyancy ratio onset convection, s...

More than 90% of the toxic gas in industrial production process is heavy gas. However, under non-isothermal conditions, due to uncertainty direction buoyancy, traditional ventilation method cannot be used discharge heat and pollutants. In this study, we adopted numerical simulation. The model study a two-dimensional double-diffusion model. typical heavy-specific gravity sulphur hexafluoride (SF...

Abstract It is well known that when a horizontal layer of fluid heated from below, thermal boundary less dense and hot rises up. When this becomes unstable, convective motion in the above sets in. Forecasting instabilities take place essential. salt dissolved saturating porous medium below considered, simultaneous mass diffusion occur. Unlike heat, can only through phase, so an additional physi...