Analytical and numerical investigations were performed to study the influence of Soret Dufour effects on double-diffusive convection in a vertical porous layer filled with binary mixture subject horizontal thermal solute gradients. In particular, was focused effect diffusion bifurcation types from rest state toward steady convective state, then oscillatory state. The Brinkman-extended Darcy mod...

Diffusive transport of mass occurs at small scales in turbulent premixed flames. As a result, multicomponent diffusion, which is often neglected direct numerical simulations (DNS) combustion, has the potential to impact both turbulence and flame characteristics scales. In this study, we evaluate these impacts by examining enstrophy dynamics internal structure for lean hydrogen-air neglecting se...

A numerical investigation of unsteady boundary layer flow with heat and mass transfer non-Newtonian fluid model, namely, Jeffrey subject, to the significance Soret Dufour effects is carried out by using local nonsimilarity method homotopy analysis method. An excellent agreement in results obtained both methods observed we establish a new mathematical approach obtain solutions unsteady-state phe...

We present an experimental investigation of Rayleigh-Bénard convection in binary-gas mixtures. In order to interpret the results quantitatively, we determined the necessary thermodynamic and transport properties for six mixtures ~He-CO2, He-SF6, He-Xe, Ne-Ar, Ar-CO2, and H2-Xe! by a combination of data from the literature, molecular-theory calculations, and thermal-conductivity measurements. Al...