کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
655622 | 1457654 | 2011 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Stability analysis of thermosolutal convection in a horizontal porous layer using a thermal non-equilibrium model Stability analysis of thermosolutal convection in a horizontal porous layer using a thermal non-equilibrium model](/preview/png/655622.png)
A stability analysis is carried out to investigate the onset of thermosolutal convection in a horizontal porous layer when the solid and fluid phases are not in a local thermal equilibrium, and the solubility of the dissolved component depends on temperature. To study how the reaction and thermal non-equilibrium affect the double-diffusive convection, the effects of scaled inter-phase heat transfer coefficient H and dimensionless reaction rate k on thermosolutal convection are discussed . The critical Rayleigh number and the corresponding wave number for the stability and overstability convections are obtained. Specially, asymptotic analysis for both small and large values of H and k is presented, and the corresponding asymptotic solutions are compared with numerical results. At last, a nonlinear stability analysis is presented to study how H and k affect the Nusselt number.
Journal: International Journal of Heat and Fluid Flow - Volume 32, Issue 1, February 2011, Pages 78–87