این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Applied Fluid Mechanics، جلد ۱۲، شماره ۱، صفحات ۸۵-۹۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Double-Diffusive Convection in an Oldroyd-B fluid Layer-Stability of Bifurcating Equilibrium Solutions
چکیده انگلیسی مقاله The nonlinear stability of stationary and oscillatory double-diffusive convection in an Oldroyd-B fluid layer is investigated using a perturbation method. The cubic Landau equations are derived and based on which the stability of stationary and oscillatory bifurcating solutions in the neighborhood of their critical values is discussed. The boundary between stationary and oscillatory convection demarcated by identifying a codimension-two points in the viscoelastic parameters plane. The bifurcating solution is found to be subcritical depending on the choices of physical parameters. Heat and mass transport are estimated in terms of Nusselt numbers. The effect of Prandtl number is observed only in the case of oscillatory motions and increase in its value is to decrease the heat and mass transfer. Besides, increasing relaxation and retardation parameters is to decrease and increase the amount of heat and mass transfer, respectively in the stationary case, while these parameters found to exhibit an opposing kind of behavior in the case of oscillatory motions.
کلیدواژه‌های انگلیسی مقاله Double, Perturbation method, diffusive convection, Stability, Bifurcation, Oldroyd, B fluid, Heat and mass transfer
نویسندگان مقاله K. R. Raghunatha |
Department of Mathematics, Bangalore University, Bangalore-560 056

I. S. Shivakumara |
Department of Mathematics, Bangalore University, Bangalore-560 056

نشانی اینترنتی https://www.jafmonline.net/article_750_64b40dcf0482cbadce64b3f66fe4ecd1.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات