Rayleigh-Bénard convection with throughflow - a comparative study between the single-term and higher order Galerkin methods

• Autorzy: Shivakumara I. S. , Suma S. P.
• Języki publikacji: EN

Abstrakty

EN

Effects of non-uniform temperature gradient, vertical transport of momentum and vertical transport of perturbation temperature due to throughflow are investigated on the Rayleigh-Bénard convection for different hydrodynamic boundary conditions. The eigenvalue problem for the conducting boundaries is solved by the higher-order Galerkin method. It is shown that the throughflow in one particular direction destabilizes the system depending on the value of the Prandtl number. Also a comparison between the results of single-term and higher order Galerkin methods is made and limitations of the single-term Galerkin method are clearly brought out.

Słowa kluczowe

EN

troughflow; Rayleigh-Benard convection; stability; Galerkin method

PL

hydrodynamika

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Applied Mechanics and Engineering
• Rocznik: 2000
• Tom: Vol. 5, no 3
• Strony: 507--520
• Opis fizyczny: Bibliogr. 9 poz., tab., wykr.

Twórcy

autor

Shivakumara I. S.

autor

Suma S. P.

• UGC-DSA Centre in Fluid Mechanics, Central College, Bangalore University, Department of Mathematics, Bangalore-560 001, INDIA,