<p>Comparative analysis of Darcy and Brinkman models at studying of transient conjugate natural convection in a porous cylindrical cavity</p>

Trifonova T.A.; Sheremet M.A.

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Comparative analysis of Darcy and Brinkman models at studying of transient conjugate natural convection in a porous cylindrical cavity

Trifonova T.A., Sheremet M.A.

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Comparative analysis of two models of porous medium (Dacry and Brinkman) on an example of mathematical simulation of transient natural convection in a porous vertical cylindrical cavity with heat-conducting shell of finite thickness in conditions of convective cooling from an environment has been carried out. The boundary-value problem of mathematical physics formulated in dimensionless variables such as stream function, vorticity and temperature has been solved by implicit finite difference method. The presented verification results validate used numerical approach and also confirm that the solution is not dependent on the mesh size. Features of the conjugate heat transfer problems with considered models of porous medium have been determined.

Keywords: conjugate heat transfer, natural convection, Darcy–Boussinesq and Brinkman–Boussinesq approximations, porous vertical cylindrical cavity, transient regime, numerical simulation

Citation in English: Trifonova T.A., Sheremet M.A. Comparative analysis of Darcy and Brinkman models at studying of transient conjugate natural convection in a porous cylindrical cavity // Computer Research and Modeling, 2013, vol. 5, no. 4, pp. 623-634

DOI: 10.20537/2076-7633-2013-5-4-623-634

URL: http://crm-en.ics.org.ru/journal/article/2071/

Computer Research and Modeling - 2013 - Issue 4

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