Abstract:
Mathematical modeling of gravitational heat convection in a closed rectangular domain with finite-thickness heat-conducting walls in the presence of a heat-releasing element with a constant heat-release intensity located at the base of the domain under conditions of convective-radiative heat transfer on one external boundary is performed. The influence of constitutive parameters (Grashof number and relative thermal conductivity) and flow unsteadiness on local thermohydrodynamic characteristics (streamlines and temperature field) and on the integral parameter (mean Nusselt number on the inner surface of the solid walls) is analyzed. Results obtained for two models of the heat source (with a constant temperature and with a constant heat-release intensity) are compared.
Keywords:
conjugate heat transfer, natural convection, heat-releasing element with a constant heat-release intensity, laminar flow regime.
Citation:
G. V. Kuznetsov, M. A. Sheremet, “Conjugate natural convection in a closed domain containing a heat-releasing element with a constant heat-release intensity”, Prikl. Mekh. Tekh. Fiz., 51:5 (2010), 95–110; J. Appl. Mech. Tech. Phys., 51:5 (2010), 699–712
\Bibitem{KuzShe10}
\by G.~V.~Kuznetsov, M.~A.~Sheremet
\paper Conjugate natural convection in a closed domain containing a heat-releasing element with a constant heat-release intensity
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2010
\vol 51
\issue 5
\pages 95--110
\mathnet{http://mi.mathnet.ru/pmtf1645}
\elib{https://elibrary.ru/item.asp?id=15234924}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2010
\vol 51
\issue 5
\pages 699--712
\crossref{https://doi.org/10.1007/s10808-010-0090-2}
Linking options:
https://www.mathnet.ru/eng/pmtf1645
https://www.mathnet.ru/eng/pmtf/v51/i5/p95
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N. S. Bondareva, M. A. Sheremet, “Numerical investigation of the two-dimensional natural convection inside the system based on phase change material with a source of volumetric heat generation”, Thermophys. Aeromech., 25:4 (2018), 525
Asis Giri, Swastika Patel, “Buoyancy Induced Convection From Biheaters in a Cavity: A Numerical Study”, Journal of Heat Transfer, 140:10 (2018)
A. Baïri, E. Zarco-Pernia, J.-M. García de María, “A review on natural convection in enclosures for engineering applications. The particular case of the parallelogrammic diode cavity”, Applied Thermal Engineering, 63:1 (2014), 304