Natural Convection Heat Transfer from a Plane Wall to Thermally Stratified Environment
Main Article Content
Abstract
The effect of linear thermal stratification in stable stationary ambient fluid on free convective flow of a viscous incompressible fluid along a plane wall is numerically investigated in the present work. The governing equations of continuity, momentum and energy are solved numerically using finite difference method with Alternating Direct implicit Scheme. The velocity, temperature distributions
and the Nusselt number are discussed numerically for various values of physical parameters and presented through graphs. ANSYS program also used to solve the problem. The results show that the effect of stratification parameter is marginalized with the increase in Prandtl number, and the increase in Grashof number does not practically vary the effect of stratification parameter.
Article Details
Section
How to Cite
References
Ahmed, T.E. (2005) "Transient natural convection heat transfer from a plane wall to a thermally stratified media" MSc. Thesis, University of Technology, Baghdad.
Angirasa, D. and Srinivasan, J. (1992) "Natural convection heat transfer from an isothermal vertical surface to a stable thermal stratified fluid" Journal of Heat Transfer Vol.114/917
Cheesewright, R. (1967) "Natural convection from a plane vertical surface in nonisothermal surroundings" Int. J. Heat and Mass Trans. Volume 10, Issue 12, Pages 1847-1859.
Chen, C.C and Eichhorn, R. (1976) "Natural convection from a vertical surface to a thermally stratified fluid" ASME Journal of Heat Transfer Vol.98, P.446-451.
Deka, Rudra Kt and Neog, Bhaben Ch. (2009)" Unsteady natural convection flow past an accelerated vertical plate in a thermally stratified fluid" Theoret. Appl. Mech., Vol.36, No.4, PP. 261-274, Belgrade.
Isak, Anuar, Nazar, Roslinda and Pop, Ioan. (2008) "Mixed convection boundary layer flow adjacent to a vertical surface embedded in a stratified medium" Int. J. Heat and Mass Trans.vol. 51, PP. 3693-3695.
Jaluria, Y. (1980) "Natural convection heat and mass transfer" Pergamon Press.
Jaluria, Y. and Himasekhar, K. (1983) "buoyancy-induced two-dimensional vertical flows in a thermally stratified environment" Computers & Fluids Vol. 11, Issue 1, Page 39-49.
Kulkarni, A. K., Jacobs, H. R. and Hwang, J. J. (1987) " Similarity solution for natural convection flow over an isothermal vertical wall immersed in thermally stratified medium " Int. J. Heat and Mass Transfer Volume 30, Issue 4, PP 691-698
Pantokratoras, A. (2003) "A note on the Nusselt number adjacent to a vertical isothermal plate immersed in thermally stratified water at low temperatures" Int. J. Heat and Fluid Flow Vol. 32, Issue 2, Pages 278-281.
Saha, S.C, Hossain, M.A. (2004) " Natural convection flow with combined buoyancy effects due to thermal and mass diffusion in a thermally stratified media " Nonlinear Analysis: Modeling and Control, Vol. 9, No. 1, PP. 89–102.
Singh, Gurminder, Sharma, P.R and Chamkha, A.J. (2010) "Effect of thermally stratified ambient fluid on MHD convective flow along a moving non-isothermal vertical plate" international of Physical Science Vol.5 (3), PP.208-215.
Tanny, J. and Cohen, J. (1998) "The mean temperature field of a buoyancy induced boundary layer adjacent to a vertical plate immersed in a stratified medium" Int. J. Heat and Mass Transfer Volume 41, Issue 14, PP.2125-2130.
Yang, K.T, Novotny, J.L and Cheng, Y.S. (1972) "Laminar free convection from a nonisothermal plate immersed in a temperature stratified medium” Int. j. Heat and Mass Transfer, Vol. 15, PP. 1097–1109.