Abstract
A theoretical study of the effect of variable fluid properties on the classical Blasius and Sakiadis flow is presented in this paper. The investigation concerns engine oil, water and air taking into account the variation of their physical properties with temperature. The results are obtained with the numerical simulation of the governing equations and cover large temperature differences. Velocity and temperature profiles are presented, as well as values of wall shear stress and wall heat transfer, for a variety of temperatures between the plate and the ambient fluid. It is found that the variation of fluid properties and especially viscosity have a strong influence on the results. The results of oil and water are, in general, similar and are generalized to liquids whereas air results are different and are generalized to gases. Except of the new results found in the present work some inaccurate results existing in the literature have been identified.
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Pantokratoras, A. The Blasius and Sakiadis flow with variable fluid properties. Heat Mass Transfer 44, 1187–1198 (2008). https://doi.org/10.1007/s00231-007-0356-2
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DOI: https://doi.org/10.1007/s00231-007-0356-2