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heat Transfer and MultiphysicsAnalysis 2011 Alex GrishinMAE 323 lecture 8: heat Transfer and Multiphysics1Heat Transfer AnalysisHeat Transfer and MultiphysicsAnalysis 2011 Alex GrishinMAE 323 lecture 8: heat Transfer and Multiphysics2 In engineering applications, heat is generally transferred from one location to another and between bodies. This Transfer is driven by differences in temperature (a temperature gradient) and goes from locations of high temperature to those with low temperature. These temperature differences, in turn, cause mechanical stresses and strains in bodies due to their coefficient of thermal expansion, (sometimes abbreviated CTE in engineering literature) The amount of heat Transfer is directly proportional to the size of the temperature gradient and the thermal resistanceof the material(s) involved In engineering applications, there are three basic mechanisms:1.

Heat Transfer and Multiphysics Analysis 2011 Alex Grishin MAE 323 Lecture 8: Heat Transfer and Multiphysics 6 Convection qi qo T∞∞∞∞ Ts •Convection is a mechanism of heat transfer that occurs due to the

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