Abstract

The rate of entropy generation, S˙′G[W/mK], is examined both theoretically and numerically for forced and mixed convection in a rectangular duct heated at the bottom. Under fully-developed flow conditions S˙′G is expressed in terms of relevant non-dimensional hydrodynamic and thermal parameters. Numerically, it is demonstrated that S˙′G is a single, effective parameter to examine both thermal and hydrodynamic fields and their variations.

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