Question: Model flow inside a pipe of diameter 1 cm and length (I/D=20) for the following conditions: 1- The fluid is air 2- Re,D=500 3-

Model flow inside a pipe of diameter 1 cm and length (I/D=20) for the following conditions: 1- The fluid is air 2- Re ,p =500

Model flow inside a pipe of diameter 1 cm and length (I/D=20) for the following conditions: 1- The fluid is air 2- Re,D=500 3- Constant wall temperature Tw=60C. 4- Tflow-In=23 C. Calculate: The hydrodynamics and thermal entrance length. Velocity and temperature profile at different stream wise locations Draw the hydraulic and the thermal boundary layer a long stream wise locations The local skin friction and the convection heat transfer coefficient as function of different downstream location Compare your results with the literature.

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