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Numerical Analysis of Flow and Heat Transfer at a Backward-Facing Step With an Obstacle Based on Lattice Boltzmann Method

Abstract : The Lattice Boltzmann method is actually considered as one of the simplest approach. The flow and heat transfer distribution in a duct containing a backward and an obstacle are studied for different geometric and physical parameters. The LBM is applied to solve the backward-facing step flow problems for an expansion ratio H/h = 2 in rectangular duct and to determine the effect of the obstacle on flow and heat transfer distribution. The obstacle is situated in the bottom wall of the duct. The effect of various obstacle lengths (0.5
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https://hal-uphf.archives-ouvertes.fr/hal-03439135
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Submitted on : Monday, November 22, 2021 - 10:15:26 AM
Last modification on : Tuesday, November 23, 2021 - 3:46:41 AM

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Insaf Mehrez, Ramla Gheith, Fethi Aloui, Sassi Ben Nasrallah. Numerical Analysis of Flow and Heat Transfer at a Backward-Facing Step With an Obstacle Based on Lattice Boltzmann Method. ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, Jul 2016, Washington, United States. ⟨10.1115/FEDSM2016-7915⟩. ⟨hal-03439135⟩

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