Large eddy simulation of pseudo shock structure in a convergent–long divergent duct

نویسندگان

چکیده

In this paper, the Pseudo shock structure in a convergent–long divergent duct is investigated using large eddy simulation on basis of Smagorinsky–Lilly,​ Wall-Adapting Local Eddy-Viscosity and Algebraic Wall-Modeled LES subgrid models. The first objective study to apply different models predict Lambda form shocks system, while ultimate aim obtain further control behavior. To achieve these goals, dynamic grid adaption hybrid initialization techniques are applied under 3D investigation reduce numerical errors computational costs. results compared existing experimental data it found that WMLES model more accurate predictions when other Subsequently, influences section length with constant ratio outlet throat area and, effects discontinuity wall temperature flow physics investigated. indicate compressible affected by varying parameters. This then discussed provide deeper physical understanding mechanism motion.

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ژورنال

عنوان ژورنال: Computers & mathematics with applications

سال: 2021

ISSN: ['0898-1221', '1873-7668']

DOI: https://doi.org/10.1016/j.camwa.2019.10.017