Domain Computing Method Based on Partially-averaged Navier-Stokes Turbulence Model

doi:10.3969/j.issn.1000-1093.2021.01.011

Abstract

Abstract: A partially-averaged Navier-Stokes（PANS）method is proposed to calculate different regions of flow field with different values of f_k, which imposes the different turbulence models to be set at the same time. The proposed method is applied to simulate the single-phase flow around the two-dimensional square cylinder and the unsteady cavitating flows around Clark-y hydrofoil, respectively. The modified PANS model well predicts the pressure coefficient distributions on the surface of square cylinder and the velocity distribution at different sections of flow field. In addition, it can well capture the time evolutions of the cavities around the Clark-y hydrofoil and the fluctuation of lift coefficient of hydrofoil.

Key words: partially-averagedNavier-Stokesmodel, domaincomputing, flowaroundsquarecylinder, unsteadycavitatingflow

CLC Number:

TV131.3⁺2

LUO Qian， HU Changli. Domain Computing Method Based on Partially-averaged Navier-Stokes Turbulence Model[J]. Acta Armamentarii, 2021, 42(1): 100-107.

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