Improvement of shock wave and compressibility effects in SST turbulence model

被引：0

作者：

Wang H. ^{[1
]}

Zeng Y. ^{[1
]}

Xiong D. ^{[1
]}

Yang Y. ^{[1
]}

Sun M. ^{[1
]}

机构：

[1] Laboratory of Science and Technology on Scramjet, College of Aerospace Science, National University of Defense Technology, Changsha

来源：

Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2024年 / 45卷 / 03期

基金：

中国国家自然科学基金;

关键词：

compressibility; shock wave; SST; structure characteristics; turbulence model;

D O I：

10.7527/S1000-6893.2023.28694

中图分类号：

学科分类号：

摘要：

Lack of consideration of certain important flow characteristics leads to obvious limitations in supersonic flow description by the standard SST turbulence model developed for incompressible flow. To improve the prediction accu⁃ racy of the SST model in complex supersonic flows involved in hypersonic propulsion systems，the shock wave and compressibility effects were introduced based on the flow characteristics. The shock/turbulent boundary layer discrimi⁃ nant function and compressible effect discriminant function were used to locate the region where the model parameters or modeling assumptions of the standard SST model failed，and the turbulence model was improved directionally. Ex⁃ amples of supersonic plate boundary layer flow，supersonic compression corner separation flow，supersonic complex shock train flow in an isolator and HIFiRE-2 supersonic internal flow were used for testing. The results show that the improved model has the same prediction ability as the standard SST model for turbulent boundary layers，but signifi⁃ cantly improves the prediction ability of shock-wave involved flows and adverse-pressure-gradient induced separating flows. © 2024 Chinese Society of Astronautics. All rights reserved.

引用

共 50 条

[1] MENTER F R., Two-equation eddy-viscosity turbulence models for engineering applications［J］, AIAA Journal, 32, 8, pp. 1598-1605, (1994)
[2] YAN C., Achievements and predicaments of CFD in aero⁃ nautics in past forty years［J］, Acta Aeronautica et Astro⁃ nautica Sinica, 43, 10, (2022)
[3] URZAY J., Supersonic combustion in air-breathing pro⁃ pulsion systems for hypersonic flight［J］, Annual Review of Fluid Mechanics, 50, pp. 593-627, (2018)
[4] PENG Y P，, BARZEGAR GERDROODBARY M，, SHEIKHOLESLAMI M，, Et al., Mixing enhancement of the multi hydrogen fuel jets by the backward step［J］, En⁃ ergy, 203, (2020)
[5] FAN X H, TANG Z G, WANG G, Et al., Review of low-frequency unsteadiness in shock wave/turbulent boundary layer interaction［J］, Acta Aeronautica et Astro⁃ nautica Sinica, 43, 1, (2022)
[6] WALTERS D K, LEYLEK J H., A simple and robust linear eddy-viscosity formulation for curved and rotating flows［J］, International Journal of Numerical Methods for Heat & Fluid Flow, 19, 6, pp. 745-776, (2009)
[7] DUCHAINE F., In⁃ vestigation of the concave curvature effect for an imping⁃ ing jet flow［J］, Physical Review Fluids, 2, 11, (2017)
[8] HUANG X B，, YANG W, Et al., Review on the sensitization of turbulence models to rotation/curvature and the application to rotating machinery［J］, Applied Mathematics and Computation, 341, pp. 46-69, (2019)
[9] BRADSHAW P., Turbulence modeling with application to turbomachinery［J］, Progress in Aerospace Sciences, 32, 6, pp. 575-624, (1996)
[10] MAO M L., Assessment of two turbulence models and some compressibility corrections for hypersonic compression corners by high-order differ⁃ ence schemes［J］, Chinese Journal of Aeronautics, 25, 1, pp. 25-32, (2012)

← 1 2 3 4 5 →