空气动力学学报2019，Vol.37Issue(3)：419-425,7.DOI:10.7638/kqdlxxb-2016.0158
带有剪切应力输运性质的kGε两方程湍流模型构造与应用
An application of the shear stress transport lowGReynoldsGnumber k Gε turbulence model on turbulent flows
WANG Wei1 1ZHANG Yang 2CHEN Lili3
作者信息
- 1. AVIC The First Aircraft Institute ,Xi’an 710089,China
- 2. State Key Laboratory for Strength and Vibration of Mechanical Structures , School of Aerospace ,Xi’an Jiaotong University ,Xi’an 710089,China
- 3. AVIC The First Aircraft Institute ,Xi’an 710089,China
- 折叠
摘要
Abstract
The wall damping effect only can be recovered at the specific Reynolds number in traditional turbulence model due to the lack of considering the Reynolds effect.In order to overcome this drawback,a factor containing different turbulent Reynolds numbers is introduced into the wall damping function.In addition,the Bradshaw assumption is recalibrated by the DNS-data set,and then a smooth changing function is built to blended the two turbulent eddy viscosity coefficients.The two-equation turbulence model based on the recalibrated Bradshaw assumption can be converted to a shear-stress transport model.The new model is validated by a fully-developed turbulent flat plate,an airfoil with separated bubble,a two-dimension bump,and a wing-body with shock/wave boundary interaction,and the results are in good agreement with the experimental data.关键词
湍流模型/两方程模型/低雷诺数湍流模型/翼型Key words
turbulence model/two-equation turbulence model/low-Reynolds number turbulence model/airfoil分类
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WANG Wei1,ZHANG Yang,CHEN Lili..带有剪切应力输运性质的kGε两方程湍流模型构造与应用[J].空气动力学学报,2019,37(3):419-425,7.
