TRANSONIC TURBULENT SEPARATED FLOW PREDICTIONS USING A 2-LAYER TURBULENCE MODEL

被引:6
作者
CHUANG, CC [1 ]
CHIENG, CC [1 ]
机构
[1] NATL TSING HUA UNIV,DEPT POWER MECH ENGN,HSINCHU 30043,TAIWAN
关键词
D O I
10.2514/3.11689
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A NAVIER-STOKES code with algebraic stress model/k-epsilon two-layer turbulence model has been developed to compute the transonic turbulent flow over an axisymmetric secant-ogive-cylinder-boattail (SOCBT) projectile with a flat base and over an axisymmetric bump. The implicit upwind-biased algorithm with Harten's second-order upwind total variation diminishing discretization is extended to solve the higher order turbulent transport equations of the two-layer model for high accuracy and acceptable convergent rate. Computed results are compared with both the experimental data and the results using other turbulence models. It is found that improvement of the prediction and anisotropic turbulent natures, in the recirculating region downstream of the strong shock-wave/boundary-layer interaction flow, can be obtained using the two-layer model of turbulence.
引用
收藏
页码:816 / 817
页数:2
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