COMPUTATION OF 3-DIMENSIONAL VISCOUS LINEAR CASCADE FLOWS

被引:11
作者
CHOI, D
KNIGHT, CJ
机构
[1] Avco Research Lab Inc, United States
关键词
Fluid Dynamics--Computation - Heat Transfer--Prediction - Mathematical Techniques--Numerical Methods - Viscosity;
D O I
10.2514/3.10066
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A three-dimensional viscous cascade code has been developed for linear cascades with flat, parallel endwalls. It employs scalar implicit approximate factorization, a finite-volume formulation, second-order upwind differencing, and a two-equation q-ω turbulence model based on integration to the wall. A special form of the thin-layer approximation for the compressible Navier-Stokes equations is used which gives accurate skin-friction predictions on highly skewed meshes, now based on sheared H-grids. This code has been validated by considering three-dimensional viscous flows in L.S. Langston's large-scale turbine blade geometry. This validation includes three-dimensional heat-transfer predictions. Agreement with experiment is quite good.
引用
收藏
页码:1477 / 1482
页数:6
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