A vertex-based finite volume method for solving the three-dimensional compressible Reynolds-averaged Navier-Stokes equations is presented for calculating turbomachinery cascade flows. A discretization scheme for the viscous terms is proposed. This discretization scheme avoids a potential problem on kinked meshes. The Baldwin-Lomax algebraic turbulence model is used. The scheme is verified against laminar and turbulent flows over a flat plate. Perfect agreement is obtained with the Blasius solution for the laminar flow. Agreement with empirical solutions is also obtained for turbulent flows. Both two- and three-dimensional computations were carried out for a low pressure turbine cascade. Results are compared with inviscid solutions and experimental data. Predicted pressure distributions agree with experiments at both design and off-design conditions. Surface skin-friction distribution and velocity vectors in the flow field are also presented.
Multigrid Navier-Stokes calculations for three dimensional cascades
Mehrgitter Navier-Stokes Berechnungen von dreidimensionalen Schaufelgitterströmungen an Flugzeugturbinen
AIAA-Papers ; 1-15
1992
15 Seiten, 28 Bilder, 18 Quellen
Conference paper
English
Multigrid Navier-Stokes Calculations for Three-Dimensional Cascades
Online Contents | 1993
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