Application of a Navier–Stokes Analysis to Flows Through Plane Cascades

[+] Author and Article Information
O. Schäfer, H.-H. Frühauf, B. Bauer, M. Guggolz

Universität Stuttgart, D-7000 Stuttgart 80

J. Eng. Gas Turbines Power 108(1), 103-111 (Jan 01, 1986) (9 pages) doi:10.1115/1.3239855 History: Received December 21, 1984; Online October 15, 2009


A newly developed method is used to compute a variety of laminar/turbulent, attached/separated flows through plane turbine or compressor cascades. The thin-layer or full Navier–Stokes equations are solved in a 2-D or quasi-2-D/quasi-3-D form taking into account variable axial velocity density ratio/cascade aspect ratio. The turbulence is modeled by the Baldwin–Lomax algebraic two-layer eddy viscosity approach. Improved mesh generation and discretization techniques are introduced. A fully implicit formulation of the flow problem is developed which ensures high stability and convergence. Numerous quantitative comparisons of viscous solutions with experiments and other existing solutions are performed to validate the method. First results on the applicability of the thin-layer assumption are included.

Copyright © 1986 by ASME
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