A Quasi Three Dimensional Method for the Calculation of Transonic Flows in Turbomachines,
STUTTGART UNIV (GERMANY F R) INST FUER LUFTFAHRT-ANTRIEBE
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A procedure based on the iterative coupling of flow calculations on S1 blade-to-blade stream surfaces and a flow calculation on an S2 hub to tip stream surface is described. The solutions on S1 surfaces of revolution are obtained by a time marching method in finite volume form, whereas a finite difference method is used for the S2 calculation. The finite difference method uses a stream function formulation based on a passage averaging technique in order to account for non-axisymmetric flows, especially with shocks inside a blade row. Sample calculations of a single stage and a two stage compressor are presented and compared with measurements.
- Fluid Mechanics
- Hydraulic and Pneumatic Equipment