Computation of unsteady compressible flow through counter-rotating flat blade cascades
Abstract
A mesh-free finite difference method was developed to calculate the flow in counter-rotating turbine blade cascades. The method is equivalent to the finite element method, even for the most complicated geometries. Accuracy and stability of the method are demonstrated. The application to frictionless flow in the cascades is efficient and easy. The application domain ranges from the subcritical to far into transonic flow regimes. The results show variations in the flow condition, which lie partly in the boundary layer critical domain.
- Publication:
-
In its Thermodyn. and Flow Mech. Problems in Aircraft and Spacecract Devices: Summary of Work and Results for 1980
- Pub Date:
- 1982
- Bibcode:
- 1982tfmp.nasa..325F
- Keywords:
-
- Cascade Flow;
- Compressible Flow;
- Counter-Rotating Wheels;
- Unsteady Flow;
- Boundary Layer Flow;
- Finite Difference Theory;
- Transonic Flow;
- Turbomachine Blades;
- Fluid Mechanics and Heat Transfer