Three-dimensional rotational inviscid flow calculation
Abstract
Three dimensional rotational and/or transonic flow in turbomachinery is calculated by a fully explicit, time marching, corrected viscosity, finite volume method using a cylindrical coordinate system. Inside the passage, agreement between computed and measured values is fairly good, whereas the influence of the uniform outlet condition is greater downstream of the blade passage. Results confirm that the main secondary flows (horseshoe vortex and passage vortex) are an inviscid phenomenon caused by vorticity in the incoming flow, although the origin of this vorticity is the viscous endwall boundary layer.
- Publication:
-
In its Secondary Flows and Endwall Boundary Layers in Axial Turbomachines 69 p (SEE N84-29162 19-34
- Pub Date:
- 1984
- Bibcode:
- 1984sfeb.nasa.....A
- Keywords:
-
- Inviscid Flow;
- Rotating Fluids;
- Secondary Flow;
- Three Dimensional Flow;
- Time Marching;
- Turbomachinery;
- Finite Volume Method;
- Outlet Flow;
- Transonic Flow;
- Vortices;
- Fluid Mechanics and Heat Transfer