Incompressible Navier-Stokes computations of rotating flows
Abstract
Flow through pump components, such as an inducer and an impeller, is efficiently simulated by solving the incompressible Navier-Stokes equations. The solution method is based on the pseudocompressibility approach and uses an implicit-upwind differencing scheme together with the Gauss-Seidel line relaxation method. Current computations use one-equation Baldwin-Barth turbulence model which is derived from a simplified form of the standard k-epsilon model equations. The resulting computer code is applied to the flow analysis inside a generic rocket engine pump inducer, a fuel pump impeller, and SSME high-pressure fuel turbopump impeller. Numerical results of inducer flow are compared with experimental measurements. Flow analyses at 80-, 100-, and 120-percent of design conditions are presented.
- Publication:
-
31st AIAA Aerospace Sciences Meeting and Exhibit
- Pub Date:
- January 1993
- Bibcode:
- 1993aiaa.meetQZ...K
- Keywords:
-
- Computational Fluid Dynamics;
- Fluid Flow;
- Launch Vehicles;
- Pump Impellers;
- Rotating Fluids;
- Turbine Pumps;
- Jacobi Matrix Method;
- Navier-Stokes Equation;
- Robustness (Mathematics);
- Turbulence Models;
- Upwind Schemes (Mathematics);
- Fluid Mechanics and Heat Transfer