Three-dimensional multigrid Navier-Stokes computations for turbomachinery applications
The fully three-dimensional, time-dependent compressible Navier-Stokes equations in cylindrical coordinates are presently used, in conjunction with the multistage Runge-Kutta numerical integration scheme for solution of the governing flow equations, to simulate complex flowfields within turbomechanical components whose pertinent effects encompass those of viscosity, compressibility, blade rotation, and tip clearance. Computed results are presented for selected cascades, emphasizing the code's capabilities in the accurate prediction of such features as airfoil loadings, exit flow angles, shocks, and secondary flows. Computations for several test cases have been performed on a Cray-YMP, using nearly 90,000 grid points. 18 refs.
- OSTI ID:
- 5426160
- Report Number(s):
- AIAA-Paper--89-2453; CONF-8907118--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
330103* -- Internal Combustion Engines-- Turbine
COMPRESSIBLE FLOW
CONFORMAL MAPPING
COORDINATES
DIFFERENTIAL EQUATIONS
ENGINES
EQUATIONS
FLUID FLOW
FLUID MECHANICS
GAS TURBINE ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
ITERATIVE METHODS
MAPPING
MECHANICS
MESH GENERATION
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
RUNGE-KUTTA METHOD
THREE-DIMENSIONAL CALCULATIONS
TIME DEPENDENCE
TOPOLOGICAL MAPPING
TRANSFORMATIONS
UNSTEADY FLOW