Improved numerical methods for turbulent viscous recirculating flows
Abstract
The hybrid-upwind finite difference schemes employed in generally available combustor codes possess excessive numerical diffusion errors which preclude accurate quantative calculations. The present study has as its primary objective the identification and assessment of an improved solution algorithm as well as discretization schemes applicable to analysis of turbulent viscous recirculating flows. The assessment is carried out primarily in two dimensional/axisymetric geometries with a view to identifying an appropriate technique to be incorporated in a three-dimensional code.
- Publication:
-
Turbine Engine Hot Section Technology, 1985
- Pub Date:
- October 1985
- Bibcode:
- 1985tehs.nasa...87T
- Keywords:
-
- Combustion;
- Finite Difference Theory;
- Recirculative Fluid Flow;
- Turbulent Flow;
- Viscous Flow;
- Algorithms;
- Combustion Chambers;
- Computer Programs;
- Errors;
- Improvement;
- Fluid Mechanics and Heat Transfer