Semi-unstructured-grid method for external viscous flow computations
Abstract
A new approach to compute external viscous flows around an airplane is discussed. A prismatic grid employed in the method is unstructured on the three-dimensional surface. This allows a solution-adaptive grid refinement for the accuracy improvement. The direction away from the body surface in the grid is structured so as to achieve efficient and accurate computations for high-Reynolds number viscous flows. The prismatic grid is generated by a marching-type procedure in which grid spacings are controlled by a variational method. The capability of the method is demonstrated by applying it to a viscous flow computation around an aircraft configuration.
- Publication:
-
6th National Symposium on Computational Fluid Dynamics
- Pub Date:
- September 1993
- Bibcode:
- 1993cfd..proc..507N
- Keywords:
-
- Compressible Flow;
- Computational Grids;
- Flow Distribution;
- Grid Generation (Mathematics);
- Numerical Flow Visualization;
- Three Dimensional Flow;
- Viscous Flow;
- Aircraft Models;
- Computational Fluid Dynamics;
- Computerized Simulation;
- Mathematical Models;
- Navier-Stokes Equation;
- Pressure Distribution;
- Shock Waves;
- Fluid Mechanics and Heat Transfer