Inviscid and viscous flow modelling of complex aircraft configurations using the CFD simulation system sauna
Abstract
This paper is concerned with the flow modelling capabilities of an advanced CFD simulation system known by the acronym SAUNA. This system is aimed primarily at complex aircraft configurations and possesses a unique grid generation strategy in its use of block-structured, unstructured or hybrid grids, depending on the geometric complexity of the addressed configuration. The main focus of the paper is in demonstrating the recently developed multi-grid, block-structured grid, viscous flow capability of SAUNA, through its evaluation on a number of configurations. Inviscid predictions are also presented, both as a means of interpreting the viscous results and with a view to showing more completely the capabilities of SAUNA. It is shown that accuracy and flexibility are combined in an efficient manner, thus demonstrating the value of SAUNA in aerodynamic design.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- April 1994
- Bibcode:
- 1994STIN...9519777P
- Keywords:
-
- Aircraft Configurations;
- Computational Fluid Dynamics;
- Grid Generation (Mathematics);
- Inviscid Flow;
- Multigrid Methods;
- Navier-Stokes Equation;
- Turbulence Models;
- Viscous Flow;
- Algorithms;
- Computerized Simulation;
- Euler Equations Of Motion;
- Fluid Mechanics and Heat Transfer