A patched-grid algorithm for the analysis of complex configurations with an implicit, upwind-biased Navier-Stokes solver is presented. Results from both a spatial-flux and a time-flux conservation appraoch to patching across zonal boundaries are presented. A generalized coordinate transformation with a biquadratic geometric element is used at the zonal interface in order to treat highly stretched viscous grids and arbitrarily-shaped zonal boundaries. Applications are made to the F-18 forebody-strake configuration at subsonic, high-alpha conditions. Computed surface flow patterns compare well with ground-based and flight-test results; the large effect of Reynolds number on the forebody flow-field is shown.
A patched-grid algorithm for complex configurations directed towards the F-18 aircraft
Algorithmus mit oertlichem Gitter zur Berechnung komplexer Stroemungsverhaeltnisse am F-18-Flugzeug
AIAA-Papers ; Jan ; 1-17
1989
17 Seiten, 9 Bilder, 19 Quellen
Conference paper
English
Aircraft Drag Extraction from Patched Grid Computations
AIAA | 2003
|IEEE | 2023
|AIAA-2003-3659 Aircraft Drag Extraction from Patched Grid Computations
British Library Conference Proceedings | 2003
|