Numerical simulation of three dimensional transonic flowsThe three-dimensional flow over a projectile has been computed using an implicit, approximately factored, partially flux-split algorithm. A simple composite grid scheme has been developed in which a single grid is partitioned into a series of smaller grids for applications which require an external large memory device such as the SSD of the CRAY X-MP/48, or multitasking. The accuracy and stability of the composite grid scheme has been tested by numerically simulating the flow over an ellipsoid at angle of attack and comparing the solution with a single grid solution. The flowfield over a projectile at M = 0.96 and 4 deg angle-of-attack has been computed using a fine grid, and compared with experiment.
Document ID
19870062312
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sahu, Jubaraj (U.S. Army, Ballistics Research Laboratories, Aberdeen Proving Ground MD, United States)
Steger, Joseph L. (NASA Ames Research Center Moffett Field, CA, United States)