NUMERICAL-SIMULATION OF 3-DIMENSIONAL TRANSONIC-FLOWS

The 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 multi‐tasking. The accuracy and stability of the composite grid scheme have been tested by numerically simulating the flow over an ellipsoid at an angle of attack and comparing the solution with a single‐grid solution. The flow field over a projectile at M = 0·96, 1·1 and 4° angle of attack has been computed using a fine grid and compared with experiment. Copyright © 1990 John Wiley & Sons, Ltd