Numerical Definition Document for the ISNaS Time-Explicit Flow Solver. MemorandumNo. 934

摘要

For compressible viscous flow, two applications will be realized in the ISNaSproject during the period 1987-1991. The first application is the flow about a multi-element airfoil, and the second is the flow about a wing/body transport combination. The document describes the way in which the Navier-Stokes equations are solved numerically. A detailed description of the necessary discretized equations is given. Although part of the work is also useful for the wing/body application, the emphasis is laid on the first application, and thus deals with a time-explicit flow solver for a three-dimensional geometry. A stability analysis, which gives the maximum allowable time step for this time-explicit method, is presented.