Integration Of The Forward Fuselage / Inlet Flow Field Numerical Simulation

Since 1970s, Computational Fluid Dynamics(CFD), used as a key technique of the national defense and the civil industry development, has been attached importance to the international community and made important progress. In this dissertation, integrated numerical methods of forebody-inlet assembly and relevant software are developed. The main contributions are follows:1. On detailed study of the central difference finite volume method proposed by Jameson, discrete formulae of 3-D Euler equations and N-S equations are presented. Codes for grid generation and flow analysis are improved to fit needs of computation.2. This dissertation develops the integrated computation of flow around forebody-inlet assembly using Euler/N-S equations' grid patched computation programs. Numerical simulation of an aircraft obtains reasonable results for mach from 1.4 to 2.0.3. During numerical simulation of flow by CFD, a heap of discrete data we get must be changed to visible figure in order to embody the meaning of the data fully. The visualization of grids and computation results is accomplished in this dissertation by using Visual C++ 6.0 under Windows operation system . The corresponding software provides friendly user interface.