Multi-Dimensional, Inviscid Flux Reconstruction for Simulation of Hypersonic Heating on Tetrahedral Grids

摘要: The quality of simulated hypersonic stagnation region heating on tetrahedral meshes is investigated by using a three-dimensional, upwind reconstruction algorithm for the inviscid flux vector. Two test problems are investigated: flow over three-dimensional cylinder with special attention to uniformity solution in spanwise direction and sphere. cells used simulation derived from structured grid where cell faces bisected across diagonal resulting consistent pattern diagonals running biased otherwise symmetric domain. This known accentuate both shock capturing encountered conventional, quasi-one-dimensional algorithms. Therefore problem provides sensitive algorithmic effects heating. investigation believed be unique its focus rotated schemes grids. study attempts fill void left inability conventional (quasi-one-dimensional) approaches accurately simulate system. Results show significant improvement some penalty ringing at captured shock. Issues accuracy near peak shear location identified require further study.