Topological structures and aerodynamic characteristic analysis of hypersonic flow over HTV-type aircraft
- Paper number
IAC-11,C2,7,14,x10084
- Author
Dr. Feng Liu, College of Aerospace and Materials Engineering, National University of Defense Technology, China
- Coauthor
Prof. Hua Li, National University of Defense Technology, China
- Coauthor
Dr. Guo-hao DING, National University of Defense Technology, China
- Coauthor
Dr. Sha Pan, National University of Defense Technology, China
- Coauthor
Dr. Zhengyu Tian, College of Aerospace and Materials Engineering, National University of Defense Technology, China
- Year
2011
- Abstract
The hypersonic viscous flow over HTV-type aircraft was parallel simulated by N-S equations using high order spectral volume scheme with automatic generation of unstructured hybrid viscous grid. In grid generation, a new type hybrid viscous grid generation algorithm named AGHUV was established. In spatial discretization, all type of grids were subdivide into tetrahedron to satisfy the high order spectral volume scheme. The topological structures of hypersonic flow-field based on the limiting streamline of surface and sectional flow patterns perpendicular to the body axis were analyzed. The results show that with angle of attack increasing from 0o to 20o, the structure of limiting streamline of leeward surface changes from non-separating to open separating. In the aerodynamic characteristics, the three-channel coupling effect is very significant , which must be taken into account in the aircraft control design.
- Abstract document
- Manuscript document
(absent)