국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Numerical Simulation of a Hypersonic Non-equilibrium Flow
저자	Ryoji Takaki
Keyword	CFD; hypersonic flow; non-equilibrium flow
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001407.pdf?id=NALTR0001407
보고서번호	NAL TR-1407
발행년도	2000.06
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	Numerical simulations of a hypersonic flow with high temperature effect were carried out. Park's two temperature model and a seven species and eighteen finite rate chemical reactions model were used in order to take account of thermally and chemically nonequilibrium effects. AUSMDV scheme was applied for convective terms. An efficient numerical algorithm, LU-SGS scheme and a point implicit method for source terms were used for time integration. Numerical results of an axis-symmetric flow around a semi-sphere are presented and compared with experimental data. A grid convergency check is also performed. Results indicate that the flow behind the shock tends strongly toward a non-equilibrium flow.