Numerical Investigation of Transonic Flow over the Release of A Store from A Delta Wing

摘要：

The Roes approximate Riemann solver with symmetric minmod limiter and the Jacobi-point iterative are applied to study the transonic flow over the release of a store from beneath a delta wing. In the Cartesian coordinate system, three-dimensional, unsteady Euler equations are solved. The Roes approximate Riemann solver is a flux difference scheme, and the spatial accuracy is first order. With the addition of symmetric minmod limiter, the spatial accuracy is upgraded to second order. The Jacobipoint iterative scheme is an implicit time marching scheme. To assess the accuracy of the present flow solver, the transonic flow around the RAE wing-body is investigated first After comparing the calculated pressure coefficient distributions at selected wing spanwise cross sections with those of experimental results, the satisfactory agreement between the present and experimental data is demonstrated. The accuracy of the present 3-D flow solver is confirmed. Then, the transonic flow over the release of a store from beneath a delta wing is investigated. The unsteady Mach number and pressure contours for the delta wing as well as store are demonstrated and discussed.

关键词： delta wing store transonic Euler

作者: Yang Shihying Hsieh Jinghsiang Cheng Wei

作者单位: Department of Aeronautical Engineering, National Formosa University, Yunlin 632,Taiwan Department of Aeronautical Engineering, National Formosa University,Yunlin 632, Taiwan Department of Aeronautical Engineering, National Formosa University, Yunlin 632, Taiwan

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 236-239

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）