TWO-DIMENSIONAL DISCONTINOUS GALERKIN SIMULATIONS OF CRYPTO-STEADY SUPERSONIC PRESSURE EXCHANGE

被引：0
|
作者：
Wang, Junfeng [1 ]
Liang, Chunlei [1 ]
Garris, Charles A. [1 ]
机构：
[1] George Washington Univ, Dept Mech & Aerosp Engn, Washington, DC 20052 USA
来源：
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2011, VOL 4, PTS A AND B | 2012年
关键词：
FINITE-ELEMENT-METHOD; CONSERVATION-LAWS; SCHEMES; SYSTEMS;
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper reports the development of a third-order discontinuous Galerkin (DG) method for supersonic inviscid flow on a moving grid, as well as simulations of a simple model of crypto-steady supersonic pressure exchange (CSSPE) by solving 2D inviscid Euler equations. A total variation bounded (TVB) limiter is implemented for shock capturing. The third-order DG method is firstly validated using a case of supersonic vortex flow. Subsequently, the method is successfully employed to predict the crypto-steady supersonic flat-plate flow under various pressure ratios. In particular, at high pressure ratios between primary gas and secondary gas, a detached shock away from the trailing edge of the flat plate is accurately predicted. This study is our first step in approaching to developing a 3D numerical tool and modeling a novel pressure-exchange ejector.
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页码：461 / 470
页数：10
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