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Flow characteristic and aerodynamic performance in elliptic shape isolator at different back pressures
Author(s): WANG Wei-xing, LI Bo, GUO Rong-wei
Pages: 647-
653
Year: 2010
Issue:
3
Journal: Journal of Aerospace Power
Abstract: 在反压条件下,对椭圆形等直隔离段进行了全三维数值仿真研究.结果表明:在对称的几何条件和边界条件以及均匀来流条件下,当来流马赫数较小时,流场与激波串结构基本对称;当来流马赫数较大(大于2)时,流场与激波串结构出现明显不对称现象,并且随着来流马赫数增大,这种不对称现象加剧.椭圆形隔离段抗反压能力随着长短半轴比减小逐渐增强,出口马赫数和温升比基本不受长短半轴比影响.不同来流马赫数下,当隔离段承受最大反压...
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