Numerical Study of the Effects of the Secondary Diaphragm and Contact Surface in Expansion Tubes

作     者：Kazuyuki Kage Katsuya Ishimatsu Toyoyasu Okubayashi 

作者机构：Department of Production Systems EngineeringOita University700 DannoharuOita870-1192JapanDepartment of Production Systems EngineeringOita University700 DannoharuOita870-1192JapanDepartment of Production Systems EngineeringOita University700 DannoharuOita870-1192Japan 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2004年第13卷第1期

页      面：30-33页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

主　　题：expansion tubes secondary diaphragm shock propagation contact surface 

摘      要：The interaction of the shock reflected at a secondary diaphragm with the primary contact in six cases, i.e. the strengths and shapes of the contact surface are different, were explored by numerical study. The influences of the strength and shape of the contact on the developing wave pattern and the quality of the test gas are illustrated by many kinds of figures (e.g. the time-distance diagrams of the acoustic impedance contours on the axis, the acoustic impedance contours, and the time histories of pilot and static pressures).