Performance Optimization of X3R: A New Reflected Shock Tunnel Mode for the X3 Expansion Tube

S. Stennett, D. Gildfind, P. Jacobs, R. Morgan
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引用次数: 7

Abstract

Availability of reflected shock tunnels capable of testing large-scale models and producing long-duration test flows is currently limited. The X3R free-piston reflected shock tunnel is in the final stages of development as an alternate operating mode of the pre-existing X3 expansion tube at The University of Queensland. A set of analytical and numerical procedures have been developed to aid in optimization of new operating conditions. This paper summarizes the condition development process and provides details of three candidate Mach 7 operating conditions theoretically capable of generating at least 10 ms of test time for full-scale scramjet engine testing. The facility’s atypical geometry, arising from its original design as an expansion tube, and the required compromises made during condition development are discussed.
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X3R膨胀管性能优化:一种新的反射激波隧道模式
目前,能够测试大型模型和产生长时间测试流的反射激波隧道的可用性有限。X3R自由活塞反射激波隧道是昆士兰大学现有X3膨胀管的替代工作模式,目前正处于开发的最后阶段。为了帮助优化新的操作条件,已经开发了一套分析和数值程序。本文总结了条件的发展过程,并提供了理论上能够产生至少10ms试验时间的三种候选马赫7工作条件的详细信息,用于全尺寸超燃冲压发动机试验。该设施的非典型几何形状源于其最初的膨胀管设计,以及在条件开发过程中需要做出的妥协。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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