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Contributions of the NASA Langley Transonic Dynamics Tunnel to Launch Vehicle and Spacecraft Development

机译:NASA兰利跨音速动力学隧道对运载火箭和航天器开发的贡献

摘要

The NASA Langley Transonic Dynamics Tunnel (TDT) has provided wind-tunnel experimental validation and research data for numerous launch vehicles and spacecraft throughout its forty year history. Most of these tests have dealt with some aspect of aeroelastic or unsteady-response testing, which is the primary purpose of the TDT facility. However, some space-related test programs that have not involved aeroelasticity have used the TDT to take advantage of specific characteristics of the wind-tunnel facility. In general. the heavy gas test medium, variable pressure, relatively high Reynolds number and large size of the TDT test section have made it the preferred facility for these tests. The space-related tests conducted in the TDT have been divided into five categories. These categories are ground wind loads, launch vehicle dynamics, atmospheric flight of space vehicles, atmospheric reentry. and planetary-probe testing. All known TDT tests of launch vehicles and spacecraft are discussed in this report. An attempt has been made to succinctly summarize each wind-tunnel test, or in the case of multiple. related tests, each wind-tunnel program. Most summaries include model program discussion, description of the physical wind-tunnel model, and some typical or significant test results. When available, references are presented to assist the reader in further pursuing information on the tests.
机译:NASA兰利跨音速动力隧道(TDT)在其40年的历史中,已为众多运载火箭和航天器提供了风洞实验验证和研究数据。这些测试大多数都涉及气动弹性或非稳态响应测试的某些方面,这是TDT设施的主要目的。但是,一些不涉及空气弹性的与空间相关的测试程序已使用TDT来利用风洞设施的特定特征。一般来说。重气体测试介质,可变压力,较高的雷诺数和TDT测试段的较大尺寸使其成为这些测试的首选设备。在TDT中进行的与空间有关的测试分为五类。这些类别是地面风荷载,运载火箭动力,航天器的大气飞行,大气折返。和行星探针测试。本报告讨论了运载火箭和航天器的所有已知的TDT测试。试图简要总结每个风洞测试,或者在多个情况下。相关测试,每个风洞程序。大多数摘要包括模型程序讨论,物理风洞模型的描述以及一些典型或重要的测试结果。如果可用,将提供参考资料,以帮助读者进一步寻求有关测试的信息。

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