Refurbishment and Testing Techniques in a Transonic Ludwieg Tunnel
Refurbishment and Testing Techniques in a Transonic Ludwieg Tunnel
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跨音速路德维格隧道的翻新和测试技术
DOI：
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发表时间：
2011
期刊：
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通讯作者：
D. Wilson
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文献类型：
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作者：
Thania S. Balcazar;Eric M. Braun;F. Lu;Duong K. Tran;D. Wilson
虽然低温风洞通常用于工业跨音速测试，但具有高电荷管压力的路德维格风洞也可以产生足够高的单位雷诺数来匹配夜间条件。简要介绍了跨音速路德维格隧道发展的时间表，展示了它是如何几乎被选中进行全面建设以补充国家跨音速设施的。最近进行了翻新，概述了UT阿灵顿独特的高雷诺数设施。目前，该设施的实验已经在半跨NACA 0012模型上使用多孔和固体墙的组合进行。讨论了这种高雷诺数、短持续时间设备的表面流显示技术。提出了未来的发展努力，以保持该设施适合当前的跨音速测试主题。
Although cryogenic wind tunnels are typically used in industry for transonic testing, Ludwieg tunnels with high charge tube pressures can also produce unit Reynolds numbers high enough to match inight conditions. A brief timeline of transonic Ludwieg tunnel development is presented that shows how it was nearly selected for full-scale construction to compliment the National Transonic Facility. Having recently been refurbished, an overview of the unique high Reynolds number facility at UT Arlington is presented. Currently, experiments with the facility have been conducted using a combination of porous and solid walls with a half-span NACA 0012 model. Surface ow visualization techniques are discussed for this high Reynolds number, short duration facility. Future development e orts are presented to keep the facility suitable for current transonic testing topics.