Industry applications of advanced flow diagnostics experience in the BAE Systems ground effects rig

P. Curtis

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Industry applications of advanced flow diagnostics experience in the BAE Systems ground effects rig

机译：BAE Systems地面效应装置中先进的流量诊断经验的行业应用

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This paper reviews some of the work performed on the ground effects rig at BAE Systems in Warton, the now unique facility for modelling dynamic vertical landings and measuring hot gas ingestion. The paper discusses the flow diagnostic tools which have been used in recent times, up to the complexity of 3D P1V, and uses examples from the F-35 JSF programme to illustrate these. The paper hopefully demonstrates the difficulties of using these tools, as well as the benefits they can bring to a development programme. The ground effects rig is a facility designed to measure temperature rise in aircraft intakes during vertical manoeuvres close to the ground. It is a complex facility that comes as close as possible to accurately modelling the flowfields around an aircraft moving both vertically and horizontally near the ground, with the ability to model dynamic pitch and roll at the same time. Standard instrumentation for the models consists of rapid response thermocouples mounted in a rake at the engine face. 45 thermocouples of 0·05mm diameter with a time constant of about 10ms are used. Although, with its standard instrumentation, the rig can measure how much hot gas gets to the engine face, it doesn't show how it got there, or where it came from, which is the knowledge required to improve the design. Hence there is a need for flow diagnostics.

机译：本文回顾了沃顿BAE系统公司在地面效应装置上进行的一些工作，该公司现在是用于对动态垂直着陆进行建模和测量热气摄入量的独特设施。本文讨论了直到3D P1V的复杂性最近才使用的流诊断工具，并使用F-35 JSF程序中的示例进行说明。该论文有望说明使用这些工具的困难，以及它们可以为开发计划带来的好处。地面效应装置是一种用于在接近地面的垂直操纵过程中测量飞机进气口温度升高的设备。它是一个复杂的设施，它尽可能地精确地模拟在地面附近垂直和水平移动的飞机周围的流场，并能够同时模拟动态俯仰和侧倾。这些模型的标准仪器包括快速响应热电偶，该热电偶安装在发动机侧的耙中。使用了45个直径为0·05mm的热电偶，其时间常数约为10ms。尽管使用标准仪器，该钻机可以测量有多少热气进入发动机工作面，但它并未显示出它是如何到达那里或来自哪里的，这是改进设计所需的知识。因此，需要流量诊断。

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《The Aeronautical Journal》 |2005年第1093期|p.119-127|共9页
作者
P. Curtis;
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BAE Systems Farnborough, UK;

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正文语种 eng
中图分类航空;
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Industry applications of advanced flow diagnostics experience in the BAE Systems ground effects rig

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