实验流体力学2013，Vol.27Issue(1)：83-87,5.
引射器混合室优化技术初步研究
Primary investigation of the optimization for the ejector mixing chamber
陈吉明 1廖达雄 1王海峰 1刘卫红1
作者信息
- 1. 中国空气动力研究与发展中心空气动力学国家重点实验室,四川绵阳 621000
- 折叠
摘要
Abstract
Optimization of the ejector mixing chamber plays an important role in design of the supersonic ejector. This paper introduces some experimental and numerical results of an experimental supersonic ejector under normal temperature conditions. Several factors affecting the ejecting performance are comparatively analyzed, including different lengths of the contraction, different diameters and lengths of the constant area section and different types of the ejector nozzle. Preliminary study shows that the supersonic ejector efficiency can be greatly improved by means of setting the multi-nozzle ejector. The small diameter of the constant area section can bring good ejecting performance. The length of the contraction affects the mixing performance of the active and passive flows. The length of the constant area section affects the start-up performance. So the design of the mixing chamber should be done according to the type of the ejector.
关键词
引射器/混合室/数值模拟/优化设计/试验研究Key words
ejector/mixing chamber/numerical simulation/design optimization/test investigation分类
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陈吉明,廖达雄,王海峰,刘卫红..引射器混合室优化技术初步研究[J].实验流体力学,2013,27(1):83-87,5.
