一种水冲压发动机推力测试方法

王晓欣; 党建军; 张学雷; 罗 凯

doi:10.11993/j.issn.1673-1948.2015.02.010

一种水冲压发动机推力测试方法

doi: 10.11993/j.issn.1673-1948.2015.02.010

西北工业大学航海学院, 陕西西安, 710072

详细信息

作者简介:
王晓欣(1990-), 女, 在读硕士, 主要研究方向为水下能源动力技术

中图分类号: TJ630.32
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- 被引次数: 0
出版历程
- 收稿日期: 2014-11-20
- 修回日期: 2014-12-29
- 刊出日期: 2015-04-20

A Thrust Test Method for Water Ramjet Engine

School of Marine Science and Technology, Northwestern Polytechnical University, Xian 710072, China

摘要

摘要: 为了探索适用于超空泡水下航行器水冲压发动机的推力测试方法, 采用理论分析与仿真计算相结合的研究手段, 建立了发动机喷管推力量值与流场参数之间的关联理论模型, 提出了推力量值的水下测试及估算方法,并针对具体的超空泡水下航行器外形及典型工况进行了流场数值计算, 利用所提的测试方法计算的推力值与设计值相比较, 论证了该方法的可行性。同时, 针对发动机喷管的过膨胀、欠膨胀工况进行独立分析, 获得了喷管出口截面的流场特征, 为测试方法中喷管出口截面处关键流场参数的测量提供可操作性和可实现性依据。
- 超空泡水下航行器 /
- 水冲压发动机 /
- 推力测试
Abstract: To explore a reasonable thrust test method for the water ramjet engine used in supercavitating underwater vehicle, an associative theoretical model between the engine nozzle thrust value and flow field parameters is established by means of theoretical analysis and simulation, and an underwater test and estimation method of the thrust value is proposed. Numerical calculation of the flow field is performed according to the shape and typical working conditions of a particular supercavitating vehicle. And the thrust value calculated with the proposed test method is compared with the design value to verify the feasibility of the proposed method. Furthermore, the conditions of over-expansion and under-expansion of the engine nozzle are analyzed, and the flow field characteristics of the nozzle outlet section are obtained, which may facilitate the key parameters measurement at the engine nozzle outlet section by the proposed method
- supercavitating underwater vehicle /
- water ramjet engine /
- thrust test

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参考文献(8)

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