| 基于高温燃气引射的引射器设计与实验研究 |
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| 引用本文： | 王海锋,徐大川,赵芳,陈志强,任泽斌,史煜.基于高温燃气引射的引射器设计与实验研究[J].实验流体力学,2020,34(5):50-56. |
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| 作者姓名： | 王海锋 徐大川 赵芳 陈志强 任泽斌 史煜 |
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| 作者单位： | 1.空气动力学国家重点试验室, 四川 绵阳 621000 |
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| 摘 要： | 结合气体热力学理论和等压引射器设计理论方法，提出了高温燃气热力学参数计算方法，研制了基于高温燃气引射的超声速引射器试验平台。通过引射器与燃气发生器的对接实验，研究了零引射和被引射气流引射两种状态下的工作性能以及引射气流温度变化对工作性能的影响。实验结果表明:被引射气流流量360 g/s时，入口总压达到3.89 kPa，优于设计指标4 kPa；引射气流温度在低于设计值100 K范围内的变化对引射器的工作性能不会造成影响。实验验证了基于高温燃气引射的超声速引射器性能计算分析与工程设计方法的可靠性，相关研究结果为燃气发生器参数优化提供了指导性建议。
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| 关 键 词： | 超声速 引射器 燃气发生器 零引射 被引射气流 |
| 收稿时间： | 2019-05-04 |
Design and experimental investigation of ejector based on high temperature gas ejection |
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| Affiliation: | 1.State Key Laboratory of Aerodynamics, Mianyang Sichuan 621000, China2.Facility Design and Instrumentation Institute of China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China |
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| Abstract: | Combining the gas thermodynamics with the isobaric ejector design theory, the calculation method of thermodynamic parameters of high temperature gas is presented, and the ejector design scheme based on the high temperature gas ejection is proposed. Through the docking experiment between the ejector and the gas generator, the working performance of zero injection and secondary flow are studied, and the influence of temperature change of ejected gas flow on the working performance are also studied. The experimental results show that the total inlet pressure can reach 3.89 kPa with the secondary flow at 360 g/s, and the variation of the ejector gas temperature within 100 K below the design point has no effect on the ejector performance, which verifies the reliability of performance calculation analysis and engineering design method of the supersonic ejector based on high temperature gas injection, and the relevant research results provide guidance suggestions for parameter optimization of the gas generator. |
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