| 引用本文: | 张民庆,胡小平,刘泽军.结构参数对环型蒸汽引射器凝结流场的影响.[J].国防科技大学学报,2011,33(3):10-13,32.[点击复制] |
| ZHANG Minqin,HU Xiaoping,LIU Zejun.Effects of Configuration Parameters on Condensation Field of Annular Vapour Ejector[J].Journal of National University of Defense Technology,2011,33(3):10-13,32[点击复制] |
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| 结构参数对环型蒸汽引射器凝结流场的影响 |
| 张民庆1, 胡小平2, 刘泽军2 |
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(1.西北工业大学 航天学院，陕西 西安 710082;2.国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 建立了湿蒸汽凝结流动的理论模型，并利用经典实验结果对该模型进行了校验，验证了模型的准确性。在此基础上，对不同结构参数下环型引射流场内的水蒸气凝结流动过程进行了数值仿真。结果表明：适当地减小收敛比?、面积比α和增大二次喉道的长径比ι/d，可以提高总压恢复系数，改善引射器性能。 |
| 关键词: 环型蒸汽引射器 湿蒸汽 凝结 数值模拟 |
| DOI： |
| 投稿日期：2011-02-27 |
| 基金项目:国家安全重大基础研究项目(613102) |
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| Effects of Configuration Parameters on Condensation Field of Annular Vapour Ejector |
| ZHANG Minqin1, HU Xiaoping2, LIU Zejun2 |
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(1.College of Aerospace, North Western Polytechnic University, Xi'an 710082, China;2.College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The theoretical model for wet steam condensation flow was established. Furthermore, numerical simulation results with wet steam condensation flow model were coincident to the experimental data of C.A.Moses, which validated the credibility and accuracy of the model. Then, numerical simulation on condensation flow process was carried out under different configuration parameters. The results show that appropriately reducing the convergence ratio ?, area ratio and increasing the ι/d of secondary throat can increase the total pressure recovery coefficient，which improves the ejector performance. |
| Keywords: annular vapour ejector wet steam condensation numerical simulation |
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