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空化可压缩流动空穴溃灭激波特性研究

王畅畅 王国玉 黄彪

王畅畅, 王国玉, 黄彪. 空化可压缩流动空穴溃灭激波特性研究[J]. 力学学报, 2018, 50(5): 990-1002. doi: 10.6052/0459-1879-18-215
引用本文: 王畅畅, 王国玉, 黄彪. 空化可压缩流动空穴溃灭激波特性研究[J]. 力学学报, 2018, 50(5): 990-1002. doi: 10.6052/0459-1879-18-215
Wang Changchang, Wang Guoyu, Huang Biao. NUMERICAL SIMULATION OF SHOCK WAVE DYNAMICS IN TRANSIENT TURBULENT CAVITATING FLOWS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2018, 50(5): 990-1002. doi: 10.6052/0459-1879-18-215
Citation: Wang Changchang, Wang Guoyu, Huang Biao. NUMERICAL SIMULATION OF SHOCK WAVE DYNAMICS IN TRANSIENT TURBULENT CAVITATING FLOWS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2018, 50(5): 990-1002. doi: 10.6052/0459-1879-18-215

空化可压缩流动空穴溃灭激波特性研究

doi: 10.6052/0459-1879-18-215
基金项目: 1)国家自然科学基金(91752105,51679005),北京市自然科学基金(3172029) 和北京理工大学研究生科技创新活动专项计划(2017CX10017) 资助项目.
详细信息
    作者简介:

    2)黄彪,副教授,主要研究方向:高速水动力学.E-mail:huangbiao@bit.edu.cn

    通讯作者:

    黄彪

  • 中图分类号: O352;

NUMERICAL SIMULATION OF SHOCK WAVE DYNAMICS IN TRANSIENT TURBULENT CAVITATING FLOWS

  • 摘要: 为深入研究空化可压缩流动中空泡/空泡团溃灭过程中激波产生、传播及其与空穴相互作用规律,本文采用数值模拟方法对空化可压缩流动空穴溃灭激波特性展开了研究.数值计算基于OpenFOAM开源程序,综合考虑蒸汽相和液相的压缩性,通过在原无相变两相可压缩求解器的控制方程中耦合模拟空化汽液相间质量交换的源项,实现了对空化流动的非定常可压缩计算.利用上述考虑汽/液相可压缩性的空化流动求解器,对周期性云状空化流动进行了数值模拟,并重点研究了空穴溃灭激波特性.结果表明:上述数值计算方法可以准确捕捉到空穴非定常演化过程及大尺度脱落空泡云团溃灭激波现象,大尺度脱落空泡云团溃灭过程分为3个阶段:(1) U型空泡团形成; (2) U型空泡团头部溃灭; (3) U型空泡团腿部溃灭.在U 型空泡团腿部溃灭瞬间,观察到激波产生,并向上游和下游传播,向上游传播的激波与空穴相互作用,导致水翼吸力面新生的附着型片状空穴回缩,直至完全溃灭.并且空穴溃灭激波存在回弹现象, 抑制了下一周期的空化发展.

     

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出版历程
  • 收稿日期:  2018-07-02
  • 刊出日期:  2018-09-18

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