计算物理 ›› 2012, Vol. 29 ›› Issue (5): 707-712.

• 论文 • 上一篇    下一篇

激波管中非平衡可凝结流的流动分析

赵家权1, 刘培启1, 刘凤霞1, 赵文静1, 王亮2, 胡大鹏1   

  1. 1. 大连理工大学化工机械系, 辽宁 大连 116023;
    2. 中油辽河工程有限公司, 辽宁 盘锦 124010
  • 收稿日期:2011-12-09 修回日期:2012-03-29 出版日期:2012-09-25 发布日期:2012-09-25
  • 作者简介:赵家权(1985-),男,湖北,博士生,从事气波膨胀制冷与冷凝分离技术原理及应用研究,E-mail:zhaojiaquan85@163.com
  • 基金资助:
    辽宁省教育厅科技研究项目(LS2010043);中央高校基本科研业务费(852002)资助项目

Analysis of Non-equilibrium Condensative Flow in a Shock Tube

ZHAO Jiaquan1, LIU Peiqi1, Liu Fengxia1, ZHAO Wenjing1, WANG Liang2, HU Dapeng1   

  1. 1. Department of Chemical Machinery, Dalian University of Technology, Dalian 116023, China;
    2. Liaohe Engineering Company, Panjin 124010, China
  • Received:2011-12-09 Revised:2012-03-29 Online:2012-09-25 Published:2012-09-25

摘要: 理论推导激波管中相变加热的临界加热量,得到一个显式计算临界加热量公式.该式可广泛用于湿蒸汽或纯蒸汽相变加热流动计算.结果表明,考虑相变加热的临界加热量要大于外部加热的临界加热量;热壅塞时会产生一道向上游传播的凝结激波,且凝结激波位置在液相质量分率开始增长点之前.采用AUSM格式数值求解激波管中湿空气的凝结流动,理论预测与数值计算吻合良好.

关键词: 凝结, 非定常, 激波管, 湿空气

Abstract: An explicit equation for critical quantity of heat in condensing flow in a shock tube was derived.The equation is of general validity and applies tO vapor flow with or without cagier gas.It shows that critical quantity of heat in internal heat flow for phase change is greater than external heat flow.As flow is choked thermally,a shock wave is generated and propagates upstream.A location where local static pressure begins to rises,which has long been regarded as onset of unsteady condensation in a steady supersonic nozzle,is not acceptable in shock tube flow.It is before the zone of condensation.Furthermore,a second-order AUSM scheme is applied tO two-dimensional compressible flow with condensation.Computation results reproduce integral predictions well.

Key words: condensation, unsteady, shock tube, moist air

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