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THE NONLINEAR BEHAVIOR OF INTERFACE BETWEEN TWO-PHASE SHEAR FLOW WITH LARGE DENSITY RATIOS
  • ISSN号:1001-6058
  • 期刊名称:《水动力学研究与进展:英文版》
  • 时间:0
  • 分类:TV131.2[水利工程—水力学及河流动力学]
  • 作者机构:[1]Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China
  • 相关基金:Project supported by the National Natural Science Foundation of China (Grant No: 50371049) and Shanghai Leading Academic Discipline Project (Grant No:Y0103).
作者: DONG Yu-hong[1]
中文摘要:

为二维的不可压缩的流动的海军司烧方程被用来在在液体气体之间的接口的行为上调查雷纳兹数字和威伯数字的效果砍流动。在现在的学习,密度比率在约 10 ~ 0-10 ~ 被修理 3。在二个阶段之间的接口用 level-setapproach 被解决。基于气体,雷纳兹数字和威伯数字分别地作为 400-10000 and40-5000 被选择。在过去,模拟重现接口生长的振幅预言了由粘滞 Orr-Sommerfeld 线性理论,在大量密度和粘性比率上验证数字方法的适用性和精确性;现在,系带的非线性的发展伸长了的模拟表演组织并且导致了更重的液体的随后的决裂进落下。

英文摘要:

The Navier-Stokes equations for the two-dimensional incompressible flow are used to investigate the effects of the Reynolds number and the Weber number on the behavior of interface between liquid gas shear flow. In the present study, the density ratios are fixed at approximately 10^0-10^3. The interface between the two phases is resolved using the level-set approach. The Reynolds number and the Weber number, based on the gas, are selected as 400-10000 and 40-5000, respectively. In the past, simulations reappeared the amplitude of interface growth predicted by viscous Orr-Sommerfeld linear theory, verifying the applicability and accuracy of the numerical method over a wide range of density and viscosity ratios; now, the simulations show that the nonlinear development of ligament elongated structures and resulted in the subsequent breakup of the heavier fluid into drops.

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期刊信息
  • 《水动力学研究与进展:英文版》
  • 中国科技核心期刊
  • 主管单位:中国船舶重工集团公司
  • 主办单位:中国船舶科学研究中心
  • 主编:矣有生
  • 地址:上海高雄路185号
  • 邮编:200011
  • 邮箱:jhdzhou@aliyun.com
  • 电话:021-63150072
  • 国际标准刊号:ISSN:1001-6058
  • 国内统一刊号:ISSN:31-1563/T
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:427