| 两类方法处理两相流表面张力的比较研究 |
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| 引用本文： | 倪明玖,李忠伟.两类方法处理两相流表面张力的比较研究[J].工程热物理学报,2009,30(12). |
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| 作者姓名： | 倪明玖 李忠伟 |
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| 作者单位： | 中国科学院研究生院,物理科学学院,北京,100049 |
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| 基金项目： | 中国科学院百人计划项目资助，自然科学基金资助 |
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| 摘 要： | 本文针对含有表面张力为源项的不可压 Navier-Stokes 方程,在非交错网格下比较研究了两类处理源项的Projection 方法.并比较研究了网格中心点处,压力梯度和表面张力的两种不同计算技术.表面张力通过 CSF(ContinuousSurface Force) 模型来计算.文中对一初始处于静止状态无外力作用的液滴进行模拟,通过分析虚假流速和压力分布来讨论各方法的优缺点.
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| 关 键 词： | 表面张力 压力梯度 Projection方法 CSF模型 |
COMPARISON BETWEEN TWO ALGORITHMS FOR CALCULATION OF THE SURFACE TENSION |
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| NI Ming-Jiu,LI Zhong-Wei.COMPARISON BETWEEN TWO ALGORITHMS FOR CALCULATION OF THE SURFACE TENSION[J].Journal of Engineering Thermophysics,2009,30(12). |
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| Authors: | NI Ming-Jiu LI Zhong-Wei |
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| Institution: | NI Ming-Jiu LI Zhong-Wei (College of Physical Sciences,Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | A comparison between two algorithms is conducted with a collocated mesh for incompressible Navier-Stokes equations with the surface tension as a source term.Two different techniques are employed for calculation of the pressure gradient and the continuous surface tension.For an initial static bubble without gravity,the spurious currents and pressure distribution are shown to illustrate the differences between the algorithms for treatment of the source term and between the techniques for calculation of the pr... |
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| Keywords: | surface tension pressure gradient projection method CSF model |
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