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On equations of state in pseudo-potential multiphase lattice Boltzmann model with large density ratio

机译：具有大密度比的伪电势多相晶格Boltzmann模型中的状态方程

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摘要

In this paper, a single-component pseudo-potential model is analyzed by modifying corresponding equation of state. Simulation results show that with the modified vdW equation, this model is capable to simulate the multiphase flow with greater range of density ratio than other existing multiphase models and some drawbacks of pseudo-potential model such as large spurious currents are avoided as well. Besides, the influences of the modified method on surface tension are studied. Also, two other typical equations of state are employed, and the simulation results show that both of them work very well under any characteristic temperature and the greatest density ratio could be up to 10~9.
机译：在本文中，通过修改相应的状态方程来分析单分量伪电势模型。仿真结果表明，利用改进的vdW方程，该模型能够模拟比其他现有多相模型更大的密度比范围的多相流动，并且还避免了伪电位模型的一些缺点，例如大的杂散电流。此外，研究了改进方法对表面张力的影响。此外，还使用了另外两个典型的状态方程，仿真结果表明它们在任何特征温度下都可以很好地工作，最大密度比可以达到10〜9。

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  • 作者

    Anjie Hu; Longjian Li; Sixu Chen; Quan Liao; Jianbang Zeng;

  • 作者单位

    Key Laboratory of low-grade Energy Utilization Technologies and Systems of Ministry of Education, Chongqing 400030, PR China;

    Key Laboratory of low-grade Energy Utilization Technologies and Systems of Ministry of Education, Chongqing 400030, PR China;

    Key Laboratory of low-grade Energy Utilization Technologies and Systems of Ministry of Education, Chongqing 400030, PR China;

    Key Laboratory of low-grade Energy Utilization Technologies and Systems of Ministry of Education, Chongqing 400030, PR China;

    Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Science, Guangzhou 510640, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Lattice Boltzmann model; Multiphase; Pseudo-potential model; Large density ratio;

    机译：格子Boltzmann模型;多相伪势模型;大密度比;

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