Equation-free multi-scale simulation of two-phase gas-liquid separation

被引：0

作者：

Yang, Chen ^{[1
]}

He, Hangxing ^{[1
]}

机构：

[1] Key Laboratory of Low-grade Energy Utilization Technologies and Systems of Ministry of Education, School of Power Engineering, Chongqing University, Chongqing

来源：

Huagong Xuebao/CIESC Journal | 2015年 / 66卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Coarse projective integration; Gas-liquid separation; Lattice Boltzmann method; Multiscale; Numerical simulation; Two-phase flow;

D O I：

10.11949/j.issn.0438-1157.20141678

中图分类号：

学科分类号：

摘要：

An equation-free multi-scale method was proposed for simulating two-phase gas-liquid separation processes. The method took the lattice Boltzmann (LB) model as the meso-scopic simulator. Only a small amount of evolutionary steps were needed during the calculation, and then the results obtained from the meso-scopic simulator were reasonably extrapolated by second-order telescopic projection to predict the results of follow-up evolutionary steps quickly and precisely. Thus multi-scale simulation of two-phase gas-liquid separation processes could be done. The details of phase separation were presented by comparing the numerical simulation results in terms of coexistence curves and spurious currents. The results showed that the macro-scale characteristics of phase separation could be quickly and accurately reflected by the proposed multi-scale simulation method, proving the accuracy and efficiency of the proposed method. ©All Right Reserved

引用

页码：2031 / 2040

页数：9

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