气液两相流曲面重构改进算法研究

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关键词:界面重构;曲面重构;气液两相流
中图分类号:O351.2文献标志码:A
DOI:10.7652/xjtuxb202507020 文章编号:0253-987X(2025)07-0202-12
Research on Improved Algorithm for Surface Reconstruction of Gas-Liquid Two-Phase Flow
GONG Junhua1 ,DONG Jing²,CHEN Yujie³,SUN Dongliang 3 YU Bo 4 ,SHI Guoyun5,CHEN Bin1
(1.StateKeyLaboratoryof MultiphaseFlowinPower Engineering,Xi'anJiaotong University,Xi'an710049,China; 2. Shanghai Energy Construction Engineering Design &.Research Co.,Ltd.,Shanghai 2Ol3oo,China; 3.Schoolof Mechanical Engineering,Beijing Instituteof Petrochemical Technology,Beijing lO2617,China; 4.School of Petroleum Engineering,YangtzeUniversity,Wuhan 43oloo,China; 5.Kunlun Digital Intelligence TechnologyCompany,Beijinglo2266,China)
Abstract:To address the issues of empiricism,accuracy loss,and repeated calculation of interface heights caused by the piecewise approximation strategy in interface reconstruction and the volume of fluid equation solving using the circle-based interface reconstruction (CIR) algorithm, an integration circle-based interface reconstruction (ICIR) algorithm is proposed. This algorithm employs a series of procesing strategies to achieve volume fraction solutions based on integration,effectively avoiding empirical interface segmentation and repeated solving of interface heights in each segment. Test results indicate that in a static test involving the random reconstruction of 1 000 (20 circular interfaces,the ICIR algorithm improves reconstruction accuracy by 7.71% compared to the CIR algorithm,with an acceleration ratio of 6.78 for solving the interface equation. In the horizontal motion test of a simple vapor bubble and the complex time-reversed single-vortex test, the ICIR algorithm enhances accuracy by 3.96% and 13.09% ,respectively,while computational efficiency improves by 40.88% and 68.31% . Overall, the ICIR algorithm significantly boosts computational efficiency and enhances the accuracy of interface reconstruction.
Keywords: interface reconstruction;curved interface reconstruction; gas-liquid two-phase flow
两相流现象广泛存在于自然界和工业生产中,如油气集输管道中的油水两相流[1-2]、反应器的汽泡运动[3]、地热井筒中蒸汽与水的混合流动[4等。(剩余16875字)