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| The effect of different interface capture methods on the simulation accuracy of droplet deformation under electric field |
| Received:May 19, 2021 Revised:September 10, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20210519003 |
| KeyWord:electrohydrodynamics VOF model droplet deformation surface tension algorithm OpenFOAM |
| Author | Institution |
| 刘强 |
哈尔滨工业大学 能源科学与工程学院 空天热物理工业和信息化部重点实验室, 哈尔滨 |
| 吴健 |
哈尔滨工业大学 能源科学与工程学院 空天热物理工业和信息化部重点实验室, 哈尔滨 |
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| Abstract: |
| Droplet’ s deformation under electric field is a basic research topic in Electrohydrodynamics.The accuracy of surface tension has a great influence on the simulation of droplet deformation.Based on the VOF model in OpenFOAM,we studied the effect of different phase update methods (MULES and isoAdvector algorithm) as well as different curvature calculation methods (phase fraction gradient and RDF function algorithm) on the simulation accuracy of droplet deformation under electric field.The results show that the isoAdvector algorithm requires lower mesh density than the MULES algorithm,but it generates higher error in surface tension calculation when coupled with phase fraction gradient algorithm.The simulation error of isoAdvector coupled RDF function algorithm is low,and it can deal with the droplet deformation both parallel and perpendicular to the electric field when using axisymmetric grids.The numerical results are in good agreement with the analytical solutions when using the isoAdvector coupled RDF function algorithm. |