| 界面捕捉中耦合Level-set与VOF算法 |
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| 引用本文： | 杨强,周进,吴海燕,孙明波.界面捕捉中耦合Level-set与VOF算法[J].航空计算技术,2012(4):14-19. |
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| 作者姓名： | 杨强 周进 吴海燕 孙明波 |
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| 作者单位： | 国防科学技术大学高超声速冲压发动机技术重点实验室,湖南长沙410073 |
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| 基金项目： | 国家自然科学基金项目资助（11002159）;国防科技大学科研计划项目资助（JCIO-01-02） |
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| 摘 要： | 针对传统的level-set方法在处理界面问题时守恒性差的缺点,提出了一种耦合level-set方法和VOF方法的算法(CLSVOF)。不仅保持了level-set界面光滑性好的特点,还结合了VOF高守恒性的优点。Level-set方程的求解采用五阶WENO格式,而VOF的体积分数输运方程采用Gueyffier的界面重构方法求解。三维数值计算结果表明这种耦合算法对level-set的守恒性有明显的改善。
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| 关 键 词： | 界面捕捉 耦合算法 Level-set VOF |
An Investigation on Coupled Level- set and VOF Algorithm in Interface Capturing |
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| YANG Qiang,ZHOU Jin,WU Hai-yan,SUN Ming-bo.An Investigation on Coupled Level- set and VOF Algorithm in Interface Capturing[J].Aeronautical Computer Technique,2012(4):14-19. |
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| Authors: | YANG Qiang ZHOU Jin WU Hai-yan SUN Ming-bo |
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| Institution: | YANG Qiang, ZHOU Jin, WU Hai- yan, SUN Ming- bo ( Science and Technology on Scramjet Laboratory, National University of Defense Technology, Changsha 410073, China) |
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| Abstract: | In this paper, we proposed a coupled level- set and VOF （ Volume of Fluid） method （ CLS- VOF） to overcome the weakness of mass loss in traditional level- set method. This algorithm preserves good characteristic of the smooth on interface in level- set method as well as the high conservation proper- ty in VOF approach. A 5th order WENO （Weighted Essentially Non- Oscillatory） was employed to dis- cretize the spacial term,while Gueyffier＇s interface construction method was used for the VOF transport e- quation. Test cases in 3D have shown the algorithm in this paper made an obvious improvement in the conservation property of level- set method. |
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| Keywords: | interface capturing coupled algorithm level- set VOF |
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