Journal of Northeastern University(Natural Science) ›› 2021, Vol. 42 ›› Issue (9): 1254-1260.DOI: 10.12068/j.issn.1005-3026.2021.09.006

• Information & Control • Previous Articles     Next Articles

Coupled Algorithm of Lagrangian Particle Method and Volume of Fluid Method for Free Interface Problem

GAO Pu-yang   

  1. School of Science, Chang’an University, Xi’an 710064, China.
  • Revised:2021-01-27 Accepted:2021-01-27 Published:2021-09-16
  • Contact: GAO Pu-yang
  • About author:-
  • Supported by:
    -

Abstract: For free interface problem, a coupled algorithm of Lagrangian particle method and volume of fluid(VOF) was proposed. Although the Lagrangian particle method is able to accurately capture the interface front, there is no mechanism to guarantee the mass conservation. The volume of fluid method is known for its good mass conservation property. However, it is not easy to calculate the geometrical information of the interface. In the coupled method, the advantages of these two methods were combined. The technique of quad-tree adaptive grid was also added, which is able to track interface with high resolution and also save the computational cost. The traditional examples, i.e., Zalesak’s slotted disk and reversed single vortex flow, are employed to illustrate the stability accuracy and efficiency of our coupled algorithm for solving dynamic interface problems. The numerical results agree with the existing results in the literature.

Key words: Lagrangian particle method; volume of fluid(VOF)method; free interface problem; quad-tree adaptive grid; Zalesak disk; single vortex

CLC Number: