Enhancement of a 2D front-tracking algorithm with a non-uniform distribution of Lagrangian markers

Mijail Febres Soria (1) , Dominique Legendre (1)

1 IMFT - Institut de mécanique des fluides de Toulouse

The 2D front tracking method is enhanced to control the development of spurious velocities for non-uniform distributions of markers. The hybrid formulation of Shin et al. (2005) [7] is considered. A new tangent calculation is proposed for the calculation of the tension force at markers. A new reconstruction method is also proposed to manage non- uniform distributions of markers. We show that for both the static and the translating spherical drop test case the spurious currents are reduced to the machine precision. We also show that the ratio of the Lagrangian grid size

Mots clés: 2D front-tracking; Front reconstruction; Non-uniform distribution; Spurious velocities

Domaines: Mécanique des fluides [physics.class-ph]

Mijail Febres Soria, Dominique Legendre. Enhancement of a 2D front-tracking algorithm with a non-uniform distribution of Lagrangian markers. Journal of Computational Physics, 2018, vol. 358, pp. 173-200. ⟨10.1016/J.JCP.2017.12.021⟩. ⟨hal-01793205⟩