A new SPH density formulation for 3D free-surface flows

被引：9
作者：
Geara, S. [1 ,3 ,4 ]
Martin, S. [1 ]
Adami, S. [2 ]
Petry, W. [3 ]
Allenou, J. [4 ]
Stepnik, B. [4 ]
Bonnefoy, O. [1 ]
机构：
[1] Univ Lyon, Ctr SPIN, CNRS, Mines St Etienne,UMR 5307 LGF, F-42023 St Etienne, France
[2] Tech Univ Munich, Chair Aerodynam & Fluid Mech, D-85748 Garching, Germany
[3] Tech Univ Munich, Res Neutron Source Heinz Maier Leibnitz FRM II, D-85748 Garching, Germany
[4] Framatome France, CERCA TM, ZI Berauds, BP 1114, F-26104 Romans Sur Isere, France
来源：
COMPUTERS & FLUIDS | 2022年 / 232卷
关键词：
SPH; Free surface; Density correction; Curvature; Surface tension; SMOOTHED PARTICLE HYDRODYNAMICS;
D O I：
10.1016/j.compfluid.2021.105193
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In this paper, a new density formulation for free surface simulations using SPH is presented. This new approach is applicable to surface-tension driven free surface flows with strong topological changes. The density is corrected for each particle by analytically calculating the missing volume of the support domain. This calculation depends on two parameters: the local curvature and the distance of each particle to the free surface. This method was validated and compared with the density evolution method for two test cases: the square droplet and the Rayleigh-Plateau instability. It shows more stable results and a better representation of the free surface.
引用
收藏
页数：8
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