TY  - EJOU
AU  - Zhou, Yan  
AU  - Ma, Qingwei 

TI  - A New Interface Identification Technique Based on Absolute Density Gradient for Violent Flows
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2018
VL  - 115
IS  - 2
SN  - 1526-1506

AB  - An identification technique for sharp interface and penetrated isolated particles is developed for simulating two-dimensional, incompressible and immiscible two-phase flows using meshless particle methods in this paper. This technique is based on the numerically computed density gradient of fluid particles and is suitable for capturing large interface deformation and even topological changes such as merging and breaking up of phases. A number of assumed particle configurations will be examined using the technique, including these with different level of randomness of particle distribution. The tests will show that the new technique can correctly identify almost all the interface and isolated particles, and also show that it is better than other existing popular methods tested.
KW  - Meshless method
KW  -  Particle method
KW  -  two-phase flow
KW  -  interface identification
KW  -  violent flows
KW  -  breaking waves

DO  - 10.3970/cmes.2018.00249