Conservation correction by dual Level Set
Anne-Cecile Lesage
(Barcelona supercomputing center)
Alain Dervieux
(INRIA, BP93, 06902 Sophia-Antipolis, France)
INRIA Research Report #7089, 2009 (32 pages)
Abstract:
When applied to the simulation of bi-fluid incompressible flow, the level set method does not ensure mass conservation of each fluid. Now this needs to be enforced. In this paper, we propose a complementary local mass conservation based on a weak formulation of the advection of the interface characteristic function. We first apply our method to the advection of a discontinuous concentration. Secondly, we couple our method with incompressible two-phase flow simulation and validate it on test cases where one fluid separates in disconnected parts (motion of two separated liquid volumes, water column falling on an obstacle).
Keywords:
Computational Fluid Dynamics – finite volume – unstructured meshes – level set – interfaces
Full text (pdf)
@techreport{LD09,
author = {Lesage, A.-C. and Dervieux, A.},
title = {Conservation correction by dual Level Set},
institution = {INRIA},
type = {Research Report},
url = {http://hal.inria.fr/inria-00430191/en/},
year = 2009
}