Open Access

ARTICLE

Numerical Simulation of an Axisymmetric Compound Droplet by Three-Fluid Front-Tracking Method

S. Homma¹, M. Yokotsuka¹, T. Tanaka¹, K. Moriguchi¹, J. Koga¹, G. Tryggvason²

1 Saitama University, Saitama, Japan
2 University of Notre Dame, Notre Dame, IN, U.S.A.

Fluid Dynamics & Materials Processing 2011, 7(3), 231-240. https://doi.org/10.3970/fdmp.2011.007.231

Abstract

We develop a three-fluid front-tracking method in order to simulate the motion of an axisymmetry compound droplet, which consists of three immiscible fluids separated by two different interfaces. The two interfaces of the compound droplet are represented by two different sets of the front-tracking elements immersed on the Eulerian grid mesh, where the velocities and the pressure are calculated. The density and viscosity profiles with jumps at the interfaces are successfully determined from the location and the connection information of the front-tracking elements. The motion of a compound droplet is simulated on axisymmetric cylindrical coordinates. The results show that the three-fluid front tracking method works appropriately for the motion of a compound droplet. Stability of a spherical compound droplet is examined numerically and the stable position is found from the simulations.

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Keywords

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