A Finite-volume/level-set Interface Capturing
Method For Unstructured Grids: Simulations Of
Bubbles Rising Through Viscous Liquids
Author(s)
N. Balc´azar, L. Jofre, O. Lehmkuhl, J. Rigola, J. Castro
&A. Oliva
Abstract
A numerical method is developed for simulating two-phase flows with moving
inter-phase boundaries, which is integrated in a finite-volume framework on
collocated unstructured grids of arbitrary element type. The location, geometry
and the movement of the discontinuities are described by the conservative levelset
method. The proposed algorithm is validated with experimental results of the
buoyant rise of an isolated bubble. Then the method is applied to simulate the
interaction between two bubbles during their buoyant rise. Finally, simulations for
a set of bubbles with the same diameter initially placed in a random pattern in a
periodic cylindrical duct are also carried out. In general, a good agreement is found
between the current simulations and results reported in the literature.
Keywords: finite-volume method, conservative level set method, incompressible
two phase flow, unstructured grid.
Keywords
finite-volume method, conservative level set method, incompressible
two phase flow, unstructured grid.
Related Book
Other papers in this volume
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