A comparative study of interface capturing methods with amr for incompressible two-phase flows

Document typeConference report
Defense date2017
PublisherCIMNE
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial
property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public
communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
This paper presents a comparative study of interface capturing methods with
adaptive mesh refinement for Direct Numerical Simulation (DNS) of incompressible two- phase flows.
The numerical algorithms for fluid motion and interface capturing methods have been previously
introduced in the context of the finite-volume approach for both mass conservative
level-set methodology and coupled volume-of-fluid/level-set method for unstructured/structured
fixed meshes. The Adaptive Mesh Refinement (AMR) method introduced in consist on a
cell-based refinement technique to minimize the number of computational cells and provide
the spatial resolution required for the interface capturing methods. The present AMR framework
adapts the mesh according to a physics-based refinement criteria defined by the
movement of the interface between the fluid-phases. Numerical experiments are presented to
evaluate the methods described in this work. This includes a study of the hydrodynamics of single
bubbles rising in a quiescent viscous liquid, including its shape, terminal velocity, and
wake patterns. These results are validated against experimental and numerical data well
established in the scientific literature, as
well as a comparison of the different approaches used.
ISBN978-84-946909-2-1
Files | Description | Size | Format | View |
---|---|---|---|---|
Coupled-2017-89 ... tive study of interfce.pdf | 1,774Mb | View/Open |