Journal ArticleDOI
Shear Layer Interactions With Fluid–Fluid Interface in the Wake of an Elliptical Cylinder
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TLDR
In this article, the wake of an elliptic cylinder is analyzed in the presence of a fluid-fluid interface and the interaction between the interface and flow affect each other and hence different wake dynamics and interface topologies are observed.Abstract:
In this study, wake of an elliptic cylinder is analyzed in the presence of a fluid–fluid interface. The interactions between the interface and flow affect each other and hence different wake dynamics and interface topologies are observed. The numerical solver developed for this study has immersed boundary method (IBM) coupled with level-set method (LSM). The proximity of the elliptical cylinder to the interface (H/D), Froude number (Fr), and angle of incidence (AOI) are the parameters considered. Three different Froude number regimes are considered for this study, namely, subcritical (Fr < 1), critical (Fr = 1.0), and supercritical (Fr >1) regime. In this paper, the interface topology, wake dynamics, and force values are compared for the variation of these parameters.read more
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Stanley Osher,James A. Sethian +1 more
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A level set approach for computing solutions to incompressible two- phase flow II
TL;DR: In this article, a level set method for capturing the interface between two fluids is combined with a variable density projection method to allow for computation of two-phase flow where the interface can merge/break and the flow can have a high Reynolds number.
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Level set methods: an overview and some recent results
Stanley Osher,Ronald Fedkiw +1 more
TL;DR: The level set method is couple to a wide variety of problems involving external physics, such as compressible and incompressible flow, Stefan problems, kinetic crystal growth, epitaxial growth of thin films, vortex-dominated flows, and extensions to multiphase motion.
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Diffuse-interface methods in fluid mechanics
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