An adaptive level set approach for incompressible two-phase flows

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In Sussman, Smereka and Osher, a numerical method using the level set approach was formulated for solving incompressible two-phase flow with surface tension. In the level set approach, the interface is represented as the zero level set of a smooth function; this has the effect of replacing the advection of density, which has steep gradients at the interface, with the advection of the level set function, which is smooth. In addition, the interface can merge or break up with no special treatment. The authors maintain the level set function as the signed distance from the interface in order to robustly ... continued below

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47 p.

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Sussman, M.; Almgren, A. S. & Bell, J. B. April 1, 1997.

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Description

In Sussman, Smereka and Osher, a numerical method using the level set approach was formulated for solving incompressible two-phase flow with surface tension. In the level set approach, the interface is represented as the zero level set of a smooth function; this has the effect of replacing the advection of density, which has steep gradients at the interface, with the advection of the level set function, which is smooth. In addition, the interface can merge or break up with no special treatment. The authors maintain the level set function as the signed distance from the interface in order to robustly compute flows with high density ratios and stiff surface tension effects. In this work, they couple the level set scheme to an adaptive projection method for the incompressible Navier-Stokes equations, in order to achieve higher resolution of the interface with a minimum of additional expense. They present two-dimensional axisymmetric and fully three-dimensional results of air bubble and water drop computations.

Physical Description

47 p.

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OSTI as DE97007356

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  • Other Information: PBD: Apr 1997

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  • Other: DE97007356
  • Report No.: LBNL--40327
  • Grant Number: AC03-76SF00098;FG03-95ER25271
  • DOI: 10.2172/503479 | External Link
  • Office of Scientific & Technical Information Report Number: 503479
  • Archival Resource Key: ark:/67531/metadc696085

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  • April 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 20, 2017, 12:36 p.m.

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Sussman, M.; Almgren, A. S. & Bell, J. B. An adaptive level set approach for incompressible two-phase flows, report, April 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc696085/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.