Journal article
ELAFINT: a mixed Eulerian-Lagrangian method for fluid flows with complex and moving boundaries
International journal for numerical methods in fluids, Vol.22(8), pp.691-712
04/30/1996
DOI: 10.1002/(SICI)1097-0363(19960430)22:8<691::AID-FLD371>3.0.CO;2-U
Abstract
In this work a mixed Eulerian–Lagrangian technique is devised, hereinafter abbreviated as ELAFINT (Eulerian–Lagrangian Algorithm For INterface Tracking). The method is capable of handling fluid flows in the presence of both irregularly shaped solid boundaries and moving/free phase boundaries. The position and shape of the boundary are tracked explicitly by the Lagrangian translation of marker particles. The field equations are solved on an underlying fixed grid as in Eulerian methods. The interface passes through the grid lay-out and details regarding the treatment of the cut cells so formed are provided. The issues involved in treating the internal boundaries are dealt with, with particular attention to conservation and consistency in the vicinity of the interface. The method is tested by comparing with solutions from well-tested body-fitted co-ordinate methods. Test cases pertaining to forced and natural convection in irregular geometries and moving phase boundaries with melt convection are presented. The capability developed here can be beneficial in solving difficult flow problems involving moving and geometrically complex boundaries.
Details
- Title: Subtitle
- ELAFINT: a mixed Eulerian-Lagrangian method for fluid flows with complex and moving boundaries
- Creators
- H. S UDAYKUMAR - Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611, United StatesW SHYY - Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611, United StatesM. M RAO - Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611, United States
- Resource Type
- Journal article
- Publication Details
- International journal for numerical methods in fluids, Vol.22(8), pp.691-712
- DOI
- 10.1002/(SICI)1097-0363(19960430)22:8<691::AID-FLD371>3.0.CO;2-U
- ISSN
- 0271-2091
- eISSN
- 1097-0363
- Publisher
- Wiley; Chichester
- Language
- English
- Date published
- 04/30/1996
- Academic Unit
- Injury Prevention Research Center; Mechanical Engineering
- Record Identifier
- 9984064581002771
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