ELAFINT : A computational method for fluid flows with free and moving boundaries
A computational technique called ELAFINT has been developed to handle the existence of highly deformed moving and free boundaries. These boundaries or interfaces cut through an underlying cartesian grid, leading to irregularly shaped control volumes in the vicinity of the interface. A method to reassemble these control volumes to maintain flux conservation has been designed. The accuracy of the methods at each stage of the development have been assessed. Currently highly deformed, moving interfaces with phase change can be tracked in conjunction with an implicit pressure-based Navier-Stokes equation solver. This methodology can be applied to solve fluid flow problmes in complex geometries.
KeywordsRayleigh Number Control Volume Interface Position Interface Shape Drive Cavity
Unable to display preview. Download preview PDF.
- 2.Kessler,D.A., Koplik,J. and Levine, H., 1988, “Pattern selection in fingered growth phenomena,” Advances in Physics, Vol.37, No. 11, pp.255–339.Google Scholar
- 3.Nakaya,U., 1954, Show Crystals, Harvard University Press, Cambridge, MA.Google Scholar
- 7.DeGregoria,A.J. and Schwartz,L.W., 1986,“A boundary integral method for two-phase displacement in Hele-Shaw cells,” J.Fluid Mech., vol. 164, pp.383–400.Google Scholar
- 11.Wheeler,A.A., Murray,B.T. and Schaefer,R.J., 1993, “Computation of dendrites using a phase field model,” to appear in Physics D.Google Scholar
- 12.H.S.Udaykumar and Shyy, W., 1993, “Development of a grid-support marker particle scheme for interface tracking,” presented at the 11th AIAA Comp. Fluid Dyn. Conf; Paper No. AIAA-93-3384, Orlando, Florida, USA.Google Scholar
- 13.Patankar, S.V., 1980, “Numerical Heat Transfer and Fluid Flow”, Hemisphere Publicating, New York.Google Scholar
- 14.Udaykumar, H.S., 1994, PhD Dissertation, Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville.Google Scholar
- 15.Shyy, W. and Rao, M.M., 1994, “Enthalpy based formulations for phase change problems with application to g-jitter,” Microgravity Sci. and Tech., Vol.7, pp. 41–49.Google Scholar
- 16.Shyy. W., 1994, “Computational Modelling for Fluid Flow and Interfacial Transport,” Elsevier, Amsterdam, Netherlands.Google Scholar