A fully-implicit multigrid driven algorithm for time-resolved non-linear free-surface flow on unstructured grids

Biing Horng Liou, Luigi Martinelli, Antony Jameson

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A fully-implicit multigrid method has been developed for the computation of time dependent free surface flow. The method uses the generalized artificial compressibility approach to couple the incompressible Euler equations and continuity equation in a hyperbolic manner which allows several techniques for convergence acceleration to be implemented. Two grid adaption strategies are used to capture wave motions as well as wavemaker's oscillations. Comparisons are made between these two techniques and experimental data of the flow field around a NACA 0012 airfoil placed beneath an initially calm free surface. Transient solutions of a wave-maker oscillating horizontally are also presented to validate the new method.

Original languageEnglish (US)
Pages (from-to)349-353
Number of pages5
JournalAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Volume238
StatePublished - 1996

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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