Investigation of 2D nonlinear free surface flows by SPH method

M. Ozbulut, O. Goren

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Smoothed Particle Hydrodynamics (SPH) arises as a useful tool in analyzing violent fluid flow problems with a free surface. The present study treats 2D nonlinear fluid motions with a free surface by means of SPH method. As a Lagrangian based method, SPH is employed first for the solution of the 2-D dam break problem, which can be used as a benchmark study, using Euler's equation and continuity equation as the governing differential equations. While the usual mathematical treatments of SPH are adopted, the assumptions or empirical schemes and parameters used by previous researchers are revisited to see the effect of these parameters-such as ε in "XSPH" variant velocity-on the resultant fluid flow. It is observed that such parameters, which find widespread acceptance, have crucial effects on the evolution of the flow. 2D sloshing problem of a swaying partially filled rectangular tank is subsequently investigated. It is understood from the numerical investigations that it is possible to obtain acceptable, valid results by tuning the basic parameters (such as 7 in "XSPH") without further developing new techniques such as density re-initialization and particle refinement to improve flow characteristics.

Original languageEnglish
Title of host publicationSustainable Maritime Transportation and Exploitation of Sea Resources - Proceedings of the 14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
Pages95-100
Number of pages6
Publication statusPublished - 2012
Event14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011 - Genova, Italy
Duration: 13 Sept 201116 Sept 2011

Publication series

NameSustainable Maritime Transportation and Exploitation of Sea Resources - Proceedings of the 14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
Volume1

Conference

Conference14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
Country/TerritoryItaly
CityGenova
Period13/09/1116/09/11

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