Investigation of 2D nonlinear free surface flows by SPH method

M. Ozbulut*, O. Goren

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


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 ε 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
PublisherCRC Press
Number of pages6
ISBN (Electronic)9781466558205
ISBN (Print)9780415620819
Publication statusPublished - 20 Sept 2011

Bibliographical note

Publisher Copyright:
© 2012 Taylor & Francis Group, London.


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