Hits:

Indexed by:期刊论文

Date of Publication:2013-02-01

Journal:OCEAN ENGINEERING

Included Journals:SCIE、EI

Volume:59

Page Number:129-141

ISSN No.:0029-8018

Key Words:2D sloshing; Solid boundary treatment; Pressure measurement; Smoothed particle hydrodynamics (SPH)

Abstract:In this paper, the pressure on solid boundaries in 2D sloshing problem for forced rolling motion is numerically investigated using smoothed particle hydrodynamics (SPH) method. The improved SPH model applied in this paper combines some advanced correction algorithms. The Moving Least Squares (MLS) method is used in the density reinitialization to obtain smoother and more stable pressure field in numerical simulation. An improved coupled dynamic solid boundary treatment (SBT) algorithm is implemented, and great improvement in the pressure field near solid boundaries is achieved. To analyze the pressure of specified points on solid walls, a special pressure measurement method on solid walls based on the coupled dynamic SBT method is given. In this method, both the physical pressure of the boundary particle and a correction term based on the repulsive forces are taken into account. Numerical results obtained show good agreement with the experimental ones in the analysis of both the pattern of the flow field and the pressure on the solid boundary. Further conclusions based on these results are discussed. (C) 2012 Elsevier Ltd. All rights reserved.