Next Article in Journal
Phosphorus Availability and Growth of Benthic Primary Producers in Littoral Lake Sediments: Are Differences Linked to Induced Bank Filtration?
Previous Article in Journal
Variation and Driving Factors of Water Discharge and Sediment Load in Different Regions of the Jinsha River Basin in China in the Past 50 Years
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle

Application Research of an Efficient and Stable Boundary Processing Method for the SPH Method

1
School of Marine Engineering, Jimei University, Xiamen 361021, China
2
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Water 2019, 11(5), 1110; https://doi.org/10.3390/w11051110
Received: 25 April 2019 / Revised: 20 May 2019 / Accepted: 22 May 2019 / Published: 27 May 2019
(This article belongs to the Section Hydraulics)
  |  
PDF [4449 KB, uploaded 29 May 2019]
  |  

Abstract

The boundary truncation of the kernel function affects the numerical accuracy and calculation stability of the smooth particle hydrodynamics (SPH) method and has been one of the key research fields for this method. In this paper, an efficient and stable boundary processing method for the SPH method was introduced by adopting an improved boundary interpolation method (i.e., the improved Shepard method) which needs only the sum of direct accumulation for fixed-boundary particles to improve the numerical stability and computational efficiency of the fixed ghost particle method. The improvement effect of the method was demonstrated by comparing it with different interpolation methods using the cases of still water, a wave generated by dam-breaking, and a solitary wave attacking problem with fixed walls and a moveable wall. The results showed that the new boundary processing method for SPH can help remarkably improve the efficiency of calculation and reduce the oscillations of pressure when simulating various flows. View Full-Text
Keywords: SPH; improved Shepard method; fixed ghost boundary method; wave impact SPH; improved Shepard method; fixed ghost boundary method; wave impact
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Huang, X.; Chen, W.; Hu, Z.; Zheng, X.; Jin, S.; Zhang, X. Application Research of an Efficient and Stable Boundary Processing Method for the SPH Method. Water 2019, 11, 1110.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top