Introducing One Row Wall Boundary Condition Utilizing Developed Moving Particle Semi-implicit Method

Document Type : Research Article

Authors

1 Ph.D. Student, Department of Civil Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.

2 Assistant Professor, Department of Civil Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran.

Abstract

Moving Particle Semi-implicit (MPS) method is one of the fully Lagrangian particle methods which is meshless and widely used in various engineering problems. Flow characteristics such as velocities and pressures assigned to each particle and particles have the rule of meshes. MPS method in its original form suffers from pressure oscillations and fluctuations. Various efforts on MPS method were made in order to suppress these spurious oscillations. This method is rarely used in engineering problems with curved lines in their geometry. In this study, a modified method is proposed which improves computational pressure fields and has the ability of modeling problems with complicated geometries including curved lines. In order to validate the proposed method, various hydraulic problems such as hydrostatic and dam-break problems as common tests and flow over an ogee spillway with open boundaries as new test case are simulated. The results obtained showed good agreement between the theoretical smoothed pressure fields with those obtained from the experiments.
 

Keywords

References

 
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Journal of Hydraulics
Volume 12, Issue 2 - Serial Number 122
September 2017
Pages 45-57

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History

  • Receive Date: 14 May 2017
  • Revise Date: 22 June 2017
  • Accept Date: 11 July 2017

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