Boundary Conditions for Simulating Karman Vortices Using the MPS Method

Kazuya Shibata; Seiichi Koshizuka; Kohei Murotani; Mikio Sakai; Issei Masaie

doi:10.15748/jasse.2.235

Regular Section

Boundary Conditions for Simulating Karman Vortices Using the MPS Method

Kazuya Shibata, Seiichi Koshizuka, Kohei Murotani, Mikio Sakai, Issei Masaie

Author information

Keywords: Moving particle semi-implicit (MPS) method, Smoothed particle hydrodynamics (SPH), Outflow boundary, Curl model, Drag coefficient, Strouhal number

JOURNAL FREE ACCESS

2015 Volume 2 Issue 2 Pages 235-254

DOI https://doi.org/10.15748/jasse.2.235

Details

Abstract

New boundary conditions to simulate the Karman vortices were developed for the Moving Particle Semi-implicit (MPS) method. These boundary conditions enable us to analyze the wake region of a cylinder without an unnatural cavity observed in past analyses. Karman vortices that were present behind a circular cylinder and a square cylinder in flows were successfully simulated in two dimensions using the MPS method with the developed boundary conditions. The simulated drag coefficients and Strouhal numbers were close to those of the finite difference method and experiments.

Corresponding author

Register with J-STAGE for free!