Geomechanics and Engineering

Techno-Press (테크노프레스)
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The establishment of IB-SEM numerical method and verification of fluid-solid interaction

  • Wang, Jing (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Li, Shu-cai (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Mao, Xuerui (State Key Lab of Subtropical Building Science, South China University Of Technology) ;
  • Li, Li-ping (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Shi, Shao-shuai (Geotechnical and Structural Engineering Research Center, Shandong University) ;
  • Zhou, Zong-qing (Geotechnical and Structural Engineering Research Center, Shandong University)
  • Received : 2017.12.26
  • Accepted : 2018.04.07
  • Published : 2018.08.30
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Abstract

The interaction between particles and fluid was investigated by IB-SEM numerical method which is a combination of combing the spectral/hp element method and the rigid immersed boundary method. The accuracy of this numerical method was verified based on the computed results with the traditional body-fitted mesh in numerical simulation of the flow through the cylinder. Then the governing equations of particles motion and contact in fluid are constructed. The movement of the particles and the interaction between the fluid and the particles are investigated. This method avoided the problem of low computational efficiency and error caused by the re-division of the grid when the solids moved. Finally, the movement simulation of multi particles in the fluid was carried out, which can provide a completely new numerical simulation method.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Shandong Provincial Natural Science Foundation, China Postdoctoral Science Foundation, Shandong University

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