DOI QR코드

DOI QR Code

Simulated of flow in a three-dimensional porous structure by using the IB-SEM system

  • Wang, Jing (School of Qilu Transportation, Shandong University) ;
  • Li, Shucai (School of Qilu Transportation, Shandong University) ;
  • Li, Liping (School of Qilu Transportation, Shandong University) ;
  • Song, Shuguang (Research Center of Geotechnical and Structural Engineering, Shandong University) ;
  • Lin, Peng (School of Qilu Transportation, Shandong University) ;
  • Ba, Xingzhi (School of Qilu Transportation, Shandong University)
  • 투고 : 2018.12.08
  • 심사 : 2019.08.22
  • 발행 : 2019.08.30

초록

The IB-SEM numerical method combines the spectral/hp element method and the rigid immersed boundary method. This method avoids the problems of low computational efficiency and errors that are caused by the re-division of the grid when the solids move. Based on the Fourier transformation and the 3D immersed boundary method, the 3D IB-SEM system was established. Then, using the open MPI and the Hamilton HPC service, the computational efficiency was increased substantially. The flows around a cylinder and a sphere were simulated by the system. The surface of the cylinder generates vortices with alternating shedding, and these vortices result in a periodic force acting on the surface of the cylinder. When the shedding vortices enter the flow field behind the cylinder, a recirculation zone is formed. Finally, the three-dimensional pore flow was successfully investigated.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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