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Simulation of Flows in Plane Channel With a Hemisphere at the Bed by DNS and Immersed Boundary Method

[+] Author Affiliations
Thein Xuan Dinh, Y. Ogami

Ritsumeikan University, Kusatsu, Shiga, Japan

Paper No. PVP2004-3135, pp. 185-190; 6 pages
doi:10.1115/PVP2004-3135
From:
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 2
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4686-5
  • Copyright © 2004 by ASME

abstract

In order to develop an immersed boundary method for direct numerical simulation of turbulent and complicated boundary flow, we perform the method proposed by Kajishima for a fully developed turbulent channel flow with a hemisphere at the bed. The correlation between drag and lift, history of rollup moments about the specified contact axis and the distribution of pressure over the hemisphere in the plane of symmetry are presented. We also focus on instants of high rollup moment structure of the flow.

Copyright © 2004 by ASME

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