NUMERICAL SIMULATION OF THE PSEUDO-PHYSICAL TRANSITION TO A TURBULENT FLOW ON A SUDDENLY STOPPED FLAT-PLATE WITH AND WITHOUT RIBLETS

The primary stage of the transition to a turbulent flow were numerically simulated by the full Navier Stokes solutions in a multigrid system. The grid spacing was about three viscous units and only very subtle disturbances were created in the flow. The generation of streamwise vortices was first simulated, followed by simulation of their amalgamation to form vortex strips. The simulation then progressed to the complex interactions of three vortex components and the resultant initiation of the lift up of larger-scale vortices. Simulation also showed that riblets are likely to suppress torsional motion of the streamwise vortices, presumably leading to the reduction of vortex development and lift- up motion.

  • Availability:
  • Supplemental Notes:
    • Journal article
  • Authors:
    • Miyata, H
    • Kawano, T
  • Publication Date: 1989-6

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Filing Info

  • Accession Number: 00658292
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM