FLOW STRUCTURE OF STREAMWISE VORTICES NEAR A DENSITY INTERFACE

Mixing in a stratified flow and its associated flow structure are investigated by numerical experiments. The computational method for stratified flows developed in the previous abstract is extended to the three-dimensional cases and applied to the phenomena in which a density interface is formed by erosion of the region with density gradient and it descends by the mixing. In the two-dimensional computation the mixed layer develops slower than in the experiment, while the result in the three-dimensional computation is in good agreement with the experiment. It is found that the flow structure of streamwise vortices as observed in the visualization experiments formed near a density interface in the computation and it enhances the mixing across the density interface by deforming the interface to the wave shape.

• Supplemental Notes:
  • J Kansai Soc Naval Architects, n 224, Sept 1995, p 147 [6 p, 4 ref, 7 fig]
• Authors:
  • Baba, N
  • Hanada, S
• Publication Date: 1995

Language

• Japanese

Subject/Index Terms

• TRT Terms: Density; Two phase flow; Vortices
• Uncontrolled Terms: Navier Stokes equations
• Old TRIS Terms: Stratified flow
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00718753
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1996 12:00AM