Inscrição na biblioteca: Guest
Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

SLIP-FLOW OVER LUBRICATED SURFACES

pages 881-886
DOI: 10.1615/TSFP3.1470
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RESUMO

A direct numerical simulation (DNS) of a lubricated turbulent channel flow is performed. The lubricating film, present at both channel walls, is replaced by a new set of dynamic slip-flow boundary conditions imposed at the planar film-fluid interface. The proposed slip-flow boundary conditions are verified against a simulation where both the lubricating film and the bulk fluid have been solved within the DNS approach. Both turbulence statistics and instantaneous near-wall vortical structures are satisfactorily reproduced by the slip-flow boundary conditions.

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