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Some features of the flow around rapidly rotating bodies made of cellular-porous materials

Baev, V. ; Fedorov, A. ; Fomin, V. ; Khmel’, T.

Journal of Applied Mechanics and Technical Physics, 2007, Vol.48(1), pp.71-79 [Periódico revisado por pares]

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  • Título:
    Some features of the flow around rapidly rotating bodies made of cellular-porous materials
  • Autor: Baev, V. ; Fedorov, A. ; Fomin, V. ; Khmel’, T.
  • Assuntos: cellular-porous materials ; rotation ; internal and external flows ; experiment ; numerical simulation
  • É parte de: Journal of Applied Mechanics and Technical Physics, 2007, Vol.48(1), pp.71-79
  • Descrição: Two types of gas flows arising near a rapidly rotating cellular-porous disk are studied numerically and experimentally. Steady-state limits for the flow around a disk rotating in free space and the type and scenario of the loss of stability are determined. Transitional flows are characterized by formation of a vortex sheet at the boundary of the exhausting jet. Numerical simulations of the flow around a cellular-porous disk rotating near a flat screen show that it is possible to form a closed swirl flow responsible for redistribution of swirl in the gap between the disk and the flat screen. The computed results offer an explanation for the experimentally observed excess of tangential velocity of the flow in the gap over the velocity of disk rotation.
  • Idioma: Inglês

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