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1 results

  • A numerical simulation of viscous shear effects on poroussqueeze-film using the Darcy-Brinkman model

  • Mohamed Nabhani, Mohamed El Khlifi, Benyebka Bou-saïd
  • Journal:
    Mechanics & Industry / Volume 11 / Issue 5 / September 2010
    Published online by Cambridge University Press:
    24 December 2010, pp. 327-337
    Print publication:
    September 2010

  • In recent decades, problems related to the squeeze of fluid films in the presence of aporous medium draw attention of researchers and are the subject of many applied studiesfor industry and biomechanics. Our concerns in this paper are the numerical simulation ofthe viscous shear stresses effects on the fluid film characteristics between two discswith one porous. This study is based on the coupling, at the fluid film-porous discinterface, of the Darcy-Brinkman equations in the porous medium and the modified Reynoldsequation describing the flow in the fluid film. The system of equations obtained isdiscretized by the means of finite differences method and solved numerically using thetechnique of Successive Over-Relaxation (SOR). The results show that the viscous sheareffects increase the radial and the axial fluid film velocities as well as the squeezefilm velocity but decrease the response time. Moreover, these effects are enlarged forsmaller viscous shear parameter and for smaller fluid film thickness.