Confined Swirling Flows of Simplified Phan-Thien-Tanner (SPTT) Fluids: a Numerical Study

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  • Majidi Sahand
    Department of Mechanical Engineering, College of Engineering, University of Tehran
  • Sadeghy Kayvan
    Department of Mechanical Engineering, College of Engineering, University of Tehran

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Confined swirling flow of polymer solutions is investigated numerically using the finite volume method combined with a collocated mesh. The Simplified Phan-Thien-Tanner (SPTT) rheological model will be used as the constitutive equation of the fluid. It is assumed that the flow is steady, laminar, and axisymmetric. The effect of different parameters such as fluid's elasticity, mobility factor, retardation ratio, and the channel aspect ratio will be investigated on the velocity profiles and vortex structure within the cylinder and above the rotating disk. Numerical results are shown to be in good qualitative agreement with experimental data available for certain polymer solutions.

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