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GATE Mechanical 2023 | Question: 11

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Consider incompressible laminar flow of a constant property Newtonian fluid in an isothermal circular tube. The flow is steady with fully-developed temperature and velocity profiles. The Nusselt number for this flow depends on 

  1. neither the Reynolds number nor the Prandtl number
  2. both the Reynolds and Prandtl numbers
  3. the Reynolds number but not the Prandtl number
  4. the Prandtl number but not the Reynolds number

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