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Laminar Pipe Flow

Created using ANSYS 13.0

Problem Specification



Consider fluid flowing through a circular pipe of constant radius as illustrated above. The figure is not to scale. The pipe diameter D = 0.2 m and length L = 8 m Consider the inlet velocity to be constant over the cross-section and equal to 1 m/s. The pressure at the pipe outlet is 1 atm. Take density ρ = 1 kg/ m3 and coefficient of viscosity µ = 2 x 10-3 kg/(m s). These parameters have been chosen to get a desired Reynolds number of 100 and don't correspond to any real fluid. 

Solve this problem numerically using ANSYS FLUENT. Present the following results:

  • Velocity vectors 
  • Velocity magnitude contours 
  • Pressure contours 
  • Velocity profile at the outlet
  • Skin friction coefficient along the wall

Provide comparisons of the results with the full-developed analytical solution. Verify your results. 


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