Cu06997 exercise5

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Cu06997 exercise5

  1. 1. Hydraulic radius A Wetted Area [m2] R  P Wetted Perimeter [m] R = Hydraulic Radius [m] R = Hydraulische straal [m] A = Wetted Area [m2] A = Natte oppervlakte [m2] P = Wetted Perimeter [m] P = Natte omtrek [m]2
  2. 2. Reynolds number𝜇= Absolute viscosity [m2/s] 𝑉. 4𝑅𝜐= Kinematic viscosity [kg/ms] 𝑅𝑒 = water, 20°C= 1,00 ∙ 10−6 𝜈𝜌 = Density of liquid [kg/m3]𝑉 = Velocity [m/s]D = Hydraulic diameter [m]R= Hydraulic Radius = D/4 [m]𝑅𝑒 = Reynolds Number [1]𝑹𝒆 > 𝟒𝟎𝟎𝟎 Turbulent flow𝑹𝒆 < 𝟐𝟎𝟎𝟎 Laminar flow5

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