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K_Sharp-edged_Pipe_Exit
The K_Sharp_edged_Pipe_Exit(S$) function returns the resistance coefficient for a sharp-edged exit for laminar or turbulent flow. S$ should either be 'Laminar' or 'Turbulent'.
Example:
$UnitSystem SI K Pa J
K=K_Sharp_edged_Pipe_Exit('Laminar')
V_tilde=10 [m/s]
rho=1000 [kg/m^3]
g=g#
h_L=K*V_tilde^2/(2*g)
DELTAP=h_L*rho*g
{Solution
DELTAP=6289 [kg/m-s^2]
h_L=0.6413 [m]
K=0.1258
}
Notes:
The resistance coefficient is the same as for the rounded pipe exit.
Reference:
Cengel and Cimbala, Fluid Mechanics, Fundamentals and Applications,McGraw-Hill, 2006
Page A-29 of Crane, "Flow of Fluids through Valves, Fittings and pipe", Technical Paper No. 410M, Crane Co, NY, 1979
Minor Losses Index