This page calculates the head loss coefficient and head loss of a fluid across thin-walled parallel louvers inside a tube of square cross section.

Define the number of louvers, angle and flow conditions in the tube. The head loss across the louvers will be calculated.

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Tube and Flow Properties

Description Symbol Value Units
Number of Louvers in Tube N None
Angle of Louvers in Tube A Degrees
Flow Velocity in the Tube um m/s
Width of the Tube a Meters
Kinematic Viscosity v kg/m-s

Results for Head Loss of Louvers

Equations Used Symbol Value Units
kqu = Function of Angle and Number of Louvers kqu None
Hydraulic Diameter of the Tube = a Dh Meters
Reynolds Number = um * Dh / v Re None
X = X None
Head Loss Coefficient = X + kloss None
Head Loss = kloss * (um2 / (2 * g) ) hl Meters

 

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