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Pressure drop in Leopold blocks90° curve and elbowFoot valveGlobe valveDynamic viscosity of atmospheric airFuller's formula

45° elbow

Input data

Flow

Diameter

Output data

Head loss

Description

Performs head losses calculations in in 45° elbows. There are two options:

Given the flow

Given the flow and the pipe diameter, calculates the corresponding head loss.

Coefficient

Given the pipe diameter, calculates the head losses coeficients corresponding to the expressions:

  1. k applicable to the expression: $$ h_f = k. \frac{U^2}{2g} $$

  2. kQ applicable to the expression: $$ h_f = k_Q. Q^2

    $$

45° elbow45° elbow

References

  • Silvestre, Paschoal. Hidráulica geral. Rio de Janeiro, LTC, 1979.