HAALAND EQUATION

The 'Haaland equation' is an approximate explicit equation which combines experimental results of studies of laminar and turbulent flow in pipes. It was developed by S. E. Haaland in 1983.
The Haaland equation is defined as:

ight)^{1.11} + rac{6.9}{mathrm{Re}}
ight]

Contents

References

References

★ Simple and Explicit Formulas for the Friction Factor in Turbulent Flow, , SE, Haaland, Trans. ASIVIE, J. of Fluids Engineering,