Hagen-Poiseuille law


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Hagen-Poiseuille law

[′häg·ən pwä·zȯi ‚lȯ]
(fluid mechanics)
In the case of laminar flow of fluid through a circular pipe, the loss of head due to fluid friction is 32 times the product of the fluid's viscosity, the pipe length, and the fluid velocity, divided by the product of the acceleration of gravity, the fluid density, and the square of the pipe diameter.
References in periodicals archive ?
We need to address each variable in Hagen-Poiseuille's pressure drop equation (also referenced as Hagen-Poiseuille law) (see Figure 5) - to include flow rate, flow length, mold geometry (radius, width, thickness) and viscosity!
The linear relation between pressure drops and volumetric flow rates in a channel is the Hagen-Poiseuille law, which is typically applicable, even when the flow passes through complex networks in conjunction with the conservation of mass.
This method uses a standard formula known as the Hagen-Poiseuille Law, which calculates viscosity from the pressure drop.