HNP Mikrosysteme develops, manufactures and markets pumps worldwide which dose small amounts of liquids fast and accurately ... more
- News / Press
The volume flow Q of a liquid with dynamic viscosity η in a tube with length L and inner diameter D causes a pressure drop Δp.
The pressure drop in laminar case is calculated as follows:
Formula: η = ρ ⋅ ν
Dynamic viscosity η: 1 mPas = 1 cP (P = Poise)
Kinematic viscosity ν: 1 mm²/s = 1 cSt (St = Stokes)