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Viscosity converters translate between kinematic (stokes, cSt) and dynamic (poise, centipoise, Pa·s) viscosity units.
Formel
Kinematic = dynamic / density: ν = μ / ρ
Trin-for-trin guide
- 1Kinematic = dynamic / density: ν = μ / ρ
- 21 cSt = 0.01 stokes = 0.000001 m²/s
- 31 centipoise (cP) = 0.001 Pa·s = 0.001 kg/(m·s)
Løste eksempler
Input
Motor oil SAE 10W-30: 100 cSt at 40°C, density 0.88 kg/L
Resultat
Dynamic viscosity ≈ 88 cP
Temperature-dependent
Almindelige fejl at undgå
- ✕Confusing kinematic and dynamic viscosity without conversion
- ✕Using room-temperature viscosity for high-temperature flow
Ofte stillede spørgsmål
Why two types of viscosity?
Dynamic used with pressure drop calculations, kinematic for fluid flow under gravity. Related by density.
How temperature sensitive is viscosity?
Dramatically; halving oil temperature can double viscosity. Viscosity index rates this sensitivity.
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