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Viscosity converters translate between kinematic (stokes, cSt) and dynamic (poise, centipoise, Pa·s) viscosity units.
公式
Kinematic = dynamic / density: ν = μ / ρ
ステップバイステップガイド
- 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)
解いた例
入力
Motor oil SAE 10W-30: 100 cSt at 40°C, density 0.88 kg/L
結果
Dynamic viscosity ≈ 88 cP
Temperature-dependent
避けるべきよくある間違い
- ✕Confusing kinematic and dynamic viscosity without conversion
- ✕Using room-temperature viscosity for high-temperature flow
よくある質問
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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