“Poiseuille”的意思、由来-开放百科全书

词条

Poiseuille

释义

Definition
References
Bibliography

{{about||the physicist|Jean Léonard Marie Poiseuille|Poiseuille flow|Hagen–Poiseuille equation}}

The poiseuille (symbol Pl) has been proposed as a derived SI unit of dynamic viscosity,^[1] named after the French physicist Jean Léonard Marie Poiseuille (1797–1869).

In practice the unit has never been widely accepted and most international standards bodies do not include the poiseuille in their list of units. The third edition of the IUPAC Green Book, for example, lists Pa⋅s as the SI-unit for dynamic viscosity, and does not mention the poiseuille.

The equivalent cgs unit, the poise, symbol P, is most widely used when reporting viscosity measurements.

Definition

Dimension: ML⁻¹T⁻¹

Equivalent in SI base units: 1 Pl = 1 kg⋅m⁻¹⋅s⁻¹

References

1. ^{{citation |author=Russ Rowlett |year= 2018 |title=How Many? A Dictionary of Units of Measurement |url=http://www.ibiblio.org/units/|access-date=2018-10-04 }}

Bibliography

François Cardarelli (2004). Encyclopaedia of Scientific Units, Weights and Measures. Springer-Verlag London Ltd. {{ISBN|978-1852336820}}

2 : SI units|Units of dynamic viscosity

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