reyn
{{Other uses|Reyn (disambiguation)}}
In fluid dynamics, the reyn is a British unit of dynamic viscosity,
named in honour of Osbourne Reynolds, for whom the Reynolds number is also named.Juvinal, Robert C. & Marshek, Kurt M.; Fundamentals of machine component design. 2nd ed., 1991, pp. 480, {{ISBN|0-471-62281-8}}
Conversions
By definition,
:1 reyn = 1 lbf s in−2.
It follows that the relation between the reyn and the poise is approximately
:1 reyn = 6.89476 × 104 P.
In SI units, viscosity is expressed in newton-seconds per square meter, or equivalently in pascal-seconds. The conversion factor between the two is approximately
:1 reyn = 6890 Pa s.
References
External links
- [http://www.sizes.com/units/reyn.htm Reyn] History of the unit
Category:Units of dynamic viscosity
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