Physics:Power number
From HandWiki
- For Newton number, see also Kissing number in the sphere packing problem.
The power number Np (also known as Newton number) is a commonly used dimensionless number relating the resistance force to the inertia force.
The power-number has different specifications according to the field of application. E.g., for stirrers the power number is defined as:[1]
- [math]\displaystyle{ N_\mathrm{p} = \frac{P}{\rho n^{3} D^{5}} }[/math]
with
References
- ↑ Seinfeld, John H (1991). Wei, J; Anderson, J L; Bischoff, K B. eds. Advances in Chemical Engineering. Academic Press. p. 44. ISBN 978-0-08-056564-4. https://books.google.com/books?id=4g0W3yuZmGsC&pg=PA44.
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