Archimedes number
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An Archimedes number (not to be confused with Archimedes constant, π), named after the ancient Greek scientist Archimedes, to determine the motion of fluids due to density differences, is a dimensionless number in the form:
- <math>{\rm Ar} = \frac{g L^3 \rho_\ell (\rho - \rho_\ell)}{\mu^2}</math>
where:
- g = gravitational acceleration (9.81 m/s²),
- ρl = density of the fluid, <math>kg/m^3</math>
- ρ = density of the body, <math>kg/m^3</math>
- μ = dynamic viscosity, <math>kg/sm</math>
- L = characteristic length of body, m
[edit] See also
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de:Archimedes-Zahl
es:Número de Arquímedes fr:Nombre d'Archimède it:Numero di Archimede nl:Getal van Archimedes pl:Liczba Archimedesa
