In fluid dynamics, the Galilei number (Ga), sometimes also referred to as Galileo number (see discussion), is a dimensionless number named after Italian scientist Galileo Galilei (1564-1642).

It may be regarded as proportional to gravity forces divided by viscous forces. The Galilei number is used in viscous flow and thermal expansion calculations, for example to describe fluid film flow over walls. These flows apply to condensors or chemical columns.

\[ Ga = \frac{g \cdot L^3}{\nu^2}\]

See also

References

  • VDI-Wärmeatlas; 5., extended Edition; VDI Verlag Düsseldorf; 1988; page Bc 1 (German)
  • W. Wagner; Wärmeübertragung; 5., revised Edition; Vogel Fachbuch; 1998; page 119 (German)

External links

bs:Galilejev broj

bg:Галилеево число ca:Nombre de Galilei de:Galilei-Zahl es:Número de Galilei fa:عدد گالیله fr:Nombre de Galilée nl:Getal van Galilei km:ចំនួនហ្គាលីលេ fi:Galilein luku