Galilei number [SEP] named after
Galilei number
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 condensers or chemical columns.
- "g": gravitational acceleration, (SI
is 7 x 7 years in length. All these time units share the number of seven or weekly cycle. Every unit is named after its first day, which is also the last day of yearly and 50-day cycles.
The first 50 days of the Somali Calendar Year of 2007-2008, in the Gregorian system, are from Saturday July 21, 2007, to Saturday Sep. 8, 2007. The same pattern applies to the first and the last days of the year, "while the first day of the year