Archimedes number


Also found in: Wikipedia.

Archimedes number

[¦är·kə¦mēd‚ēz ′nəm·bər]
(fluid mechanics)
One of a dimensionless group of numbers denoting the ratio of gravitational force to viscous force.
References in periodicals archive ?
Archimedes Number (Ar), a non-dimensional parameter, is a ratio of the upward buoyancy force and the inertial force of the downward air jet.
This study further indicates that for non-isothermal conditions Archimedes Number can be a good initial indicator for estimating the directionality of the supply air jet.
Archimedes Number (Ar), a non-dimensional parameter, is a ratio of the buoyancy force and the inertial force of the downward air jet.
However, such acceleration of centerline velocity or associated Archimedes Number particulates flow path, does not provide any insights into the flow path of the particulates.
[12] was also investigated of a single bubble rise behavior in a wide range of Morton number, Mo ~ [10.sup.-7] - 15 and Archimedes number, Ar ~ 0.06-8349 to develop an empirical correlation for prediction of drag coefficient.
The similarity principle shows that any nondimensional velocity in the room can be given as a unique function of the Archimedes number, Ar, if the flow in the room is a fully developed turbulent flow (high Reynolds number flow) (see Tahti and Goodfellow [2001]).
The ordinate is the dimensionless terminal velocity, which is equated to a ratio of the particle Reynolds number and the cube root of the Archimedes number:
The Archimedes number (Ar) is the preferred parameter to use in estimating the relative importance of the buoyancy in the CFD simulations (Fluent 2005).
The similarity principles show that any dimensionless velocity in the room can be given as a unique function of the Archimedes number if flow in the room is fully developed turbulent (high Reynolds number flow); see Tahti and Good-fellow (2001).
The room inlet Archimedes number (Ar), defined in Equation 1, is the ratio of thermal buoyancy force to inertial force.
The principles of similarity show that any dimensionless velocity in the room can be given as a unique function of the Archimedes number if the flow in the room is a fully developed turbulent flow (high Reynolds number flow) (see Tahti and Goodfellow [2001]).