Buoyant Force

Also found in: Dictionary, Thesaurus, Medical.

buoyant force

[′bȯi·ənt ′fȯrs]
(fluid mechanics)
The force exerted vertically upward by a fluid on a body wholly or partly immersed in it; its magnitude is equal to the weight of the fluid displaced by the body.

Buoyant Force


(buoyancy), the upward force that is the resultant of the pressure forces of a fluid on the surface of a body completely or partially immersed in the fluid. According to Archimedes’ principle, it is equal to the weight of the fluid that would fill the space occupied by the immersed portion of the body. The floating of bodies and of such structures as ships, boats, aerostats, and buoys is due to the buoyant force.

References in periodicals archive ?
For the geometries considered here, it will be shown that centrifugal casting will remove a large bubble, (~1 mm in diameter) from a solution spinning at thousands of revolutions per minute by buoyant forces before the bubble has sufficient time to dissolve completely, whereas smaller bubbles, (~10 [micro]m in diameter) will dissolve into solution before buoyant forces drive them to the liquid-air interface.
the goal is to compare the buoyant forces on two objects,
satisfied: that is, in the context of trying to compare the buoyant forces on two objects of the same volume, both fully immersed in the
A student who believed erroneously that the buoyant forces could be
The buoyant force created by this displaced water would be more than enough to support the weight of the ship.
The extra weight pushes the ship deeper into the water, which displaces more water and increases the buoyant force.
Generally, NV systems perform better when buoyant forces are stronger, therefore to be conservative, the design should definitely examine situations where ambient temperatures are high and therefore buoyant forces are low.
The larger the FHRR the larger the buoyant forces due to a greater mass of hot fire gases.
Airflow intensity is the largest above the thermal manikin due to the effects of buoyant forces from the whole body.
The period of maximum danger, I would guess, is while the glass is liquid, because it exerts strong buoyant forces on the mold,'' Angel said.