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ρ f = Mass density of the fluid; V imm = Immersed volume of body in fluid; F b = Buoyant force; F g = Gravitational force; W app = Apparent weight of immersed body; W = Actual weight of immersed body
In physics, a body force is a force that acts throughout the volume of a body. [1] Forces due to gravity, electric fields and magnetic fields are examples of body forces. Body forces contrast with contact forces or surface forces which are exerted to the surface of an object. Fictitious forces such as the centrifugal force, Euler force, and the ...
There are 2 body forces acting on the channel fluid, namely, gravity and friction: =, +, where f x,g is the body force due to gravity and f x,f is the body force due to friction. f x , g can be calculated using basic physics and trigonometry: [ 27 ] F g = sin ( θ ) g M {\displaystyle F_{g}=\sin(\theta )gM} where F g is the force of gravity ...
Archimedes' principle (also spelled Archimedes's principle) states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. [1] Archimedes' principle is a law of physics fundamental to fluid mechanics. It was formulated by Archimedes of ...
A subdiscipline of fluid mechanics – branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them. A biological science – field that studies the role of physical processes in living organisms. For an example of a biological area involving fluid dynamics, see hemodynamics.
Fluid statics or hydrostatics is the branch of fluid mechanics that studies fluids at hydrostatic equilibrium [1] and "the pressure in a fluid or exerted by a fluid on an immersed body". [ 2 ] It encompasses the study of the conditions under which fluids are at rest in stable equilibrium as opposed to fluid dynamics , the study of fluids in motion.
Note that the inertia force is in front of the phase of the drag force: the flow velocity is a sine wave, while the local acceleration is a cosine wave as a function of time. In fluid dynamics the Morison equation is a semi-empirical equation for the inline force on a body in oscillatory flow.
In physics and engineering, a free body diagram (FBD; also called a force diagram) [1] is a graphical illustration used to visualize the applied forces, moments, and resulting reactions on a free body in a given condition. It depicts a body or connected bodies with all the applied forces and moments, and reactions, which act on the body(ies).