What is Fluid mechanics: Definition and 755 Discussions

Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.:3
It has applications in a wide range of disciplines, including mechanical, civil, chemical and biomedical engineering, geophysics, oceanography, meteorology, astrophysics, and biology.
It can be divided into fluid statics, the study of fluids at rest; and fluid dynamics, the study of the effect of forces on fluid motion.:3
It is a branch of continuum mechanics, a subject which models matter without using the information that it is made out of atoms; that is, it models matter from a macroscopic viewpoint rather than from microscopic. Fluid mechanics, especially fluid dynamics, is an active field of research, typically mathematically complex. Many problems are partly or wholly unsolved and are best addressed by numerical methods, typically using computers. A modern discipline, called computational fluid dynamics (CFD), is devoted to this approach. Particle image velocimetry, an experimental method for visualizing and analyzing fluid flow, also takes advantage of the highly visual nature of fluid flow.

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    Flow Rate of Water vs. Orifice Diameter: Get Help

    One would assume that when the area of an orifice is doubled then twice as much water will flow through this orifice. Hence we assume a proportional relationship between the two. However use of a garden hose leads us to believe that increasing the area of the orifice decreases the velocity of...
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    Fluid Mechanics: Density & Balances in Beaker B

    Block A hangs by a cord from spring balance D and is submerged in a liquid C contained in beaker B. The mass of the beaker is 1.00 kg and the mass of liquid is 1.80 kg. Balance D reads 3.50 kg and balance Balance E( supporting beaker B) reads 7.50 kg. The volume of block A is 3.80 * 10^-3...
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    Fluid Mechanics Investigation

    (Thanks to the guy who answered my original thread) For a physics project I'm investigating the effects on the flow rate of fluids. I'm going to find a relationship between orifice diameter and flow rate (keeping things simple I'll assume it's a circular orifice for a cylindrical can). For...
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    Fluid Mechanics and Styrofoam slab

    Hi, I really need help with the following two questions. 1.) A Styrofoam slab has a thickness of 3.8 cm and a density of 303 kg/m^3. When a 73.2 kg swimmer is resting on it, the slab floats in fresh water with its top at the same level as the water surface. What is the...
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    Fluid Mechanics of helium-filled balloon

    Hi, I would really appreciate help in solving the following problem. A helium-filled balloon is tied to a 2.00 m long, 0.050 kg uniform string. The balloon is spherical with a radius of 0.400 m. When released, the balloon lifts a length h of string and then remains in...
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