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Zeros of Functions: Inputs to a given function that result in an output of zero. Zeros of a function are the x-intercepts of the function’s graph.
Zeros of Functions: Inputs to a given function that result in an output of zero. Zeros of a function are the x-intercepts of the function’s graph.
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3. Any use of this site or any of the content of this site that is inconsistent with these terms is strictly prohibited.
Fluid Mechanics: The study of the behavior of a gas or liquid that is in rest or in motion.
Hydrostatics: The study of fluids at rest or constant velocity.
Kinematics: The study of the geometry of fluid motion.
Fluid Dynamics: The study of the forces that cause accelerated motion.
Solid: Maintains a definite shape and volume. Solids maintain their shape because the molecules or atoms are densely packed and are held tightly together. The cohesive forces in a solid prevent movement, except for slight vibrations, resulting in the limited deformation of the solid when a load is placed on it.
Liquid: A fluid that is composed of molecules that are more mobile in comparison to a solid. Due to weaker intermolecular forces, liquids do not hold their shape. Liquids flow and take the shape of their container. Because of their molecular spacing, liquids can resist compressive forces when confined.
Gas: A fluid that fills the entire volume of its container. Gases are composed of molecules that are much farther apart than those of a liquid. The molecules of a gas are free to travel away from one another until a force of repulsion pushes them away from other gas molecules, or from the molecules on the surface of a container.
Continuum: A continuous distribution of matter, leaving no empty space. Allows for the use of average properties of the fluid at any point throughout its volume.
A fluid and its flow characteristics are described using combinations of units based on five basic quantities: length, time, mass, force, and temperature.
U.S. Customary / Foot-Pound-Second : Length (feet / ft), time (seconds / s), and force (pounds / lb), mass (slug).
Slug: 1 slug is equal to the amount of matter accelerated at 1 ft/s2 when acted upon by a force of 1 lb. (slug = lb ⋅ s2/ft).
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