Fluid mechanicsΒΆ
Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.
Ideal fluid
An ideal fluid is a model of fluids often used in fluid mechanics to approximate the behavior of real fluids. Ideal fluids are:
non-viscous, i.e. there is no internal resistance to flow;
in steady, or laminar, flow;
incompressible;
irrotational, i.e. its particles undergo no rotation around their center of mass.
Contents:
- Bulk stress is bulk modulus times strain
- Capillary height via surface tension and contact angle
- Dynamic pressure from density and flow speed
- Efficiency of hydraulic press from force and height
- Efflux speed via height
- Efflux speed via hydrostatic pressure and density
- Excess pressure under curved surface of bubble
- Force to area ratio in hydraulic press
- Froude number via flow speed and characteristic length
- Hydrostatic pressure via density and height
- Hydrostatic pressure via density, height and acceleration
- Inner pressure is constant
- Inner pressure is sum of pressures
- Laplace pressure is pressure difference
- Mach number is flow speed over speed of sound
- Nusselt number via thermal parameters and characteristic length
- Pressure difference at pipe ends from dynamic viscosity and flow rate
- Pressure of liquid in vessel moving horizontally
- Pressure of liquid in vessel moving vertically
- Reynolds number via fluid parameters and characteristic length
- Shear stress is proportional to speed gradient
- Submerged volume of floating body via density ratio
- Surface tension force via surface tension and length
- Volume flux is constant
- Apparent weight of a fully submersed body in fluid