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Home > Hydraulic analogy

 
Electricity (as well as heat) was originally understood to be a kind of fluid. This hydraulic analogy is still of some use in teaching, not only for the fact that the names of the quantities are often struck by analogy.


type hydraulic electric thermal
quantity volume [m3] charge [C] heat [J]
potential pressure [Pa=J/m3] potential [V=J/C] temperature [K=J/]
flux current [m3/s] current [A=C/s] heat transfer rate [J/s]
flux density velocity [m/s] current density [C/m2s] heat flux [J/m2s]
linear model Poiseuille's law Ohm's law Fourier's law


Fluid dynamicsFluid dynamics is the study of fluids ( liquids and gases) in motion, and the effect of the fluid motion on fluid boundaries, such as solid containers or other fluids. Fluid dynamics is a branch of fluid mechanics, and has a number of subdisciplines, incl

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Topics: Hydraulic Analogy, Hydraulic Ram, Hydraulic Fill, Hydraulics...

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