Electricity Fluid Analogy

The flow variable in an energy domain is the variable analogous to velocity in the mechanical domain.

Electricity fluid analogy. This table compares the basic analogous variables in electrical and hydraulic technologies. Electric current flow is proportional to voltage difference according to ohm s law and both the bird s feet are at the samevoltage. Since electric current is invisible and the processes at play in electronics are often difficult to demonstrate the various electronic components are represented by hydraulic equivalents. Pccl jean pierre fournat.

Voltage pressure analogy a battery is analogous to a pump in a water circuit. Electricity was originally understood to be a kind of fluid and the names of certain electric quantities are derived from hydraulic equivalents. Current i flow rate q. The higher the pressure the higher the flow of water.

Similarly the higher the voltage the higher the current. November 13 2015 by trevor gamblin. The analogous pairs are voltage and pressure. In the electrical domain the effort variable is voltage and the flow variable is electrical current.

Electrical resistance and hydraulic resistance. The electronic hydraulic analogy is the most widely used analogy for electron fluid in a metal conductor. A pump takes in water at low pressureand does workon it ejecting it at high pressure. Hydraulic analogy interactive free flash animation to understand the difference between voltage and current.

In this analogy the pressure is the voltage and the flow of water is the current. Conflicts exist in the algebraic and schematic notations for the various quantities. A battery takes in chargeat low voltage does work on it and ejects it at high voltage. The understanding of some processes in fluid technology is improved if use is made of the analogies that exist between electrical and hydraulic laws.

Ml when flow rate e g. Power conjugate variables in the analog domain are chosen that bear some resemblance to force and velocity. Understanding electricity with hydraulics. Ml s is integrated with respect to time.

As with all analogies it demands an intuitive and. Current and fluid flow. The fluid analogy with pressure similar to voltage and fluid flow similar to electrical current leads to the following. Electrical charge and fluid volume.

The best place to start a discussion on electric hydraulic analogies is with the definitions and units of the basic variables which are given in table 1. Given specific boundary conditions it is possible to set. Large p t frac 1 c int 0 t q tau d tau or large p t frac 1 c left v t v 0 right the latter shows explicitly that we get volume e g. Simulation physics and chemistry by a clear learning in high school middle school upper school secondary school and academy.

Want a scary job. Since currentflow is necessary for electric shock the bird is quite safe unless it simultaneously touches another wire with a different voltage.