Transient Transient Yossi & Jagger Category="Civil engineering"Category="Electrical engineering"Category="Time"Transient means passing with time. For example, a damped oscillator needs some time after a temporary disturbance to reach the equilibrium again, and after a permanent change in system variables, to reach the new equilibrium.

In Chemical engineering

A system is said to be in a transient state when a process variable has been changed and the system has not yet reached steady-state. Example: When a chemical reactor is being brought into operation, the concentrations, temperatures, and fluid flow regime are changing with time.

In Civil engineering

Transient is used to refer to a Water hammer pressure wave. In a pipe network, when a valve or pump is suddenly shut off, a region of high pressure builds up immediately behind the valve/pump. The high-pressure region grows as water, which was initially flowing out of the valve, suddenly becomes stationary. The border of the high-pressure zone is referred to as a pressure wave, or transient.

In Electrical engineering

A transient system is a short-lived oscillation in a system caused by a sudden change of voltage, current, or load. Engineers use voltage regulators and surge suppressors to prevent transients in electricity from affecting delicate equipment.

See also