equation of continuity

equation of continuity

[i′kwā·zhən əv ‚känt·ən′ü·əd·ē]

equation of continuity

equation of continuity
The equation of continuity states that (a) air mass flow is constant, as mass can neither be created nor destroyed, and (b) the product of a cross-sectional area (A), velocity (V), and density (ρ) is constant (K), or AVρ = K. It assumes that because pressure changes are small, they have little effect on density and, therefore, AV= K or V= K/A. Hence, a reduced cross section gives a greater velocity.
References in periodicals archive ?
It should be pointed out that the characteristic of inlet flow varies with time; therefore unsteady state equation of continuity for zinc in the contactor should be solved to obtain this parameter.
For mathematical formulation Darcy's law, equation of continuity, the standard relations of saturations, pressures, permeability of injected liquid and native liquids are considered.
The velocity components are expressed in terms of a dimensionless stream function [psi]([xi], [theta]) such that the equation of continuity [nabla] * q = 0 is satisfied.
Each component's influence on the total filter resistance was then formulated through the use of Forchheimer-extended Darcy's Law, Bernoulli's equation, and the equation of continuity.
In view of the equation of continuity we introduce the stream function [psi] as
Heat transfer in the gas phase is generally by convection, and can be described by the equation of continuity, motion, and energy.
The general equation from which the time dependent temperature distribution may be calculated is obtained from equation (1) and the equation of continuity
The pressure component was excluded from the equation of motion by relating pressure to the equation of continuity manipulated by the huge constant penalty number [[lambda].
while the imaginary part is the equation of continuity [partial derivative]P/[partial derivative]t + + div(PV) = 0.
The governing equations (the equation of continuity, the equation of motion, the constitutive equation, the equation of energy, and the equation for the velocity gradient tensor) are discretized by the weight residual equations.