Benedict-Webb-Rubin equation
Encyclopedia
The Benedict–Webb–Rubin equation (BWR), named after M. Benedict, G. B. Webb, and L. C. Rubin, is an equation of state
used in fluid dynamics
.
by Professor Kenneth E. Starling of the University of Oklahoma:
Values of the various parameters for 15 substances can be found in K.E. Starling, Fluid Properties for Light Petroleum Systems. Gulf Publishing Company (1973).
where:
Equation of state
In physics and thermodynamics, an equation of state is a relation between state variables. More specifically, an equation of state is a thermodynamic equation describing the state of matter under a given set of physical conditions...
used in fluid dynamics
Fluid dynamics
In physics, fluid dynamics is a sub-discipline of fluid mechanics that deals with fluid flow—the natural science of fluids in motion. It has several subdisciplines itself, including aerodynamics and hydrodynamics...
.
The original BWR equation
The BWRS equation of state
A modification of the Benedict-Webb-Rubin equation of stateEquation of state
In physics and thermodynamics, an equation of state is a relation between state variables. More specifically, an equation of state is a thermodynamic equation describing the state of matter under a given set of physical conditions...
by Professor Kenneth E. Starling of the University of Oklahoma:
- ρ = the molar density.
Values of the various parameters for 15 substances can be found in K.E. Starling, Fluid Properties for Light Petroleum Systems. Gulf Publishing Company (1973).
The Modified BWR equation (mBWR)
A further modification of the Benedict-Webb-Rubin equation of state by Jacobsen and Stewart:where: