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Brinkman Number Equation and Calculator
Fluids Flow Design and Engineering
Heat Transfer Engineering
Brinkman Number Equation and Calculator
The Brinkman number (Br) is a dimensionless number related to heat conduction from a wall to a flowing viscous fluid, commonly used in polymer processing.
Eq. 1
Br = µ vb2 / ( k ( Tb - To )
Where:
ยต = Dynamic Viscosity (Pa-s)
vb = Velocity at Outer Perimeter (cm/s)
k = Thermal
Conductivity (W/cm-K)
Tb = Temperature at Outer Perimeter (K)
To =
Temperature at Inner Perimeter (K)
Br = Brinkman Number (dimensionless)
Reference:
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons,Chapter: 10, Page: 300.
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