Transport II Dimensionless Groups

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Chemical Engineering

University/Undergrad

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28 Terms

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Biot Number
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Drag Coefficient
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Froude Number (Fr)
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Definition of Biot Number
external heat transfer/internal heat transfer
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Definition of Drag Coefficient
Drag/inertial forces
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Froude Number Definition
inertial forces/gravitational forces
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Grashof Number (Gr)
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Grashof Number Definition
buoyancy due to thermal expansion/viscous dissipation
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Nusselt Number (Nu)
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Nusselt Number Definition
total heat transfer/conductive heat transfer
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\
\
Peclet Number (Pe)
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Peclet Number Definition
convection/diffusion
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Prandtl Number (Pr)
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Definition of Prandtl Number
momentum diffusivity/thermal diffusivity
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Rayleigh Number (Ra)
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Definition of Rayleigh Number
buoyancy due to thermal expansion/dissipation
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Reynolds Number (Re)
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Definition of Reynolds Number
inertial forces/viscous forces
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Womersley Number (alpha)
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Womersley number Definition
penetration depth/tube length
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=Nu/(RePr)
=Nu/(RePr)
Stanton Number
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Stanton Number Definition
heat transfer/convective heat transfer
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fanning friction factor
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definition of fanning friction factor
wall shear stress/dynamic pressure
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= ff/2
= ff/2
Colburn Analogy
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h=\~ p\*Uinf**Cp*(ff/2)*Pr^(-2/3)*
Colburn Analogy
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Schmidt Number (Sc)
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Definition of Schmidt Number
momentum diffusivity/mass diffusion