Rayleigh Number(t) in Free convection Formulas

Rayleigh Number(t) is a dimensionless parameter that is a measure of the instability of a layer of fluid due to differences of temperature and density at the top and bottom. And is denoted by Ra_c.

Formulas to find Rayleigh Number(t) in Free convection

fxRayleigh number based on turbulence for annular space between concentric cylindersGo

fxRayleigh number based on turbulence for concentric spheresGo

fxRayleigh NumberGo

Free convection formulas that make use of Rayleigh Number(t)

fxRayleigh number based on length for annular space between concentric cylindersGo

fxModified Rayleigh number given Bingham numberGo

List of variables in Free convection formulas

fx Outer Diameter Go

fx Inner Diameter Go

fx Rayleigh Number Go

fx Length Go

fx Inside Diameter Go

fx Outside Diameter Go

fx Grashof Number Go

fx Prandtl Number Go

FAQ

What is the Rayleigh Number(t)?

Rayleigh Number(t) is a dimensionless parameter that is a measure of the instability of a layer of fluid due to differences of temperature and density at the top and bottom.

Can the Rayleigh Number(t) be negative?

{YesorNo}, the Rayleigh Number(t), measured in {OutputVariableMeasurementName} {CanorCannot} be negative.

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