@wikipedia
Dimensionless quantity calculated as the ratio of as the ratio of momentum diffusivity (kinematic viscosity)
to thermal diffusivity :| LaTeX Math Block |
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{\rm Pr} = \frac{\nu}{a} |
For most gases over a wide range of temperature and pressure, Prandtl number is approximately constant at around
It is dynamic property of the substance at a given pressure and temperature: | LaTeX Math Inline |
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| body | --uriencoded--%7B\rm Pr%7D = %7B\rm Pr%7D(p, T) |
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.
High values mean that heat convection dominates heat conduction.
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| LaTeX Math Inline |
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| body | --uriencoded--%7B\rm Pr%7D = 7.56 |
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See also
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Physics / Thermodynamics / Heat Transfer
[ Dimensionless Heat Transfer Numbers ]
