What is the physical significant of prandtl number? Question does the value of the  prandtl number depend on the type of flow, or the flow geometry? Does the  prandtl number of air change with pressure? does it change your temperature?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter7: Forced Convection Inside Tubes And Ducts
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What is the physical significant of prandtl number? Question does the value of the  prandtl number depend on the type of flow, or the flow geometry? Does the  prandtl number of air change with pressure? does it change your temperature?

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