At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? A)1 B) 1 D)None of these

Question

At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical?
A)1
B)< 1
C)> 1
D)None of these

Quizplus · Accepted Answer

The Prandtl number at which the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical is 1. The Prandtl number is the ratio of momentum diffusivity (kinematic viscosity) to thermal diffusivity, and when it equals 1, it indicates that the rates of momentum and heat transfer are the same, leading to identical boundary layer thicknesses.

At What Value of Prandtl Number, the Hydrodynamic and Thermal