Prandtl number is the ratio of________________?
Correct answer: B. Momentum diffusivity to thermal diffusivity
- A. Mass diffusivity to thermal diffusivity
- B. Momentum diffusivity to thermal diffusivity
- C. Thermal diffusivity to mass diffusivity
- D. Thermal diffusivity to momentum diffusivity
Explanation
Prandtl number is defined as the ratio of momentum diffusivity, represented by kinematic viscosity, to thermal diffusivity. It therefore compares velocity-profile development with temperature-profile development.
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