What is momentum and thermal diffusivity?
Answers
Answered by
1
Answer:
Physical Interpretation. Small values of the Prandtl number, Pr ≪ 1, means the thermal diffusivity dominates. Whereas with large values, Pr ≫ 1, the momentum diffusivity dominates the behavior. ... When Pr is small, it means that the heat diffuses quickly compared to the velocity (momentum).
Answered by
6
Answer:
Thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the ability of a material to conduct thermal energy relative to its ability to store thermal energy. High diffusivity means heat transfers rapidly.
Similar questions