In physical terms, Schmidt number means _________________?
Correct answer: C. Momentum diffusivity/mass diffusivity
- A. Thermal diffusivity/mass diffusivity
- B. Thermal diffusivity/momentum diffusivity
- C. Momentum diffusivity/mass diffusivity
- D. Mass diffusivity/thermal diffusivity
Explanation
The Schmidt number compares momentum diffusivity with mass diffusivity, so Sc = ν/D or μ/(ρD). Thermal diffusivity belongs in the analogous Prandtl number, not the Schmidt number.
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