Grashoff number, which is defined as g . β (Ts - T∞) ρ2. L3/μ2, is proportional to the ratio of buoyancy force to ____________ force?
Correct answer: B. Viscous
- A. Elastic
- B. Viscous
- C. Inertial
- D. None of these
Explanation
The Grashof number compares buoyancy effects caused by density variation with viscous resistance in natural convection. It is therefore analogous to the Reynolds number for forced convection and represents a buoyancy-to-viscous-force ratio.
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