Natural convection is characterised by__________________?
Correct answer: A. Grashoff number
- A. Grashoff number
- B. Peclet number
- C. Reynolds number
- D. Prandtl number
Explanation
Natural convection is driven by buoyancy caused by density differences, and its relative strength is measured by the Grashof number. Reynolds number characterises forced convection, while Prandtl and Peclet numbers describe property and transport relationships.
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