Fanning equation is given by (ΔP/ρ) = 4f (L/D) (v2/2gc). It is applicable to _____________ region flow?
Correct answer: D. Both B. and C.
- A. Transition
- B. Laminar
- C. Turbulent
- D. Both B. and C.
Explanation
The Fanning friction-factor equation is used for both laminar and turbulent flow, although the friction-factor correlation differs in the two regions. Transition flow is not normally assigned a reliable single correlation.
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