Fanning equation is given by (ΔP/ρ) = 4f (L/D) (v2/2gc). It is applicable to _____________ region flow? August 27, 2021March 10, 2019 by admin Fanning equation is given by (ΔP/ρ) = 4f (L/D) (v2/2gc). It is applicable to _____________ region flow? A. Transition B. Laminar C. TurbulentD. Both B. and C.