At what value of Prandtl number, conduction is negligible in the
turbulent core of a fluid flowing through a heated pipe?
(A) 0.5
(B) < 0.5
(C) > 0.6
(D) < 0.1
turbulent core of a fluid flowing through a heated pipe?
(A) 0.5
(B) < 0.5
(C) > 0.6
(D) < 0.1