Which of the following equations as suggested by Colebrook and White
gives the increase in roughness of a new surface (ε0
) with age/time (t)
(where, ε = roughness of the surface after time't'. α = a co-efficient to be
experimentally determined)?
(A) ε = ε0 + α.t
(B) ε = ε0 + α.t
2
(C) ε = ε0 + α.t
3
(D) ε = ε0 + α.t
gives the increase in roughness of a new surface (ε0
) with age/time (t)
(where, ε = roughness of the surface after time't'. α = a co-efficient to be
experimentally determined)?
(A) ε = ε0 + α.t
(B) ε = ε0 + α.t
2
(C) ε = ε0 + α.t
3
(D) ε = ε0 + α.t