Putu Wijaya Sunu, I.N.G. Wardana, A.A. Sonief, Nurkholis Hamidi
Friction factor cause by internally grooved pipe has been investigated experimentally. The result indicates that grooves reduce friction factor. However, in a certain groove numbers, it increases friction due to a series of fluid cycling near the pipe wall. ©2014 Putu Wijaya Sunu, I N.G. Wardana, A.A. Sonief and Nurkholis Hamidi.
Mechanical Engineering Department, Brawijaya University, Malang, Indonesia; Mechanical Engineering Department, Bali State Polytechnic, Bali, Indonesia
