1Department of Mechanical Engineering, Krishna Institute of Engineering and Technology, Ghaziabad, (India) E-Mail: .
2Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi (India), E-Mail: .
This paper is the analytical study of the results from various relations for finding the friction factor proposed by different researchers for turbulent flow in rough pipe. The analysis shows that all the correlations can be divided into two groups. In each groups there is a particular range of Reynolds number in which results are very close but this range is different in each group.
Friction Factor, Relative Surface Roughness, Turbulent Flow, Reynolds Number
