June 2005

Piping/Fluid Flow

Explicit friction factor correlation for pipe flow analysis

Use this representation of the universal law of friction to obtain accurate estimates

Goudar, C. T., Bayer HealthCare; Sonnad, J. R., University of Oklahoma Health Sciences Center

Common tasks performed during piping system design include computing pressure drop, volumetric flowrate and pipe diameter. The Darcy-Weisbach equation describes the relationship between these parameters:        where: DP = pressure drop f = Fanning friction factor r = fluid density L = pipe length V = fluid velocity R = pipe d

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