Turbulent Drag Reduction Modeling
Abstract
A previously developed correlation that predicts, the pipe friction loss for drag reducing polymer solutions in turbulent pipe flow is made more rigorous and general by relaxing some of the assumptions made in the development of the original correlation. The resulting improved correlation has 15% better precision, follows the trends in the data better, and furnishes enhanced support for the energy dissipation model used to develop the correlation. An attempt was made to extend the model to enable the prediction of a maximum drag reduction asymptote by incorporating a linear viscoelastic model having a high shear limiting viscosity. The result was successful in qualitatively predicting maximum drag reduction, but was not quantitatively consistent with observed drag reduction data.
Description
Program year: 1985/1986Digitized from print original stored in HDR
Subject
drag reducing polymer solutionspipe flow
energy dissipation model
linear viscoelastic model
Citation
Jenkins, Richard (1986). Turbulent Drag Reduction Modeling. University Undergraduate Fellow. Available electronically from https : / /hdl .handle .net /1969 .1 /CAPSTONE -JenkinsR _1986.