✦ LIBER ✦

Drag-reduction effectiveness of polymer solutions in the turbulent-flow rheometer: A catalog

✍ Scribed by Hoyt, J. W.

Publisher: Wiley (John Wiley & Sons)
Year: 1971
Tongue: English
Weight: 288 KB
Volume: 9
Category: Article
ISSN: 0449-2986
DOI: 10.1002/pol.1971.110091110

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Measurement of drag reduction in polymer

Measurement of drag reduction in polymer added turbulent flow

✍ Nam-Jin Kim; Sin Kim; Sang Hoon Lim; Kuan Chen; Wongee Chun 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 916 KB

In this study, polyethylene oxides were used as a drag reducing additive. The effect of the concentration and molecular weight of the polymer on the level of drag reduction was examined using, 4 molecular weights (2 × 10 5 , 4×10 5 , 9×10 5 and, 4 × 10 6 ) and 4 concentrations (1, 5, 10 and, 20 wppm

Characterization of drag reduction and d

Characterization of drag reduction and degradation effects in the turbulent pipe flow of dilute polymer solutions

✍ R. Y. Ting; R. C. Little 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 596 KB

Turbulent drag reduction in dilute polym

Turbulent drag reduction in dilute polymer solutions: The Deborah number dilemma

✍ R.J. Gordon 📂 Article 📅 1971 🏛 Elsevier Science ⚖ 226 KB

Drag reduction effectiveness of dilute a

Drag reduction effectiveness of dilute and entangled xanthan in turbulent pipe flow

✍ Nicholas B. Wyatt; Casey M. Gunther; Matthew W. Liberatore 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 583 KB

The ability to reduce the frictional drag in turbulent flow in pipes and channels by addition of a small amount of a high molecular weight polymer has application in myriad industries and processes. Here, the drag reduction properties of the polyelectrolyte xanthan are explored in differing solvent

A molecular approach to predicting the o

A molecular approach to predicting the onset of drag reduction in the turbulent flow of dilute polymer solutions

✍ Harry C. Hershey; Jacques L. Zakin 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 1011 KB

Abstraa-The signifi~t variables in drag reduction have been separated into two classitications, flow variables and solution variables. A theory has been offered which permits prediction of the critical Reynolds number in the turbulent flow of polymer solutions. The theory states that the relaxation

Reynolds-averaged modeling of polymer dr

Reynolds-averaged modeling of polymer drag reduction in turbulent flows

✍ Gianluca Iaccarino; Eric S.G. Shaqfeh; Yves Dubief 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 678 KB

A novel eddy viscosity model for predicting friction drag reduction induced by polymers in turbulent wall-bounded flows is presented. The approach is based on the elliptic relaxation model modified to account for the modified Reynolds-stress equilibrium established by the presence of elastic polymer