Saffman, P. G. (1977) Dependence of effective slip on wall roughness in dilute polymer solutions. Physics of Fluids, 20 (10, Pa). S272-S275. ISSN 0031-9171. doi:10.1063/1.861740. https://resolver.caltech.edu/CaltechAUTHORS:SAFpof77
![[img]](https://authors.library.caltech.edu/style/images/fileicons/application_pdf.png)
|
PDF
See Usage Policy. 279kB |
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:SAFpof77
Abstract
A hypothesis is made for the modification of a complete turbulence model to take account of a dilute polymer concentration. The equations are integrated in the wall layer and give the effective slip u*DeltaB as functions of wall roughness and empirical polymer properties, where u* is the friction velocity and DeltaB is the change of the constant in the logarithmic law of the wall. Results in qualitative agreement with experiment are found.
| Item Type: | Article | ||||||
|---|---|---|---|---|---|---|---|
| Related URLs: |
| ||||||
| Additional Information: | Copyright © 1977 American Institute of Physics. I wish to thank Dr. Fausto Milinazzo for invaluable help with the numerical solution of the differential equations. This work was supported by the Energy Research and Development Administration (AT 04-3-767). | ||||||
| Subject Keywords: | SLIP VELOCITY, TURBULENT FLOW, ADDITIVES, BOUNDARY LAYERS, DRAG Q1, POLYMERS, ROUGHNESS, WALLS | ||||||
| Issue or Number: | 10, Pa | ||||||
| DOI: | 10.1063/1.861740 | ||||||
| Record Number: | CaltechAUTHORS:SAFpof77 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:SAFpof77 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 10143 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 15 Apr 2008 | ||||||
| Last Modified: | 08 Nov 2021 21:05 |
Repository Staff Only: item control page
