contributor author | M. S. Barrow | |
contributor author | S. W. J. Brown | |
contributor author | S. Cordy | |
contributor author | P. R. Williams | |
contributor author | R. L. Williams | |
date accessioned | 2017-05-09T00:13:28Z | |
date available | 2017-05-09T00:13:28Z | |
date copyright | March, 2004 | |
date issued | 2004 | |
identifier issn | 0098-2202 | |
identifier other | JFEGA4-27195#162_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/130260 | |
description abstract | We report a study of liquid jets formed by the collapse of bubbles under cavitation-generated pressure waves. Such jets involve an extensional flow which is characterized by high rates of extension, the latter being relevant to considerations of the flow of oils within dynamically loaded journal bearings. The technique reported here is found to be sensitive to the influence of extremely small concentrations of high molecular weight polymeric additive (xanthan gum). Commercial multigrade oils are also found to exhibit significantly larger resistance to extensional flow than their Newtonian counterparts and, insofar as the multigrade oils studied here are made viscoelastic by polymer additives, and possess significant levels of resistance to extension, the results provide evidence in support of a mitigating effect of viscoelasticity on cavitation, as mooted by Berker et al. [3]. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Rheology of Dilute Polymer Solutions and Engine Lubricants in High Deformation Rate Extensional Flows Produced by Bubble Collapse | |
type | Journal Paper | |
journal volume | 126 | |
journal issue | 2 | |
journal title | Journal of Fluids Engineering | |
identifier doi | 10.1115/1.1667889 | |
journal fristpage | 162 | |
journal lastpage | 169 | |
identifier eissn | 1528-901X | |
keywords | Pressure | |
keywords | Flow (Dynamics) | |
keywords | Deformation | |
keywords | Fluids | |
keywords | Viscosity | |
keywords | Engines | |
keywords | Electrical resistance | |
keywords | Bubbles | |
keywords | Jets | |
keywords | Polymers | |
keywords | Collapse | |
keywords | Petroleum | |
keywords | Polymer solutions | |
keywords | Cavitation | |
keywords | Viscoelasticity | |
keywords | Waves | |
keywords | Lubricants AND Rheology | |
tree | Journal of Fluids Engineering:;2004:;volume( 126 ):;issue: 002 | |
contenttype | Fulltext | |