Article ID Journal Published Year Pages File Type
671645 Journal of Non-Newtonian Fluid Mechanics 2006 9 Pages PDF
Abstract

The issue of whether extensional viscosity is a concept that causes more confusion than enlightenment is addressed. This author’s view is that misuse of the concept certainly has caused much confusion and, although it is in principle a simple and straightforward idea, it continues to be misused. What is straightforward is the formal definition of extensional viscosity, for steady uniform extensional flow. What gives rise to confusion is the careless use of measurements in flows which are not both steady and spatially uniform.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
Authors
,