ABSTRACT
A representative inner flow of an electrically nonconducting fluid is a flow in a straight circular pipe that is driven by a pressure gradient. Its velocity profile is dependent on the Reynolds number Re , which is defined by () R e = U B a ν . https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429148958/893f63fb-838b-43d9-9be3-ee81e9ce7f6a/content/eq1.tif"/>
