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Engineering Riddle – No. 5 (Fluid Mechanics) “Dimensionless”
I’m a fraction made of forces, comparing different strength I have no final units, only characteristic length I sample speed and weight and size, these are the things I measure My subject as it ebbs and flows, changes shape forever On top I show inertia, the power to keep things steady Below I measure thickness, stickiness and eddy In pipe or duct or channel, o’er wings be smooth, or rough I’ll tell you dominant motive, whether sheering’s weak or tough What am I?
This entry was posted in Engineering, Engineering Education and tagged fluid mechanics, laminar flow, Mechanical Engineering, reynolds number, turbulent flow. Bookmark the permalink.
In the study of fluid mechanics, the Reynolds Number is used to understand and predict the type of fluid flow in various situations. Here is a more detailed explanation.
http://en.wikipedia.org/wiki/Reynolds_number
What is the Reynolds Number?