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HRufus
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Homework Statement
This is a part of an assignment for a computational modelling paper requiring the modelling of couette flow between two (infinite) parallel plates in MATLAB. The lower plate is stationary while the upper plate moves at 0.1m/s, the plates are 0.01m apart and the no slip condition is applied to find the fluid velocity at the upper and lower edge. In the model the distance between the plates is broken down into 10 (equally sized) cells and fluid velocity at each point is established numerically over time until stability is reached. Essentially this gives a (near) linear velocity profile between the plates.
I have no problems with the numerical analysis, but a later section requires calculation of the maximum Reynolds number and a statement as to whether the flow is laminar or turbulent.
Homework Equations
Re = UL/v (v is given as 1E-6m2/s)
The Attempt at a Solution
The maximum speed occurs at the upper boundary (~0.1m/s) but what would be the appropriate length scale?
Thanks!