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Laser Heating of a Silicon Wafer Model ID: 13835

Posted 7 janv. 2015, 09:20 UTC−5 0 Replies

Yavuz Öztürk
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I think I should have written this somewhere else but since it took me at least half a day to understand that something is wrong with this model, I thought it will worth writing here. This model has a fundamental error since the rotational frequency is wrongly accepted as angular velocity. The difference is only a factor of 2pi. What I mean is: in the model v_rotation is defined in terms of rpm and it is converted to Hz by COMSOL automatically. On the other hand the rotation is defined in terms of translation vectors (u's in COMSOL) as ux = -y*v_rotation, uy= x*v_rotation, which is in fact should be ux = -2*pi*y*v_rotation, uy= 2*pi*x*v_rotation. Try yourselves and see.. Thanks a lot.
0 Replies Last Post 7 janv. 2015, 09:20 UTC−5
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