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Marangoni convection on droplet

Posted 13.10.2016, 16:46 GMT-4 0 Replies

Farouk Chourou
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Hello,

I am trying to include the Marangoni convection on a 2D-axis-symmetric sphere. I know that I have to use the following Weak contribution test(u)*(gamma*T_derivative), but I don't know how to get the tangential derivative, It is clearly not Tr, neither Tz, and should be an angular derivative, but the only included angular derivative in Comsol in the Tphi, which is the third coordinate which vanishes when using the axis-symmetry.

Is there any way to get access or derive it?

Thanks in advance,

Farouk
0 Replies Last Post 13.10.2016, 16:46 GMT-4
COMSOL Moderator

Hello Farouk Chourou

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