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Boundary condition for PDE general mode

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How can I express the following boundary condition in PDE mode which contain two dependent variable

psi''=omega

This bc is for omega and omega equals to second derivative of psi

2 Replies Last Post 15.09.2009, 20:10 GMT-4

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Posted: 2 decades ago 15.09.2009, 20:08 GMT-4
This bc arises in natural convection in an enclosure.
This bc arises in natural convection in an enclosure.

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Posted: 2 decades ago 15.09.2009, 20:10 GMT-4
Psi is stream function and omega is vorticity.
Psi is stream function and omega is vorticity.

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