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[swak4Foam] how to implement second order derivative with groovyBC like the formula?

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Old   July 9, 2013, 08:32
Default how to implement second order derivative with groovyBC like the formula?
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in this article in equation 27 second order derivative of pressure is set to zero
how can implement it as a stable BC for unsteady cases in groovyBC(if not possible then well without it)?
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