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Calculating hydraulic head using interFoam

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Old   April 9, 2020, 19:38
Default Calculating hydraulic head using interFoam
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JCS
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Verdant Frond is on a distinguished road
Hi everyone!

First off, I'm not very experienced with OpenFOAM and might easily have missed something here. That said, I have searched through the forum and seen this question turn up a few times, but unfortunately with no solutions. I'm interested in finding the hydraulic head [m] for free surface flow, using interFoam. From what I gather, hydraulic head can (in principle) be calculated easily by dividing the total pressure (p) by (rho x g).

So my question is: is there a way to do this calculation in a practical way, e.g. by way of a function in controlDict?

Furthermore, looking through the user guide, it seems to me that creating a new function object would be a smart way to do it, because the hydraulic head can then be written directly into the time-folders. I found the following document, describing how to create user defined function objects. The document gives a general outline of how to create and compile a new function object, but I haven't got a lot of experience coding. If anyone could point me in the right direction, I would be very grateful. I'll continue to work the problem and if there is any interest, I can post the case and any progress. Other thoughts and solutions are also more than welcome!

Best regards,
JCS
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