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mass flowrate is non conserved

Dear all, I was trying to simulate the water flow into a system with two inlets and three outlets and I used the ''surface integration'' io order to compute the total mass flow rate and I found that...

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Re: mass flowrate is non conserved

Hello Antonio, We recommend an upgrade to the current version, 4.4, in which several mass conservation issues have been addressed. kind regards Niklas Dear all, I was trying to simulate the water flow...

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Re: mass flowrate is non conserved

Dear Antonio, is the mass flowrate not conserved even if you increase the mesh resolution? Does the error change with the mesh or is constant? Regards. -- Marino Miccio Chemical...

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Re: mass flowrate is non conserved

Hello Niklas, unfortunately I have not the possibility to use the new version for the moment and I would like to understand which kind of improvements have been done in regarding. Best regards. Antonio

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Re: mass flowrate is non conserved

Dear Marino, in the case of the cylinder, considering the Physics controlled mesh provided by COMSOL, varying from the extremely coarse to the coarse mesh, the percentage difference decreases. Which is...

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Re: mass flowrate is non conserved

First of all try to get the latest version this helps a lot for mass flow calculations. Next to that try to make your tube longer and plot streamlines sometimes they are re-entering the surface (when a...

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