Change of flow area in summary planes

bjorn_fejer · February 11, 2013, 07:22

I would like to ask for help regarding my Simulation on CFD 2013, my problem was the flow area of summary planes is different from inlet to outlet even-though I used same inside diameter of pipe. I have tried to move the cut planes, still they are having different in flow area.

I have used water for incompressible fluid. My parameters is as follows
Inlet=10 Bar pressure
Outlet=6 m/s velocity

Thank you in advance.

Bjorn Fejer

marktm250xc · February 18, 2013, 18:36

The area calculated is based off of the mesh topology. It is not uncommon to very small errors, especially for a coarse mesh due to the faceting and some round-off error. Refining the mesh helps the accuracy, but based on your flow vectors, your mesh seems OK. It should not be as far off as you show.

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February 18, 2013, 18:36		#2
marktm250xc New Member Mark Decker Join Date: Jan 2013 Location: Central Virginia Posts: 20 Rep Power: 2	The area calculated is based off of the mesh topology. It is not uncommon to very small errors, especially for a coarse mesh due to the faceting and some round-off error. Refining the mesh helps the accuracy, but based on your flow vectors, your mesh seems OK. It should not be as far off as you show.