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How to obtain values of Energy, Continuity and X, Y, Z Momentum in StarCCM+ |
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April 3, 2018, 12:02 |
How to obtain values of Energy, Continuity and X, Y, Z Momentum in StarCCM+
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#1 |
New Member
Join Date: Oct 2017
Posts: 5
Rep Power: 9 |
Hello everyone,
As the title suggests, I would like to obtain/access the values of Continuity, Energy and all the Momentums within the fluid domain in StarCCM+. Sort of like how you can use a predefined field function of Pressure Coefficient to obtain the values of Cp. Is there any method as to how to obtain such values since I could not find any predefined field function? Thanks |
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April 4, 2018, 08:24 |
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#2 |
Senior Member
Sebastian Engel
Join Date: Jun 2011
Location: Germany
Posts: 567
Rep Power: 21 |
Hello,
no, there aren't predefined functions the way you want them, except one, i guess. But they are easy to obtain. have a look at the Solver settings, such as the Coupled Solver. In its options you'll find one which is called "Temporary Storage Retained". Activate it. Then you'll have access to the Residuals and Gradiants and intermediate quantities. "Continuity" can be found under Mass Imbalance, while "Energy" is Total Enthalpy substracted by pressure/density (E = H - p/rho). However the Momentum always needs a reference point, right? To get the momentum of a certain surface, you'll find a momentum report. If you are looking for the local body forces you need to do a bit more. Have a look into the manual and look for equation 150ff for more information. Best regards, Sebastian |
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April 4, 2018, 11:54 |
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#3 | |
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Quote:
Thank you for your quick response. I will check out the steps that you outlined and will get back to you if I am still stuck. Thanks alot! |
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May 21, 2018, 17:42 |
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#4 | |
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Thank you |
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May 22, 2018, 06:34 |
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#5 |
Senior Member
Sebastian Engel
Join Date: Jun 2011
Location: Germany
Posts: 567
Rep Power: 21 |
Hi,
i guess giving only the equation reference wasn't the best idea. Search for Theory > Numerical Flow Solution > Finite Volume Discretization > Coupled Flow Solver Then you'll get the underlying equations which you might have to integrate to get momentum on a specific entity. Best regards, Sebastian |
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May 22, 2018, 23:35 |
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#6 | |
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cfd, continuity, momentum, residuals, starccm+ |
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