- **OpenFOAM Paraview & paraFoam**
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- - **Calculate mass flow **
(*http://www.cfd-online.com/Forums/openfoam-paraview/61270-calculate-mass-flow.html*)

Hello,
Has anybody calculatHello,
Has anybody calculated mass flow with Paraview ? I don't know if it's possible but if somebody has an idea :-) Thank you |

Hi Aurore,
You can calculate Hi Aurore,
You can calculate the mass flow using the filter called Surface Flow. theophane |

Hi Theophane,
Thank you forHi Theophane,
Thank you for your response. I don't want to have mass flow for each cell : how can I have mass flow through boundary patches ? Thank you |

Hi Aurore,
In order to calcHi Aurore,
In order to calculate mass flow through boundary patches you have to use "extract part" from the filter menu, then select the boundary patch you want. And then, use "Surface flow" on your extracted part. |

Hi Julien,
Thank you for yoHi Julien,
Thank you for your answer because it works very well. Aurore |

Hallo Aurore!
Based on the isHallo Aurore!
Based on the issue discussed above. I'm wondering how the mass flow is computed. Since I have the equation to obtain mass flow rate: mdot = (A * pt/sqrt[Tt]) * sqrt(gam/R) * M * [1 + .5 * (gam-1) * M^2 ]^-[(gam + 1)/(gam - 1)/2] Where mdot is mass flow rate we want to achieve, Tt is the total temperature, pt is the total pressure, M is Mach number, gam is the specific heat ratio. So I guess you have to define total temp and pressure somewhere in your preprocessing, am I right? So I want to know which solver did you use in FoamX? And how you defined pt, Tt boundary conditions? Thanks by the way! |

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