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[Othman Sh <question691748@xxxxxxxxxxxxxxxxxxxxx>]

New question #691748 on Yade:
https://answers.launchpad.net/yade/+question/691748

Hello,

I have a general question about the flow engine in Yade. I would like to know how the fluid velocity (for example: averageVelocity() function) is calculated? I have read the model documentation in [1] and [2] and similar papers but I couldn't understand how the fluid velocity is obtained numerically. 

Also, is the average velocity reported from using averageVelocity() is the same as (u-v) in equation 19 in [2]? 


Thank you,
Othman

[1] https://link.springer.com/article/10.1007/s11242-011-9915-6
[2] https://arxiv.org/pdf/1304.4895.pdf

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