Hi Prof. Sherwin, I found related code in the branch feature/IncNS-FSI and library/SolverUtils/Filters/FilterAeroForces.cpp. Thanks again for your guidance and great work on Nektar++. Sincerely, Yong Wang On Thu, Jul 9, 2020 at 1:33 PM Sherwin, Spencer J <s.sherwin@imperial.ac.uk> wrote:

HI Yong,

I think there is already a moment forces evaluation in one of the branches related to moving body.

@Robin: Can you point Yong to the place where some code already exists?

Cheers, Spencer.

Spencer Sherwin FREng, FRAeS Head of Aerodynamics Section, Director of Research Computing Service, Professor of Computational Fluid Mechanics, Department of Aeronautics, s.sherwin@imperial.ac.uk South Kensington Campus, Phone: +44 (0)20 7594 5052 Imperial College London, Fax: +44 (0)20 7594 1974 London, SW7 2AZ, UK http://www.imperial.ac.uk/people/s.sherwin/

On 9 Jul 2020, at 18:33, Yong Wang <yongwang.ttu@gmail.com> wrote:

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Hello,

I am new to Nektar++ and now working on vortex-induced vibration. The filter MovingBody can output the drag and lift forces acting on the body, however, I also require the moment data. I am modifying the MovingBody filter and now struck in the extraction of boundary points (used to calculate the moment). I wonder if there exists a method to extract edge points similar to GetEdgeNormal for extraction of edge normals. It will be greatly appreciated if you could give me some suggestions about this issue.

Thanks a lot. Y. Wang _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users