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avaframe / AvaFrame

https://avaframe.org
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Finding Neighbours for SPH #200

Closed matthiasto closed 3 years ago

matthiasto commented 3 years ago

How do we store the information about which particle is in which cell? This is useful to compute the sph interpolation of a quantity. So far the method implemented is very close to the one used in samosAT. (SW_simution.cpp, line 2871, line 2509)

matthiasto commented 3 years ago

findNeighbours Other alternatives: https://cg.informatik.uni-freiburg.de/publications/2011_CGF_dataStructuresSPH.pdf @article{https://doi.org/10.1111/j.1467-8659.2010.01832.x, author = {Ihmsen, Markus and Akinci, Nadir and Becker, Markus and Teschner, Matthias}, title = {A Parallel SPH Implementation on Multi-Core CPUs}, journal = {Computer Graphics Forum}, volume = {30}, number = {1}, pages = {99-112}, keywords = {fluid animation, smoothed particle hydrodynamics, neighborhood search, parallel data structures, I.3.7 Computer Graphics: Three-Dimensional Graphics and Realism: Animation}, doi = {https://doi.org/10.1111/j.1467-8659.2010.01832.x}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1467-8659.2010.01832.x}, eprint = {https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1467-8659.2010.01832.x}, year = {2011} }

matthiasto commented 3 years ago

Now the SPH kernel length can be chosen independently from the DEM grid size. A SPH virtual grid based on the extend of the DEM and the SPH kernel length is build.