@techreport{oai:kanazawa-u.repo.nii.ac.jp:00011978,
 month = {Feb},
 note = {A simple free-surface particle detection method for two and three-dimensional SPH simulation has been implemented. The method uses sphere representation for the SPH particle. The fluid domain is covered by overlapping spheres. A sphere whose surface is not fully covered considered as boundary. To test particle’s boundary status, we used a sum of normalized relative position vectors from neighbouring particles to the test particle. By checking the existence of un-covered sphere surface by this vector sum, boundary status of the test particle can be determined. This boundary detection method can be easily embedded in the SPH solver algorithm.},
 title = {Simple free-surface detection in two and three-dimensional SPH solver},
 year = {2013}
}