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-   -   Breaking Waves in REEF3D SFLOW, A 246 vs A 248 (https://www.cfd-online.com/Forums/reef3d/241731-breaking-waves-reef3d-sflow-246-vs-248-a.html)

pjoynt March 16, 2022 13:16

Breaking Waves in REEF3D SFLOW, A 246 vs A 248
 
Hi All,


Does anyone know the difference between A 246 (Breaking wave algorithm) and A 248 (Breaking wave persistence algorithm) and can point me to some literature that can describe these parameters?


Additionally, does anyone has an example where they were able to successfully able to simulate breaking waves in REEF3D SFLOW and would be willing to share or point me to a paper?


Cheers,
Patrick

Chalwwz March 21, 2022 10:28

Hi Patrick, the persistence parameter is an indicator for the duration of the breaking algorithm, or when to stop the breaking process. The details can be found in 'Wang et. al., 2020, An improved depth-averaged nonhydrostatic shallow water model with quadratic pressure approximation, https://doi.org/10.1002/fld.4807'.

Best,
Weizhi

valgrinda March 22, 2022 06:17

Hi Patrick,

the same breaking wave model is used in REEF3D::FNPF, see here for the corresponding journal paper: https://t.co/FjU5Vui3VW. In this, paper there is also validation of the breaking wave model. For both SFLOW and FNPF we have used Ting & Kirby's experiment for testing.

pjoynt March 22, 2022 06:22

Much appreciated Dr. Bihs!


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