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#1 |
New Member
maple
Join Date: Aug 2023
Posts: 2
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Hello everyone
I want to use AWA method to research wave-induced scour,it will reduce the longth of normal NWT. But when i simulate cnoidal wave,i find the trough is not correct. So i want to ask if there are some additional parameters to be set or there are some mistakes in my contral. I hopo you give me some suggestions. I have attach my control,ctrl files,simulation result. The version which i use is REEF3D-23.11 and DIVEMesh-23.11. control file C 11 6 C 12 3 C 13 3 C 14 7 C 15 21 C 16 3 B 1 0.02 B 10 0.0 4.4 0.0 0.02 0.0 0.8 M 20 2 M 10 24 ctrl file B 10 1 B 50 0.0001 B 90 1 B 92 6 B 91 0.1 8.8 B 98 4 B 99 3 D 10 4 D 20 2 D 30 1 F 30 3 F 40 3 F 42 0.8 F 60 0.40 I 12 1 N 40 3 N 41 60.0 N 47 0.20 M 10 24 W 22 -9.81 P 10 1 P 30 0.1 P 52 0.01 P 53 1 P 55 1.00 P 50 0.2 0.01 P 51 0.2 0.01 P 50 0.7 0.01 P 51 0.7 0.01 P 50 1.2 0.01 P 51 1.2 0.01 P 50 1.7 0.01 P 51 1.7 0.01 P 50 2.2 0.01 P 51 2.2 0.01 P 50 2.7 0.01 P 51 2.7 0.01 P 50 3.2 0.01 P 51 3.2 0.01 P 50 3.7 0.01 P 51 3.7 0.01 P 50 4.2 0.01 P 51 4.2 0.01 P 61 0.7 0.01 0.01 P 61 1.2 0.01 0.01 P 61 1.7 0.01 0.01 P 61 2.2 0.01 0.01 P 61 2.7 0.01 0.01 P 61 3.2 0.01 0.01 P 61 3.7 0.01 0.01 Last edited by mapleleaf; June 4, 2024 at 10:03. |
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#2 |
Member
Felix S.
Join Date: Feb 2021
Location: Germany, Braunschweig
Posts: 88
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Hey,
AWA might not always be the best option for wave absorption. The velocity profile of your Cnodial wave is inherently different from shallow water wave theory You might try B99 4 or 5, yet I think for accurate wave absorption most of the time the relaxation zones work best. So I would suggest you try B 98 4 + B 99 2 together with a relaxation zone of 8.8 m? (B 96 0.0 8.8). You might find sufficient accuracy for shorter relaxation zones, but I guess that is sth. you have to test for yourself. Maybe somebody else has a better solution. Kind regards Felix |
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#3 |
Super Moderator
Hans Bihs
Join Date: Jun 2009
Location: Trondheim, Norway
Posts: 396
Rep Power: 18 ![]() |
AWA works actually quite fine for these types of conditions (long waves in not too deep water). We have done this successfully many times (see Nadeem's paper: https://www.reef3d.com/wp-content/up...de_by_side.pdf)
I would choose another wave theory though, just go with B 92 8 (in case these are the correct conditions for cnoidal waves). |
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