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October 29, 2021, 04:45 |
Modelling of sloping sand berm in Reef3d
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#1 |
New Member
Daineymol Thomas
Join Date: Sep 2021
Posts: 10
Rep Power: 5 |
Dear all,
I have been trying to replicate the 'Numerical modelling of breaking wave induced seawall scour' performed by Ahmad et al. https://www.sciencedirect.com/scienc...7838391830468X But I couldn't model the sloping sand berm and false bottom in the numerical setup. It would be great if someone could help. Thanks Dainey |
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November 2, 2021, 06:53 |
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#2 |
Senior Member
Arun Kamath
Join Date: Nov 2014
Location: Trondheim, Norway
Posts: 265
Rep Power: 13 |
Could you describe your problem in more detail and share the input files you use?
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Arun X years with REEF3D |
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November 3, 2021, 07:01 |
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#3 |
New Member
Daineymol Thomas
Join Date: Sep 2021
Posts: 10
Rep Power: 5 |
Dear Dr Arun
Thank you for your response. I have been trying to replicate the breaking wave induced scouring as in the paper mentioned above. But I couldn't model the sloping sand berm. A sediment transport code was made after referring some tutorials posted online. Control file and sediment transport code is posted below separately. Could you please help me in modelling the sand berm? I would be grateful if you could check the sediment transport code as well. Thank you Dainey control file C 11 6 C 12 3 C 13 3 C 14 21 // side 4 - wall C 15 21 C 16 3 B 1 0.05 B 10 0.0 40 0.0 0.05 0.0 1.0 O 61 34.96 38.71 0.0 0.05 0.0 0.7 O 10 38.71 40 0.0 0.05 0.0 0.9 M 10 8 Sediment transport code S 10 2 S 11 1 S 16 3 S 17 1 S 37 2000 S 43 500 S 57 0.7 S 77 34.96 38.71 S 80 1 S 90 1 S 91 2000 S 93 30 S 100 1 ctrl.txt B 10 1 B 50 0.0001 B 90 1 B 92 11 B 93 0.20 2.2 B 96 11.0 0 B 98 4 B 99 3 D 10 4 D 20 2 D 30 1 F 30 3 F 40 3 F 42 1.0 F 60 0.5 I 12 1 N 10 14 N 11 11 N 40 3 N 41 10.0 N 47 0.25 M 10 8 //sediment transport is posted separately //////////////// T 10 2 P 10 1 P 27 1 P 30 0.05 P 52 0.025 P 53 1 P 54 500 P 122 1 P 123 0.1 P 126 1 W 22 -9.81 Last edited by daineythomas; November 3, 2021 at 07:07. Reason: Different M10 parameter |
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November 15, 2021, 11:13 |
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#4 |
Senior Member
Arun Kamath
Join Date: Nov 2014
Location: Trondheim, Norway
Posts: 265
Rep Power: 13 |
Hi!
Firstly, I hope you are using the latest release candidate for your simulations. Several changes have been made to the sediment transport algorithm over time to increase the stability and efficiency of the simulations. Here are some tips that can be useful for you: Define structures in the NWT using the S options. O options are deprecated and not supported anymore. Use T if you want features that can erode. In ctrl.txt Remove S 17 S 37 doesn't need to be so high S 57 0.0 (You need to define the domain starting from zstart =-0.3 m) This maintains the top level of the erodible bed at z=0.0. Not essential but recommended to use a relaxation zone S 73 instead of S 77, say for eg. S 73 0.0 0.2 0.0 4.4 0.0 Hope this helps
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Arun X years with REEF3D |
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November 16, 2021, 01:18 |
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#5 |
New Member
Daineymol Thomas
Join Date: Sep 2021
Posts: 10
Rep Power: 5 |
Dear Dr Arun
Thank you so much for helping Dainey |
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