Sediment Transport Not Occurring in REEF3D Simulation – Need Help!

Abhiram999 · February 17, 2025, 12:14

I am running a sediment transport simulation in REEF3D within a wave tank (20m x 5m x 1m), but I am not observing any sediment transport in the results. Despite setting up the sediment-related parameters, the sediment bed appears to remain unchanged throughout the simulation, Below are control.txt and ctrl.txt files , please check and help me , i am ready to make whatever changes are needed , i am trying it from almost 1 month , please help

Abhiram999 · February 18, 2025, 09:24

Team REEF3D please respond!!!

harenaobsidet · February 18, 2025, 09:41

Hello. It seems like you are missing the erodible surface. Such an erodible surface can be defined using either a T option in DIVEMesh or the S57 option in REEF3D. Once you configure that, a surface should appear when you create a contour at 0 for the scalar topo in ParaView.
Also S71 + S72 should do the same as S77, so you only need one.

Abhiram999 · February 18, 2025, 12:12

Thank you for your response! I'll reach out if I need any further suggestions.

Abhiram999 · February 19, 2025, 10:49

Mr. Alexander Hanke, could you please guide me on how to calculate scour depth from the output?

harenaobsidet · February 19, 2025, 12:28

A) When you have a topo contour, you can take a contour of elevation with a number of bins. (Exclude the solid though.)
B) Use the sediment output log. (Verify that deepest point is not in the solid.)

Abhiram999 · February 20, 2025, 10:29

Thank you for your Valuable Suggestion.

Abhiram999 · February 22, 2025, 02:41

Hi Mr. Alexander Hanke,

I have implemented the changes you suggested and rerun the simulation, but I did not observe any sediment movement. Could you please help me identify where I might have gone wrong? I have attached the control.txt and ctrl.txt files below for your review.

Looking forward to your guidance.

Thanks & Regards,
Abhiram

February 18, 2025, 09:41		#3
harenaobsidet Member Alexander Hanke Join Date: Dec 2023 Location: Trondheim Posts: 55 Rep Power: 4	Hello. It seems like you are missing the erodible surface. Such an erodible surface can be defined using either a T option in DIVEMesh or the S57 option in REEF3D. Once you configure that, a surface should appear when you create a contour at 0 for the scalar topo in ParaView. Also S71 + S72 should do the same as S77, so you only need one. __________________ Alexander Hanke Team REEF3D www.reef3d.com

February 19, 2025, 10:49	Scour Depth Calculation	#5
Abhiram999 New Member Join Date: Sep 2024 Posts: 11 Rep Power: 2	Mr. Alexander Hanke, could you please guide me on how to calculate scour depth from the output?

February 19, 2025, 12:28		#6
harenaobsidet Member Alexander Hanke Join Date: Dec 2023 Location: Trondheim Posts: 55 Rep Power: 4	A) When you have a topo contour, you can take a contour of elevation with a number of bins. (Exclude the solid though.) B) Use the sediment output log. (Verify that deepest point is not in the solid.) __________________ Alexander Hanke Team REEF3D www.reef3d.com

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February 18, 2025, 09:24		#2
Abhiram999 New Member Join Date: Sep 2024 Posts: 11 Rep Power: 2	Team REEF3D please respond!!!

February 18, 2025, 12:12		#4
Abhiram999 New Member Join Date: Sep 2024 Posts: 11 Rep Power: 2	Thank you for your response! I'll reach out if I need any further suggestions.

February 20, 2025, 10:29		#7
Abhiram999 New Member Join Date: Sep 2024 Posts: 11 Rep Power: 2	Thank you for your Valuable Suggestion.