Simulating a breakwater with porous and solid objects

Mar_Vayreda · November 24, 2022, 05:45

Hi everyone,

I am trying to run a case with a breakwater, with some porous layers and a solid crown above. I have first started running the case without the breakwater and my domain and it works well (control_without.txt and ctrl_without.txt attached).
I found in this forum a way to add porous elements but even though the porous object is created when I start the simulation, it does not continue running and don't create vtu files. I can see that the porous object is well created with paraview (attached images). For the crown, I have added a solid object on the control.txt file (also attached control_breakwater.txt and ctrl_breakwater.txt). It would be of great help if someone knows where the mistake is.

Thank you!

control_without.txt

ctrl_without.txt

ctrl_breakwater.txt

control_breakwater.txt

ee.jpg

kamath · November 28, 2022, 10:31

Hi Mar,

In your input files with the breakwater, you have defined the grid size B 1 as 0.2 m. Whereas the extent of the domain in the y-direction in B 10 is just 0.1 m.

This means no cells are produced in the y-direction and the domain is not set up.

You do commit this error only in the files with the breakwater, the files without have 0.1 for both B1 and B 10.

Change B 1 to 0.1 OR B 10 y max to 0.2, your problem is solved

Mar_Vayreda · November 29, 2022, 04:55

Ohh I see, thank you so much!! I did not realize

November 24, 2022, 05:45	Simulating a breakwater with porous and solid objects	#1
Mar_Vayreda New Member Mar Join Date: Nov 2022 Posts: 5 Rep Power: 4	Hi everyone, I am trying to run a case with a breakwater, with some porous layers and a solid crown above. I have first started running the case without the breakwater and my domain and it works well (control_without.txt and ctrl_without.txt attached). I found in this forum a way to add porous elements but even though the porous object is created when I start the simulation, it does not continue running and don't create vtu files. I can see that the porous object is well created with paraview (attached images). For the crown, I have added a solid object on the control.txt file (also attached control_breakwater.txt and ctrl_breakwater.txt). It would be of great help if someone knows where the mistake is. Thank you! control_without.txt ctrl_without.txt ctrl_breakwater.txt control_breakwater.txt ee.jpg

November 28, 2022, 10:31		#2
kamath Senior Member Arun Kamath Join Date: Nov 2014 Location: Trondheim, Norway Posts: 265 Rep Power: 14	Hi Mar, In your input files with the breakwater, you have defined the grid size B 1 as 0.2 m. Whereas the extent of the domain in the y-direction in B 10 is just 0.1 m. This means no cells are produced in the y-direction and the domain is not set up. You do commit this error only in the files with the breakwater, the files without have 0.1 for both B1 and B 10. Change B 1 to 0.1 OR B 10 y max to 0.2, your problem is solved __________________ Arun X years with REEF3D

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November 29, 2022, 04:55		#3
Mar_Vayreda New Member Mar Join Date: Nov 2022 Posts: 5 Rep Power: 4	Ohh I see, thank you so much!! I did not realize