[melci]

Hello everyone,

I am using reef 3D in a project and I am trying to insert a solid in the model,

I used the Control "S 1 1" on the control file and named the solid "solid.stl" being in ascii format.
in the terminal said that the solid is printed but I can't see any difference in the mesh.
when I run the simulation the flow presents no interaction with the solid, even when I import it.
If I use the command S 10 and create a rectangular object with similar characteristics I can see the impacts on the flow and mesh.






I don't know why can you help me figure it out?


Control.txt
C 11 1
C 12 3
C 13 3
C 14 2
C 15 21
C 16 3


B 1 0.025

B 10 -1.0 2.0 -0.6 0.6 0.0 0.8
S 1 1


M 10 4

M 20 2


ctrl.txt

B 10 1
B 11 1
B 50 0.0001
B 60 1

D 10 4
D 30 1
F 30 3
F 40 3
F 50 3
F 60 0.5
I 10 1
I 20 1500

N 10 14
N 11 11
N 40 6
N 45 100000
N 47 0.3
S 10 2
M 10 4
P 10 1
P 20 100
T 10 2
W 10 0.1
W 22 -9.81



The solid size is 20cmX20cmX20cm but it has some holes.

thank you for your help and I look forward to your suggestions

[Felix_Sp]

Hey,


I think it would help, if you would also show/post your .stl file/ its dimensioning. Maybe it is just at the wrong position in x y z.

[kamath]

Hi Mel,

S 1 1 activates the reader for the stl input and then follows a default path to include the stl object into your domain.

It is completely fine have only S 1 1, but that will assume that everything else is as it should be for its position in the domain.

This is rarely the case.

You might need to use:
S 4 to make sure it is in the right scale (depends on what scale the original stl was plotted on)

S 7 to move it to the correct position (the origin of the original is arbitrary, and you need to ensure that is fixed to enter the domain you have defined)


I would say the first step is to:
Open the stl file in Paraview, without any other files.
Activate the "axes grid" (in new versions, I think this is active by default)
Then you get to see the minimum and maximum coordinates of the stl structure in different directions, etc. to make the suitable input choice for your simulation.

Hope that helps!

[melci]

hello,
but if you would like to check I send here the solid

I've tried S7 and it didn't work as well,
I also checked the coordinates and they are (0,0,0) in one of the corners of my solid

also, the size is alright.

I made the solid on rhino



Thank you here I send the solid

[melci]

well I can't upload the solid into the chat... maybe the size I don't know

can you check if there is anything that I can do, please?
thank you
could the problem be the mesh size?

[kamath]

Can't be sure about the diagnosis at this stage.
Are you also trying to include a porous sediment bed in the simulation?

[melci]

I got it, thank you.