[Felix_Sp]

Hello everyone,

for the new REEF3D release (22.11) my HDC coupling seems to be broken.

The HDC printout in the CFD module prints weird time steps in the range of e-311.

I have attached the printout of DiveMESH as a file.

I have also attached a simulation that works for me for 22.04.01 (or 22.04) and does not work for 22.11. The simulation itself is of no importance.

I made sure during updating to 22.11 to make a clean installation.

Cheers
Felix

[valgrinda]

Hi Felix,

yes, you are correct, I will have a look. In the meantime, you could try P45 2. I think this is the option to move forward with anyways.

[Felix_Sp]

Hello again,

I still feel like there is something broken in the HDC module (I changed the grid size in y-Direction of my example files, such that it matches the grid size of B 1 in DM).

The printout with P45 2 works with the release_candidate branch. Using DM prints the HDC_Input just fine for the CFD simulation, but I am getting no actual waves inside the model domain.

So I tested another version of REEFD (22.03) and ran my (fixed) simulation. This version does actually work with my (fixed) input files. Having a look at the release notes makes me feel like 22.04 (maybe x fixed hydrodynamic coupling for iteration offset did introduce a bug?), actually lead to the breaking of the HDC module.

Thanks for your help and the good work in advance!

Cheers

Felix

[valgrinda]

Hi Felix,

can you try the newest release candidate for REEF3D? There was a small bug regarding the format of the bed elevation and the case should run now. One thing regarding your control.txt file for the CFD simulation: for me there was no cell in y-dir, best to use 0.0 0.01 within B 10 for the y start and end. Since both the FNPF and CFD simulations are 2D, they will be automatically aligned in y-direction.

[Felix_Sp]

Hey,

in regard to the cells in y-direction: That's what I meant with corrected simulation files.

I still feel like there is something broken in the HDC module (I changed the grid size in y-Direction of my example files, such that it matches the grid size of B 1 in DM).

The simulation is just an old one with no actual value for me, which is why I was using it. It was just to test the functionality of HDC.

Nevertheless, the simulation was not running with 22.11.

With the new (extraordinary Christmas) version of REEF3D and DM the simulation ran just fine, so I guess both the DM and the REEF3D bug got fixed! Also, P45 2 does work well. Thanks for the good work.

Cheers

Felix