adjustPhi bug in 1.5-dev?
 

Under 1.5-dev, in interDyMFoam/pEqn.H, the flux is converted to relative before calling adjustPhi, but a change was made in 1.5-dev wherein phi is converted to relative (and back) within adjustPhi. Isn't this then a bug, with the mesh motion being subtracted twice?

While I was staring at this, I was wondering what the case is that has

1. incompressible fluids (constraint of interDyMFoam)
2. relative flux at the moving boundary (requiring this change to adjustPhi in 1.5-dev), and
3. no change of mass within the volume itself (such that sum flux=0 is a correct form for conservation of mass).

I guess a rigid mesh undergoing a solid body motion that included rotation would require this change. Is that the correct/only example?

Thanks,
David

My fault - apologies. I have fixed it now and checked it in. This did not get detected for sucha long time since the solver you are looking at is almost never used nowdays - there is a much better one in the naval hydro pack.

Re other questions, only one comment: Yes, there will be a problem with adjustPhi if the total volume of the domain changes during a time-step. You are fine with the rest...

Thanks for that,

Hrv

interDyMFoam, decompositionMethod and manualCoeffs
 

Hi all,
- I'm pretty new to OpenFoam and am using at the moment interDyMFoam from the 1.5-dev version, combined with GGI. I'd have liked to have some more inputs on why you say that this solver would be quite unused at present? Did i miss something about interDyMFoam or about this "naval pack" you're mentioning?

- I was running into a combined adjustPhi / decomposition problem yesterday, and would like to use a manual decomposition this time. However i found no immediate possibility to change my cellDist type file into what i want, since i cannot easily access to cells coordinates. Any hint here?

Thanks in advance!

This has been fixed now, by Henrik Rusche. It is interesting to see how long this has been in the code - presumably because we still do not do enough moving mesh :)

Naval pack is a set of codes developed by Wikki for naval hydro, currently used by people we directly collaborate with.

Hrv