RicME85 wrote: ↑
Mon Jul 16, 2018 7:26 pm
Have you tried having the folder with your car stl files elsewhere? IIRC I have had issues with simulations not working when the geometry is in places like 'My Documents'. To combat this I install BlueCFD in its default directory then on C:\ I have a folder called CFD. Within this I have the various folders for my geometry eg 'Race_1_Spec_1' 'Race_1_Spec_2' etc. I usually just create an MVRC folder on the desktop and extract MantiumFlow into that and everything works fine.
Some of the problems with running simulations come from admin rights, even if you have admin rights or are using the admin account (I have tried a number of things on different PCs and found the above setup to work best).
This issue has been fixed a while ago. I remember it so clearly because I was so surprised that in Windows a simple 'cd E:' does not work. You can install MantiumFlow where you want and can have your CFD folder on a different drive if you like. You should check the Change.log when new versions get released, that helps for you to find such new features.
A15013950 wrote: ↑
Wed Jul 18, 2018 12:39 am
Is intersecting CAD geometry allowed?
Yes, I recommend working like that as it makes designing the car much easier.
Yesterday Matteo pointed out some issues with the software to me. One is a bit bad. It is related to the new Windows version of OpenFOAM. In the simulations we have an automatic switch to start the run with first order accurate numerical schemes which then get switched to second order. This switch to second order currently does not work under Windows, which means that your end results are not what they should be. You can find the bug report here:
As I do not work on this, I cannot help with the bug fix and we can only wait. BlueCFD has however recommended a good work around which I will try to implement today. Depending on how things go, I might have to delay the first race.
I have also simulated the new Intro class car. It seems that the heat exchangers do not see enough cooling flow and the car needs some more rear downforce. I could work on that part. However why is the car complete? Shouldn't the guys get a car without front and rear wind and also without the diffuser?