[MVRC] Mantium Virtual Racecar Challenge 2017

[LVDH]

While working on Matteo's case, I noticed that the force per part does not work when the sim ran on WIndows. Did nobody else notice this?

[rjsa]

I could see on the logs, no plots - there was an error mesage.

I got the exact same output as Matteo's screen grab.

[Alonso Fan]

After sepang I made some changes but did something awful to my car. Not sure what happened.

I probably won't have enough time to make changes to my car for the next race. So I'd like my last submission from sepang to be used.

[LVDH]

So after looking at Matteo's problem and realizing that rsja probably suffers from the same issue, I have made minor adjustments to the post-processing tool to deal more gracefully with the situation. The issue itself is OF related and not easy to fix. I will try to work on a solution but that one will not be available until the final race of the season as the next one is coming up this weekend. You can download the new version from the page (it is still called 2017.10).

[AratzH]

I run a simulation yesterday with the version available at 15:30 East Coast time and I have an issue where after PP I get all the pictures for Ptot = 0, the general views and also the stream lines (but some of them are empty, just geometry) and not the sections.
The per - part results seem reasonable and final results are within what's expected. Also tilted HX work great (+50% flow ).
Unfortunately I am too far from Mateo...

[CAEdevice]

Don't worry, I will run with the same car as the previous race, I have no time to develop a version with rotated hx (btw: would it be possible to rotate them alternatively in the other direction?).

The changes will be small details to correct a minor legality issue and new diffuser strakes.

More interesting things will be tested for LeMans (it is a prestigious race itself: last year I won the challenge at LeMans but I did my worse race).

[LVDH]

I run a simulation yesterday with the version available at 15:30 East Coast time and I have an issue where after PP I get all the pictures for Ptot = 0, the general views and also the stream lines (but some of them are empty, just geometry) and not the sections.

Oh god, what happened? This is horrible, I have no idea from where this is coming, I changed nothing that should cause this.

[rjsa]

I offered it more than once and never understood why you did not answer, but fine now we are getting somewhere.
First just send me an email explaining how you use AWS and how the environment is setup (how is OF installed and so on). Then let me know what you would expect the AWS button, which we will create for the HPC tab, should do for you.

Hi LVDH.

I don't have anything fancy going on. I pack a bunch RAR files, one per job. Upload them via SAMBA. Then a script will unpack, process and compress back each one, then shut the machine down to stop the $$$ meter.

How does it work with HPC?

[rjsa]

Does asn=anyone knows if this:

foamMonitor -l postProcessing/residuals/0/residuals.dat

Would work with BlueCFD if I bother to instal an X server?

[CAEdevice]

I finally went back to WFlow.9: I will not use rotated hx so there is no reason to struggle with the new version.

I was wondering if the rotation around z will available for the next race as an alternative to y rotation.

[variante]

Same problem here. So far 1 out of 3 simulations failed to produce most of the post processing (using version 10).

BTW this is my car for Sao Paulo. It features some slight improvements here and there, but unfortunately nothing critically good came out during these weeks... I'll be lucky to reach the podium...

I suspect this race is going to be even tighter than the last one.

[rjsa]

I'm stuck too. Repeated the last car, whatever gain I found wasn't worth the risk of losing points in scrutiny.

[LVDH]

Hi guys,
I am checking the cars. Some are missing. I hope this is not because my last software version had issues, but for some other reasons. So far I have to say I like Variante's and Pure Power Racing's cars the most. Variante seems to be using a new CAD tool or has mastered creating stl files. The tessellation is really nice. I bit more resolution around the front fenders would have been nice for the optics. For the renders I will fix it.

[rjsa]

Not software related for me.

I ran 50 variations before the new release, gained nothing. When you released 10 I was midway some big changes, as I still am, but no improvement so far.

Let's hope I gain a bit for LM.

Oh, abd the baby sleeping habits get a lot in the way

[variante]

Variante seems to be using a new CAD tool or has mastered creating stl files.

Hahah nono, I just mastered Sketchup (the best CAD program ever ).
But I confess I had to use SolidWorks for the rear wheels covers...

I ran 50 variations before the new release

Wow! Not bad!
I know it's frustrating not to gain much after so many simulations, but -at least from my experience- it is still possible to learn a lot from mistakes (even more than during those times when everything goes right).