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Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 15:25
by LVDH
About the podium, it looks like there are three new entries. I have seen two of them now and they look promising. But I think for anyone to get a podium the first race is at this point almost impossible. If TF is going towards L/D of 6 I would put my money on him. If JJR is playing poker with his car I guess the championship will go to Italy.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 15:52
by CAEdevice
LVDH wrote:About the podium, it looks like there are three new entries. I have seen two of them now and they look promising. But I think for anyone to get a podium the first race is at this point almost impossible. If TF is going towards L/D of 6 I would put my money on him. If JJR is playing poker with his car I guess the championship will go to Italy.
I am pessimistic, but, this is the car for Le Mans.

Image

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 16:15
by Alonso Fan
RicME85 wrote:I wont be entering again. Completely lost interest.
You mean like never?

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 17:20
by LVDH
CAEdevice wrote: I am pessimistic, but, this is the car for Le Mans.

https://dl.dropboxusercontent.com/u/522 ... ans_05.JPG
It sure looks cool.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 19:26
by CAEdevice
LVDH wrote:
CAEdevice wrote: I am pessimistic, but, this is the car for Le Mans.

https://dl.dropboxusercontent.com/u/522 ... ans_05.JPG
It sure looks cool.
Thanks. At the moment I am trying to avoid flow separation on some critical surfaces with vortex generators (some of them are visible in the image): I have time for only two runs... my workstation is burning!

Re: RE: Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 20:12
by RicME85
Alonso Fan wrote:
RicME85 wrote:I wont be entering again. Completely lost interest.
You mean like never?
Maybe

Re: RE: Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 20:26
by CAEdevice
RicME85 wrote:
Alonso Fan wrote:
RicME85 wrote:I wont be entering again. Completely lost interest.
You mean like never?
Maybe
Sorry about that. I hope you will change your mind after some weeks without thinking about the car (it happens to me sometimes).

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 09 Dec 2016, 20:28
by CAEdevice
Since it is the last race, I decided to show a picture for adults only: MP004C naked!

Image

PS: The effects of vortex generators on the flow (and on the local mesh ;) ) are positive!

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 14:27
by LVDH
Championship points before the last race:
CAEdevice 80
JJR Racing 73
TF 60

With TF being a clear candidate for victory for this race I think there is even a slim chance of him taking away the grand prize.
I am looking forward to tomorrow morning when I see all of your cars.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 19:00
by Ft5fTL
Here is a screenshots from the last version of my car.

Image

Unfortunately i lost some aero efficiency for cooling.

I posted some indepth images on my blog about my car for this race if anyone interested about it.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 19:16
by CAEdevice
Ft5fTL wrote:Here is a screenshots from the last version of my car.

https://purepowerracing.files.wordpress ... leman1.jpg

Unfortunately i lost some aero efficiency for cooling.

I posted some indepth images on my blog about my car for this race if anyone interested about it.
Thanks for posting the pictures in your blog, I admit I studied them accurately.

My "mental" CFD says DF/DR ratio above 4.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 20:33
by AratzH
Always interesting to check your pictures Ft5fTL. I really like the cooling/front diff set up. I tried it myself some time ago with no luck. BTW I can see my Sepang's rear wing is spreading to other teams ;).

Regarding my entry I uploaded a minor revision of Sepang's car with slightly better L/D ~5.5. I might upload a newer one if my last simulation improves some and I can make it on time. Pictures coming soon...

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 20:46
by CAEdevice
My car is much less efficient, but I should not have any convergence issue this time. It has been developed for 1500 iterations, but it will behave the same (or slightly better) with 2000 iterations. Let's wait for the results... I am an interested spectator of the podium battle :)

Despite the not exciting results for my car in the efficiency races, I can't wait to start the development of the car for the next season or, at least, the discussion about new proposals. We really need a finer mesh and 2nd order equations.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 22:43
by LVDH
CAEdevice wrote: Despite the not exciting results for my car in the efficiency races, I can't wait to start the development of the car for the next season or, at least, the discussion about new proposals. We really need a finer mesh and 2nd order equations.
Sure, you do not know what headache starts then for you.
At least from the submissions so far I am happy to see how CAD quality has improved once more. Last race was the worst and now it is back on track.

Just everyone remember to submit today and not as usual on Sunday.

Re: [MVRC] Mantium Virtual Racecar Challenge 2016

Posted: 10 Dec 2016, 23:06
by CAEdevice
LVDH wrote: Sure, you do not know what headache starts then for you.
What kind of headache exactly? Are you talking about flow separation and design issues or about numerical issues?

I could provide a much better geometry if heavier STL would be allowed.