[KVRC] Khamsin Virtual Racecar Challenge 2016

[etsmc]

Standard car: sorry to answer about it a bit late.
A 90% complete version of my 2015 car is available on Grabcad (keywords: kvrc, caedevice) in step and stl format.

I'm thinking about releasing a "customer" version of my 2016 car, with these differences from the official car:

- model cutted (capped) in front of the front of the front wheels and behind the rear wheels
- no rear wing
- cooling intakes a bit conservative, to make it less sensitive to front wing design
- only an update during season (probably after the summer break)

It would be great to have customer names like "x team powered by CAEdevice).

As a sponsor, I could provide also a more complete car, but only by request... I don't want to reveal too much too the best opponents (Mantium, JJR, Variante, TF, Kineuton, ... ). Niki would agree, but Toto did not

I think that (60% of the possibilities) my 2016 car will use the same 2015 layout (high nose and full open sidepods, it depends on the new rules). It would be great to have an alternative customer car with more classical lmp/c-group design.

I do like this idea of a supplied partial car. If people have time to make a partial car it opens up the chance of a suppliers series. if this were to go ahead I think the supplier should get the results from the teams that use their partial car as well for development.
the idea of capping the car ahead of the front wheel and past the rear wheels is again excellent. allowing some design freedom.
if someone is going to supply a partial car I think the partial should be submitted to KVRC and this would be what is used in the simulation so that there is no chance of alterations to the partial car by the teams using it. Updates to the partial car could be limited to 2 per season (after race 2 and 4) if there is going to be 6 races and could be left up to the teams using the partial car if they wish to use the updates partial or not.


for the marketing side, I think something needs to be done with the KVRC website. it must be just down to time but it's not always up to date and just looks a little drab. I wish I had an idea or solution to this but I'm no expert.

[CAEdevice]

Something like this (I used the "cooling ducts" test car, beacuse I have any 2016 design ready).

[julien.decharentenay]

It is down to time, money and skills of the team (or rather the lack of all these)... We won't be able to host the CAD file on KVRC directly, but will be happy to provide link to it - once I have some time to get through a website update...

[graham.reeds]

I think even less of a car. There should be 4 wheels & assemblies, the driver cockpit, the engine & transmission and the radiators with no enclosing body work.

Otherwise I fear we will get many cars that look very, very similar.

[CAEdevice]

I think even less of a car. There should be 4 wheels & assemblies, the driver cockpit, the engine & transmission and the radiators with no enclosing body work.

Otherwise I fear we will get many cars that look very, very similar.

The components you listed were already included in the 2015 template.

[RicME85]

It was supposed to be for a second tier championship, so essentially a feeder series so people can learn the ropes of CAD and CFD.

[graham.reeds]

I think even less of a car. There should be 4 wheels & assemblies, the driver cockpit, the engine & transmission and the radiators with no enclosing body work.

Otherwise I fear we will get many cars that look very, very similar.

The components you listed were already included in the 2015 template.

But they were quite nebulous.

[CAEdevice]

I think even less of a car. There should be 4 wheels & assemblies, the driver cockpit, the engine & transmission and the radiators with no enclosing body work.

Otherwise I fear we will get many cars that look very, very similar.

The components you listed were already included in the 2015 template.

But they were quite nebulous.

Maybe
This year (with the new cooling rules) it would be very important to provide a reference model including the cooling ducts (or the sidepods), even if in a "safe" (quite larger openings) version.

[WillemG]

Have you considered the use of SimScale for CFD? They offer a very generous free plan, and i'm sure they would be willing to work with us. They did do a workshop on front wings a while back.

[CAEdevice]

Have you considered the use of SimScale for CFD? They offer a very generous free plan, and i'm sure they would be willing to work with us. They did do a workshop on front wings a while back.

Good idea!

[machin]

But they were quite nebulous.

In the interests of helping the KVRC team interpret your comment so that it might be implemented in the rules can you define what you mean by "Nebulous"? To me the word means "undefined" or "lacking in clarity"...

In my opinion the internal parts were very well defined... (see image below, wheels/tyres are not shown but are included in the package)



...All except the radiators which were defined by a required cross-sectional area to keep that aspect about right whilst allowing design freedom...

Do you mean that the cockpit area (for example) should look more like a finished car?.... Or.....???

Thanks for your input.

[graham.reeds]

My flippant remark was that they were see through and more like guides where not to place items but not hard boundaries. The pack also visibility volumes.

[CAEdevice]

My flippant remark was that they were see through and more like guides where not to place items but not hard boundaries. The pack also visibility volumes.

Do you mean "template geometry" instead of "rule referred geometry"?

Last year were both released: the previous image is about the "rule referred geometry", but Chris also made available a template (with fenders and other parts). At least a team used it during the challange.

Considering the I'm going to release the 2016 car shown in my previous posts (and the complete 2015 car is available on grabcad, or by email if you don't want to register), during next KVRC edition things will be easier for new teams.

[julien.decharentenay]

Hi Gents. SimScale is a good platform - has its limitations, which I tested a lot when I applied there (but it did not get anywhere). I am trying to get in touch with the openFoam foundation directly to see if we can link with them.

In the meantime, I released OCCFD version 1.1 at http://www.khamsinvirtualracecarchallen ... edirects=0 which can be used to calculate the mean pressure at the inlet and outlet (sorry CAEdevice, the full modelling of the radiator is not ready yet). I made some progress, but have not implemented it yet.

I will go through the rule book to get it to a final draft version next week. I think I mentioned this earlier we are looking at a first race in April 2016.

[julien.decharentenay]

I forgot two items:
1) The Linux version will follow next week. It will be command line based, I just need to try to see if I can distribute an executable or ruby sources;
2) I tried upgrading my AWS image to use openFoam 3.0, to realise that I needed to upgrade the whole image. I actually will go through the rebuilding the image from scratch. So it will take a little bit of time and effort, but will be done soon.