Khamsin Virtual Racecar challenge 2013 (CFD model racing)

Post here information about your own engineering projects, including but not limited to building your own car or designing a virtual car through CAD.
CottrellGP
CottrellGP
4
Joined: 02 Sep 2011, 01:48

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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So making this quick and short, us designers need to try and make our car with the least amount of pressure, for example we need to try and get the front wing with the least amount of pressure (blue)? or am wrong? :lol:
Dan Cottrell

Master Of Innovation!

astracrazy
astracrazy
31
Joined: 04 Mar 2009, 16:04

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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no you need high pressure (red) over the top of wings, beam wing etc. Blue (low) under. you need some overlap to keep the airflow moving

blue around the sidepod won't be a bad thing (i'm guessing) because low pressure = high velocity - you want the air to move quickly around the sidepod, i think thats right?

wigglez28
wigglez28
0
Joined: 14 Oct 2012, 15:26

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Looks like I need a new front wing design whilst keeping the front winglets.

etsmc
etsmc
7
Joined: 04 Apr 2012, 13:20

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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astracrazy wrote:on the one i'm designing at the moment, i'm doing the underside an aero shape (curving up), seems to help
from looking at images of current F1 front wings they appear to be flat on the top of the main plane. so are you saying your going for flat across the top and curved upwards at the bottom??

astracrazy
astracrazy
31
Joined: 04 Mar 2009, 16:04

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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thats what i'm doing. If you look at this picture of mclaren, it seems they do it.
http://i1.hoopchina.com.cn/blogfile/201 ... 690128.jpg
Last edited by astracrazy on 29 Nov 2012, 13:44, edited 1 time in total.

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RicME85
52
Joined: 09 Feb 2012, 13:11
Location: Derby

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Ive got Khamsin and all the other bits installed, Ive tried to follow the pdf on the Hibou website but its mush to me. Is there a simple way of getting it set up so I can run my own sim's on components?

Aussie
Aussie
0
Joined: 18 Nov 2011, 04:11

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Can I just quietly say how much better this is already compared to FSketch =D> to the guys who got this going

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N12ck
11
Joined: 19 Dec 2010, 19:10

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Thankyou for the comments, I am sorry about being slow with the emails, I am just checking over a few things before sending them out, I have been extremely busy with CFD for another thing I am doing at the moment, so bare with us, also I travel on weekends for different events so I am slotting this around University work and around CFD work,

I intend on making a numbers page, on what they mean for each car etc, all part of the learning process for those who don't know how to interpret this data, I will forward the VTK links on to you within the PDF's,

Thanks for your understanding
Nick
Budding F1 Engineer

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N12ck
11
Joined: 19 Dec 2010, 19:10

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Images added to website,
PDF's sent

Please see "Monaco GP in numbers" page very interesting information:
http://www.khamsinvirtualracecarchallen ... /test-race
Budding F1 Engineer

astracrazy
astracrazy
31
Joined: 04 Mar 2009, 16:04

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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its interesting the 3 legal cars were the 3 fastest

whats that best split between front and rear downforce?

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RicME85
52
Joined: 09 Feb 2012, 13:11
Location: Derby

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Could of sworn my tub was legal when I started work on the car.
Nevermind.

stez90
stez90
8
Joined: 10 Jul 2012, 23:31

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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N12ck the tub of my submission (STZ racing) was a custom made one. :wink:

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N12ck
11
Joined: 19 Dec 2010, 19:10

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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Apologies, will correct this,

Any requests of graphs or anything for the page? Would you like to see a bar chart comparing the magnitudes between drag and downforce of all the teams?
Budding F1 Engineer

astracrazy
astracrazy
31
Joined: 04 Mar 2009, 16:04

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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i don't think graphs etc are needed?

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RicME85
52
Joined: 09 Feb 2012, 13:11
Location: Derby

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

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yeah make some pretty charts for us simpletons :)