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Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 28 Nov 2012, 17:50
by CottrellGP
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:

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 28 Nov 2012, 19:04
by astracrazy
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?

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 28 Nov 2012, 19:43
by wigglez28
Looks like I need a new front wing design whilst keeping the front winglets.

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 29 Nov 2012, 06:24
by etsmc
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??

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 29 Nov 2012, 10:10
by astracrazy
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

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 29 Nov 2012, 13:37
by RicME85
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?

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 29 Nov 2012, 15:51
by Aussie
Can I just quietly say how much better this is already compared to FSketch =D> to the guys who got this going

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 29 Nov 2012, 20:00
by N12ck
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

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 03:04
by N12ck
Images added to website,
PDF's sent

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

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 10:29
by astracrazy
its interesting the 3 legal cars were the 3 fastest

whats that best split between front and rear downforce?

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 11:32
by RicME85
Could of sworn my tub was legal when I started work on the car.
Nevermind.

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 12:15
by stez90
N12ck the tub of my submission (STZ racing) was a custom made one. :wink:

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 12:23
by N12ck
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?

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 14:47
by astracrazy
i don't think graphs etc are needed?

Re: F1 model CFD Challenge (Khamsin Virtual Racecar challeng

Posted: 30 Nov 2012, 14:58
by RicME85
yeah make some pretty charts for us simpletons :)