What is fluid dynamics?

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flameracing
0
Joined: Tue Oct 27, 2009 6:12 am

What is fluid dynamics?

This is a branch of aerodynamics that i bearly understand could someone help me.
Im in the f1 in schools competition. in the competition we design a car and race it, the car is propelled by a c02 cylinder there i thought fluid dynamics could help.

matt
i like salty peanuts

Jersey Tom
250
Joined: Mon May 29, 2006 7:49 pm
Location: Huntersville, NC

Re: what is fluid dynamics

Backwards. Air and water are both fluids, the study of their motion, forces, etc.. falls under fluid mechanics.

Often a 3rd year course at university, in which failing homework and exams can be typical.

Please begin by familiarizing yourself with, and memorizing the Navier-Stokes equations in spherical co-ordinates. Once you've finished up with that easy bit we can move onto the practical.

Or... you can just use common sense and build a quick 'car' without goin bananas..
Grip is a four letter word. All opinions are my own and not those of current or previous employers.

flameracing
0
Joined: Tue Oct 27, 2009 6:12 am

Re: what is fluid dynamics

damn im happy that uni is a long way away
could you by any chance dum it down
if not F@*&
i like salty peanuts

horse
13
Joined: Fri Oct 23, 2009 4:53 pm
Location: Bilbao, ES

Re: what is fluid dynamics

I think Jersey Tom might be pulling your chain a bit there. Those are, I think, just the incompressible equations too, so it can get harder.

Anyway, if you can find a solution to those equations for an arbitrary problem then you'll win a Fields Medal I should think.

If you really want to get a bit more of a grip on fluid dynamics I would start by considering the fundamental phenomena of 'Advection' and 'Diffusion'. These processes are described in the above equations, but also have some fundamental physical meaning.

Here's some quick links to have a look:

http://en.wikipedia.org/wiki/Diffusion

There's probably better out there than these, but I'm sure you're better at hyperlinking than me. The introduction to a fluid dynamics text book would inform you at lot also, and give you a peek into the weird world of turbulence.
"Words are for meaning: when you've got the meaning, you can forget the words." - Chuang Tzu

Jersey Tom
250
Joined: Mon May 29, 2006 7:49 pm
Location: Huntersville, NC

Re: what is fluid dynamics

The point being.. I think trying to get into upper division engineering theory for this project is overkill and a waste of time.

Focus on the low hanging fruit.
Grip is a four letter word. All opinions are my own and not those of current or previous employers.

mep
33
Joined: Sat Oct 11, 2003 2:48 pm
Location: Germany

Re: what is fluid dynamics

It's always good to seek for a deeper understanding of how stuff works. In this case I recommend you buying a book about fluid mechanics. It might probably not make your car instantly faster but at least you already know much of the fluid stuff when you later attempt to some university.

For this forum you have to ask a more specified kind of question. Explaining all the fluid stuff is just to much.

manchild
17
Joined: Fri Jun 03, 2005 9:54 am

Re: what is fluid dynamics

Jersey Tom wrote:...

sticky667
0
Joined: Mon Mar 09, 2009 8:33 pm

Re: what is fluid dynamics

classic piece of work there.

flameracing
0
Joined: Tue Oct 27, 2009 6:12 am

Re: what is fluid dynamics

i want the best possible burst from the co2 cylinder what could help
i like salty peanuts

fastback33
0
Joined: Wed Aug 29, 2007 7:45 am

Re: what is fluid dynamics

Just to piggyback a little bit. Does anyone have a good recommendation for a Fluid mechanics book?

xpensive
378
Joined: Sat Nov 22, 2008 5:06 pm
Location: Somewhere in Scandinavia

Re: what is fluid dynamics

My humble xperience, if you can believe that concept now, is that many engineers never really grasp the concept of static and dynamic pressure as a constant-sum game. But it's a very good beginning of understanding fluid dynamics.
"I spent most of my money on wine and women...I wasted the rest"

twoshots
5
Joined: Tue Jul 01, 2008 11:37 am

Re: what is fluid dynamics

Have you looked it up on wikipedia?

http://en.wikipedia.org/wiki/Fluid_dynamics

noname
6
Joined: Fri Feb 13, 2009 10:55 am
Location: EU

Re: what is fluid dynamics

flameracing wrote:This is a branch of aerodynamics
it's opposite. fluid dynamics is more general and so aerodynamics is rather a branch of the fluid dynamics.

flameracing
0
Joined: Tue Oct 27, 2009 6:12 am

Re: what is fluid dynamics

and thanks for that info on the branches and stuff
i like salty peanuts

ashf1mclaren
0
Joined: Wed Dec 16, 2009 10:31 pm
Location: United Kingdom

Re: what is fluid dynamics

hey guys is it possible in some cfd programs to simulate co2 being released from the canister and also is it possible to rotate wheels to a speed,what programs are able to do this a how much are they
thanks
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