Jump to content
SAU Community

Recommended Posts

Hey,

Ive just started doing 3d cad work and basic CFD. I have the software etc to do more complex CFD but I have just been modelling air flow through cooler piping n such. Want to eventually model plenums and exhaust manifolds. Im not interested in this as a profession or anything, Just a bit of a way to put off uni work.

You will find that you cant do CFD modelling without a thorough understanding of fluid mechanics. In making the model you have to have more then a basic understanding of what is going on if you are hoping to get accurate CFD results. The old story of shit in shit out...the packages are not smart enough to allow non scientists/engineers really exploit hwat can be done.

I did CFD at Uni in my final year of study, and hated it, because whilst i love the modelling i hate fluid mechanics :cool:

I found FEA is a little easier to use, partly because my mechanics is better then my fluids but also the software packages are a little smarter as stresses are far simpler then the head fark that is fluids >_<

If your studies are related to CFD then you should consider doing it professionally, especially if you enjoy it. Its quite a specialty skill that woudl be great to cruise the market place with

You will find that you cant do CFD modelling without a thorough understanding of fluid mechanics. In making the model you have to have more then a basic understanding of what is going on if you are hoping to get accurate CFD results. The old story of shit in shit out...the packages are not smart enough to allow non scientists/engineers really exploit hwat can be done.

I did CFD at Uni in my final year of study, and hated it, because whilst i love the modelling i hate fluid mechanics :(

I found FEA is a little easier to use, partly because my mechanics is better then my fluids but also the software packages are a little smarter as stresses are far simpler then the head fark that is fluids :bunny:

If your studies are related to CFD then you should consider doing it professionally, especially if you enjoy it. Its quite a specialty skill that woudl be great to cruise the market place with

Yeh I didn't mind the fluid mechanics I did. Was a slight pain in the ass but it wasnt too complex. You are 100% right about needing to know more about fluids then just chucking in some air in and pushing run. What exactly did you study?

I dont think we have a CFD option in my degree at all, hence why I am just tinkering on the side. I deal a ridiculous amount with fluids in chemical engineering with liquid vapour equilibrium, polarity, viscosity, specific volumes and how pressure, temperature, volume, work, and heat transfer affect a system dynamically. But we havent gone too in depth into the fluid mechanics though sadly, that is more of the mechanical engineering side of things.

As for a specialty skill that does sound like a good idea, although I am not 100% sure how much that would be used around here in the mining industry. If I managed to get work with a petrochemical company then Im sure they would love me for it. I guess CFD would definitely be a little notch on my resume. :)

Edited by Lukas 33
  • 9 months later...

I just finished downloading solidworks and dam that thing is....ummm detailed!!!!! I'm with STR8E....tafe course sounds like a good thing

There are tutorials included. TAFE is overkill unless you are going to be using it professionally and need to know different standards. Do the tutorials and just mess around drawing random things and you'll learn enough to make up some fairly detailed parts.

I have been using it as a digital and versitale drawing cabinet lol.

post-41232-0-91065100-1296903156_thumb.jpg

Hicas eliminator (r33,r34,s15 etc) allows normal rear toe arms to be installed and acts as a brace too.

post-41232-0-90655900-1296903175_thumb.jpg

rb25gbox in to silvia...

post-41232-0-36171300-1296903213_thumb.jpg

very handy indeed saves allot of time in the design process allows everything to be stress tested pre fabrication.

to the OP

find download the game STREET LEGAL (the first one) then download all the patches n mods n what not..

then import all your creations for teh awesomeness

its pretty much a game that you can get in to and change shit, you can import things created in cad and what not. im talking everything, wheels, exhausts,engine bits! its epic

  • 1 year later...

just to give this thread a bit of a move on....here is of my first ones.

RB26 exhaust manifold flange with loft from port outline to ID of steam pipe to save a massive amout of die grinding and assist with port alignment and without lofting to keep costs down on cutting, 2axis vs 5 axid for lofted version

post-16214-0-77678800-1356784466_thumb.png

post-16214-0-25900900-1356784468_thumb.png

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • Hi all,   long time listener, first time caller   i was wondering if anyone can help me identify a transistor on the climate control unit board that decided to fry itself   I've circled it in the attached photo   any help would be appreciated
    • I mean, I got two VASS engineers to refuse to cert my own coilovers stating those very laws. Appendix B makes it pretty clear what it considers 'Variable Suspension' to be. In my lived experience they can't certify something that isn't actually in the list as something that requires certification. In the VASS engineering checklist they have to complete (LS3/NCOP11) and sign on there is nothing there. All the references inside NCOP11 state that if it's variable by the driver that height needs to maintain 100mm while the car is in motion. It states the car is lowered lowering blocks and other types of things are acceptable. Dialling out a shock is about as 'user adjustable' as changing any other suspension component lol. I wanted to have it signed off to dissuade HWP and RWC testers to state the suspension is legal to avoid having this discussion with them. The real problem is that Police and RWC/Pink/Blue slip people will say it needs engineering, and the engineers will state it doesn't need engineering. It is hugely irritating when aforementioned people get all "i know the rules mate feck off" when they don't, and the actual engineers are pleasant as all hell and do know the rules. Cars failing RWC for things that aren't listed in the RWC requirements is another thing here entirely!
    • I don't. I mean, mine's not a GTR, but it is a 32 with a lot of GTR stuff on it. But regardless, I typically buy from local suppliers. Getting stuff from Japan is seldom worth the pain. Buying from RHDJapan usually ends up in the final total of your basket being about double what you thought it would be, after all the bullshit fees and such are added on.
    • The hydrocarbon component of E10 can be shittier, and is in fact, shittier, than that used in normal 91RON fuel. That's because the octane boost provided by the ethanol allows them to use stuff that doesn't make the grade without the help. The 1c/L saving typically available on E10 is going to be massively overridden by the increased consumption caused by the ethanol and the crappier HC (ie the HCs will be less dense, meaning that there will definitely be less energy per unit volume than for more dense HCs). That is one of the reasons why P98 will return better fuel consumption than 91 does, even with the ignition timing completely fixed. There is more energy per unit volume because the HCs used in 98 are higher density than in the lawnmower fuel.
    • No, I'd suggest that that is the checklist for pneumatic/hydraulic adjustable systems. I would say, based on my years of reading and complying with Australian Standards and similar regulations, that the narrow interpretation of Clause 3.2 b would be the preferred/expected/intended one, by the author, and those using the standard. Wishful thinking need not apply.
×
×
  • Create New...