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> Cool 914 Flow Simulation, What's the air look like around a 914 at 100mph?
Joemo5
post Jul 12 2019, 04:53 PM
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I snuck some time in after work today to toss in a 3D model of a 914 into Solidworks flow simulation. Shhh... don't tell the boss!

I found the model on Grabcad from Eric O. If he's here.. Thanks! I figured you guys would love to see this so here's a plot of the velocity streamlines. The lines show the flow path, and the color shows how fast the air is going.

Attached Image

Better yet, here's an video showing the flow in 3D. If you've got the band width, watch in HD 1080p

URL Link: https://youtu.be/-1dZOuYtUiU


https://www.youtube.com/watch?v=-1dZOuYtUiU


In order to finish the simulation without running overnight, I had to limit how fine the mesh was which means that the simulation is not 100% accurate. The model is pretty basic too and not completely accurate. If by chance anyone has a more accurate model, I'd love to rerun the simulation with a finer mesh and better model. (IMG:style_emoticons/default/idea.gif)
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Joemo5
post Jul 12 2019, 07:19 PM
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@JeffBowlsby Sweet documents. Thanks!

@IronHillRestorations Sure. If I get some more free time I'll add them in. I don't know what they look like though. My car came partially disassembled. Got any pics?
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jd74914
post Jul 13 2019, 09:58 AM
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QUOTE(Joemo5 @ Jul 12 2019, 08:19 PM) *

@IronHillRestorations Sure. If I get some more free time I'll add them in. I don't know what they look like though. My car came partially disassembled. Got any pics?

More important than flaps are likely spinning wheels to be honest. Lots change when wheels move and the ground moves in my experience. (IMG:style_emoticons/default/smile.gif)

SW started using a version of Mentor FloEFD-does it let you set turbulence models and all of that fun stuff? It used to be limited to a heavily damped k-e model to solve fast.

Neat stuff!
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Joemo5
post Jul 13 2019, 05:19 PM
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QUOTE(jd74914 @ Jul 13 2019, 11:58 AM) *

QUOTE(Joemo5 @ Jul 12 2019, 08:19 PM) *

@IronHillRestorations Sure. If I get some more free time I'll add them in. I don't know what they look like though. My car came partially disassembled. Got any pics?

More important than flaps are likely spinning wheels to be honest. Lots change when wheels move and the ground moves in my experience. (IMG:style_emoticons/default/smile.gif)

SW started using a version of Mentor FloEFD-does it let you set turbulence models and all of that fun stuff? It used to be limited to a heavily damped k-e model to solve fast.

Neat stuff!


Those are good suggestions. I'm still in my infancy when it comes to CFD analysis. Figuring out how to make the wheels spin sounds involved.

I dont know what turbulence models Solidworks used but I didnt dive in too deep when setting up the analysis. I used the wizard and let it choose based on my inputs. However, it was able to solve 108,000 cells in 20 mins using 8 cores, which is very fast compared to the Star CCM software I've used.
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Posts in this topic
Joemo5   Cool 914 Flow Simulation   Jul 12 2019, 04:53 PM
mepstein   That’s really cool. Thanks for sharing. :beer2:   Jul 12 2019, 05:05 PM
wes   Excellent :beer2: thanks!   Jul 12 2019, 05:17 PM
BPic   Very cool. Thank you for sharing this. :beer2:   Jul 12 2019, 05:21 PM
sb914   Post of the month! :Qarl:edit : of the year ...   Jul 12 2019, 05:25 PM
IronHillRestorations   I remember reading in an old Panorama that said th...   Jul 12 2019, 05:34 PM
Joemo5   Thanks guys. I looked up the Cd value once and rem...   Jul 12 2019, 05:58 PM
IronHillRestorations   Can you add the flaps at the bottom of the firewal...   Jul 12 2019, 06:01 PM
Mikey914   Can you add the flaps at the bottom of the firewa...   Jul 13 2019, 12:55 AM
Joemo5   Can you add the flaps at the bottom of the firew...   Jul 13 2019, 03:18 PM
JeffBowlsby   Mo Aero stuff:   Jul 12 2019, 06:30 PM
Joemo5   @JeffBowlsby Sweet documents. Thanks! [b]@...   Jul 12 2019, 07:19 PM
jd74914   [b]@[url=http://www.914world.com/bbs2/index.php?...   Jul 13 2019, 09:58 AM
Joemo5   [b]@[url=http://www.914world.com/bbs2/index.php...   Jul 13 2019, 05:19 PM
wndsrfr   Any way to add a front spoiler and rear spoiler to...   Jul 12 2019, 07:34 PM
Andyrew   Thanks for sharing!!   Jul 12 2019, 08:13 PM
Andyrew   Can you show it at 180mph? Curious to what happens...   Jul 12 2019, 08:14 PM
76-914   Can you show it at 180mph? Curious to what happen...   Jul 13 2019, 08:03 AM
914-300Hemi   Thanks for sharing. Great video. Would interesting...   Jul 12 2019, 11:00 PM
Tdskip   Thanks for posting this-super cool   Jul 13 2019, 08:28 AM
johnhora   Thanks for taking the time to run this...very cool...   Jul 13 2019, 09:26 AM
Superhawk996   Nice job with the CFD work. :beer2: Looks like...   Jul 13 2019, 12:22 PM
Bleyseng   Looks like a Ducktail would help breakup that low ...   Jul 13 2019, 02:17 PM
Chris914n6   I have Solidworks at home on a decent comp. Wasn...   Jul 13 2019, 03:56 PM


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