07-22-2020, 02:28 AM
|
#101 (permalink)
|
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186
Thanks: 7,225
Thanked 2,217 Times in 1,708 Posts
|
Quote:
Originally Posted by Trekintosh
What do you mean by tuft test? You talking about gluing tufts to the back of the car in order to detect wind resistance?
|
Yes.
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
07-22-2020, 11:16 AM
|
#102 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,698
Thanks: 7,776
Thanked 8,585 Times in 7,069 Posts
|
Quote:
|
I was just going to 3D model the car in Fusion and run simulations on it there, way less work
|
Also less versimilitude.
Follow /forum/member-julian+edgar here, on Youtube or the old Autospeed website.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
."We're deeply sorry." -- Pfizer
|
|
|
|
|
The Following User Says Thank You to freebeard For This Useful Post:
|
|
|
07-22-2020, 01:02 PM
|
#103 (permalink)
|
|
マット
Join Date: Nov 2015
Location: Indiana
Posts: 718
Thanks: 131
Thanked 258 Times in 188 Posts
|
Quote:
Originally Posted by Trekintosh
What do you mean by tuft test? You talking about gluing tufts to the back of the car in order to detect wind resistance? I was just going to 3D model the car in Fusion and run simulations on it there, way less work  |
You must be very good in fusion. I think taping yarn to a car to be much faster and easier. What software are you going to use for simulation?
__________________
1973 Fiat 124 Special
1975 Honda Civic CVCC 4spd
1981 Kawasaki KZ750E
1981 Kawasaki KZ650 CSR
1983 Kawasaki KZ1100-A3
1986 Nissan 300zx Turbo 5 spd
1995 Chevy Astro RWD (current project)
1995 Mercury Tracer
2017 Kawasaki VersysX 300
2022 Corolla Hatchback 6MT
https://www.youtube.com/channel/UC6s...LulDUQ8HMj5VKA
|
|
|
|
|
The Following 2 Users Say Thank You to M_a_t_t For This Useful Post:
|
|
|
07-22-2020, 01:42 PM
|
#104 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,698
Thanks: 7,776
Thanked 8,585 Times in 7,069 Posts
|
We'll see what Trekintosh says, but I'm watching the OpenVDB support in Blender. A sparse shallow B-tree sitting on top of the fastest evolving [Free and Open] software in the 3D space.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
."We're deeply sorry." -- Pfizer
|
|
|
|
|
07-22-2020, 05:25 PM
|
#105 (permalink)
|
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186
Thanks: 7,225
Thanked 2,217 Times in 1,708 Posts
|
You can also just drive through dust.
We have also had members go to wind tunnels. That is some commitment! 
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
|
|
|
|
|
07-22-2020, 08:39 PM
|
#106 (permalink)
|
|
EcoModding Lurker
Join Date: Jul 2020
Location: SLO county
Posts: 48
Thanks: 10
Thanked 49 Times in 25 Posts
|
I was just gonna use the built in fluid simulation I thought Fusion had. It's not perfect but good enough for me.
|
|
|
|
|
07-22-2020, 09:28 PM
|
#107 (permalink)
|
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186
Thanks: 7,225
Thanked 2,217 Times in 1,708 Posts
|
I ran across a picture of tuft testing while tracking down a picture that California98Civic posted earlier in the same thread:
You need to buy yarn and tape! You need to cut up the yarn and tape! You need to give your car a really thin wig...
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
|
|
|
|
|
07-22-2020, 09:30 PM
|
#108 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,698
Thanks: 7,776
Thanked 8,585 Times in 7,069 Posts
|
Quote:
|
I was just gonna use the built in fluid simulation I thought Fusion had. It's not perfect but good enough for me.
|
Have you tried that yet? Have you modeled your [or any] car? CFD can be non-trivial.
Will you be rendering locally or in the cloud (Fusion 360)?
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
."We're deeply sorry." -- Pfizer
|
|
|
|
|
07-23-2020, 12:45 PM
|
#109 (permalink)
|
|
EcoModding Lurker
Join Date: Jul 2020
Location: SLO county
Posts: 48
Thanks: 10
Thanked 49 Times in 25 Posts
|
Quote:
Originally Posted by freebeard
Have you tried that yet? Have you modeled your [or any] car? CFD can be non-trivial.
Will you be rendering locally or in the cloud (Fusion 360)?
|
Yes to model a car, no to this car, no to CFD in general, probably the cloud, this is multiple years in the future and I have a Guy for Fusion if I need help. Honestly though I really don't plan on majorly reshaping the car's body. I'm not a great metalworker, this is beyond my means, at least until I get a garage with a workshop. |
|
|
|
|
The Following User Says Thank You to Trekintosh For This Useful Post:
|
|
|
07-23-2020, 01:43 PM
|
#110 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,698
Thanks: 7,776
Thanked 8,585 Times in 7,069 Posts
|
Quote:
|
Yes to model a car, no to this car...
|
Photogrammetry Software. Probably https://all3dp.com/1/best-photogramm...autodesk-recap
Quote:
|
no to CFD in general, probably the cloud...
|
Look for OpenVDB support
Quote:
|
this is multiple years in the future and I have a Guy for Fusion if I need help.
|
You could do tuft testing in an afternoon. Do 1/4 of the vehicle at a time, maybe a dozen tufts minimum. All it takes is a chase vehicle and co-conspirator with a camcorder.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
."We're deeply sorry." -- Pfizer
|
|
|
|
|
