Old video, but new to me. You wondered about what it must be like for someone really tall driving the S2000 top down highway....well you're right! My proportions are all torso, so sit very very high. I get a lot of buffeting. There is a wind blocker between the headrests, but it doesn't do much at my head level. I am tryingto experiment with aero devices to try and create a diverter I can add to the top of the windshield frame. I first tried a small spoiler. Did some before and after videos wearing a hat with yarn tufts taped on to measure turbulence. The spoiler worked quite well. Until a few days later it rained and had to put top up, and there was so much added turbulence it nearly tore the roof off! Wish I had a water tunnel to play with! Next I am going to try some vortex generators. Not those silly shark fin things mounted inline to airstream, but something at an angle that will actually generate a vortex. My hope is it will move separation back far enough to limit cabin turbulence.
Ive been waiting for this episode since your last one (Refreshing on your channel everyday!). It's because I'm about to get a BMW Z3 very soon as my next car and I wanted to have an idea on convertibles aerodynamics. Great stuff!
Love it, can't wait for the Spoon hardtop video! I had an S2000 and it was a great car. You really sit in it and not on it. Feels great. It was pretty noisy on the highway though, I think the Spoon hardtop would have helped quiet it down.
Great video and great presentation. Your speed bar indicates 700 mm/sec flow. That's only 1.56 mph (correct?). What is the "similarity" speed for a full size car? I'm guessing maybe 40 mph for your tests? Sorry if I missed it mentioned in the video....Thanks!
I know I'm late to the party on this video, however, the diverters DO make a huge difference, In my 1991 MR2 T-Top i would reach up press them down with my fingers just being silly and the change in wind noise and turbulence were very drastic. Just thought id share since i remember your AW11 from the older episodes
Great video, answered a lot of questions about my fox body mustang convertible. Any tests with roof down windows up? and reducing bouncing fabric roofs when closed? Thanks
Hey Gray, I am looking to create more downforce on my 2011 Subaru WRX GR chassis hatchback for autocross and other sporting events. Can you create a video showing the effects that a Gurney flap would have on a hatchback with an OEM rear spoiler? The design of my car features a long, flat spoiler which drops directly off of the hatch at the top. I am thinking of putting a one-inch Gurney flap at approximately 15-25 degree angle of attack.
Hi, thank you for all the great videos, really good information, I have one (two) question (s), how does a targa car body behave? would it be more like in the case of a convertible with the screen panel? Thanks!
Awesome episode, Have you considered doing the aerodynamics of a VW classic beetle? Also, what software do you use for the CFD stuff? Really liked this episode, Looking forward for the next one.
Hello! i really like and enjoy ur videos! well done explained! im studying vehicle aerodynamics and i have my exam on wednesday, its a presentation about Mercedes B Class CDI 2012 and i want to ask you if the lines on the roof are just style or they have some aerodynamic meaning! hope that you can help me because im sure my professor will ask me about them and i have no idea ! thank u and im leraning a lot of ur videos!
can you do a video on drag created from having the windows down while driving on the freeway at 100km/h and test against 60 and 80 if possible. people say you should wind up your windows.
Anything on a miata? Would love to see a vid of it with convertible top vs. hard top.
I'd also like to mention that there are many aftermarket fastback hardtops. I'd like to see those compared.
Old video, but new to me. You wondered about what it must be like for someone really tall driving the S2000 top down highway....well you're right! My proportions are all torso, so sit very very high. I get a lot of buffeting. There is a wind blocker between the headrests, but it doesn't do much at my head level.
I am tryingto experiment with aero devices to try and create a diverter I can add to the top of the windshield frame. I first tried a small spoiler. Did some before and after videos wearing a hat with yarn tufts taped on to measure turbulence. The spoiler worked quite well. Until a few days later it rained and had to put top up, and there was so much added turbulence it nearly tore the roof off!
Wish I had a water tunnel to play with!
Next I am going to try some vortex generators. Not those silly shark fin things mounted inline to airstream, but something at an angle that will actually generate a vortex.
My hope is it will move separation back far enough to limit cabin turbulence.
Ive been waiting for this episode since your last one (Refreshing on your channel everyday!). It's because I'm about to get a BMW Z3 very soon as my next car and I wanted to have an idea on convertibles aerodynamics. Great stuff!
Can you do a video about GT wings and compare them to the ducktails and small OEM wings usually featured in this channel?
We wish you still made videos.
Nice videos Gray!
Maybe you could make a video of motorcycle helmets aerodynamics...
Thanks, keep up the good work.
Love it, can't wait for the Spoon hardtop video!
I had an S2000 and it was a great car. You really sit in it and not on it. Feels great. It was pretty noisy on the highway though, I think the Spoon hardtop would have helped quiet it down.
Great video and great presentation. Your speed bar indicates 700 mm/sec flow. That's only 1.56 mph (correct?). What is the "similarity" speed for a full size car? I'm guessing maybe 40 mph for your tests? Sorry if I missed it mentioned in the video....Thanks!
I know I'm late to the party on this video, however, the diverters DO make a huge difference, In my 1991 MR2 T-Top i would reach up press them down with my fingers just being silly and the change in wind noise and turbulence were very drastic. Just thought id share since i remember your AW11 from the older episodes
Could you please do a video on the effect of rear louvres on the aerodynamics
also great video
Hey Grey lets do the next episode on under body aero devices,please!
Great video, answered a lot of questions about my fox body mustang convertible.
Any tests with roof down windows up? and reducing bouncing fabric roofs when closed?
Thanks
what is the software you use for the 2d/3d cfd?
Hey Gray, I am looking to create more downforce on my 2011 Subaru WRX GR chassis hatchback for autocross and other sporting events. Can you create a video showing the effects that a Gurney flap would have on a hatchback with an OEM rear spoiler? The design of my car features a long, flat spoiler which drops directly off of the hatch at the top. I am thinking of putting a one-inch Gurney flap at approximately 15-25 degree angle of attack.
So is a roof spoiler better than a convertible?
Hi, thank you for all the great videos, really good information, I have one (two) question (s), how does a targa car body behave? would it be more like in the case of a convertible with the screen panel? Thanks!
What would happen to a targa top or a t top car? GraysGarage
Awesome episode, Have you considered doing the aerodynamics of a VW classic beetle? Also, what software do you use for the CFD stuff?
Really liked this episode, Looking forward for the next one.
Rockmar Omega no CFD stuff, this is all experimental.
Do you use ANSYS for visualization? Pretty looks like it.
SlickRickOne everything I show is experimental, no computer simulations.
Hello! i really like and enjoy ur videos! well done explained! im studying vehicle aerodynamics and i have my exam on wednesday, its a presentation about Mercedes B Class CDI 2012 and i want to ask you if the lines on the roof are just style or they have some aerodynamic meaning! hope that you can help me because im sure my professor will ask me about them and i have no idea ! thank u and im leraning a lot of ur videos!
can you do a video on drag created from having the windows down while driving on the freeway at 100km/h and test against 60 and 80 if possible. people say you should wind up your windows.
Troy Smith Troy. Apparently having your windows down is worse than having the top down for drag. I would definitely wind them up.
how about targa tops?
Do you own an s2000 now? Because it sounds like you should 🙂
s2000? what passenger?
//on the serious note: enjoy your work a lot
I want you all aero videos the same. we don't want to see your face just do a voice over and show us the data