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Search took 0.85 seconds. Search: Posts Made By: aerohead
Forum: Introductions Yesterday, 11:47 AM
Replies: 54
Views: 8,773
Posted By aerohead
' ride height '

I believe that lowering the ride height to the lowest allowed by the SCTA rulebook, was part of Gary Eaker's aerodynamic bag-of-tricks for the HOT ROD MAGAZINE's, Project Red Hat, Cd 0.201 Camaro,...
Forum: Aerodynamics Yesterday, 11:28 AM
Replies: 1
Views: 153
Posted By aerohead
Earth Day sees 'Four-Bolt Chariots', Southbound on I-35

I exhibited Spirit of EcoModder.com outside of the Gainesville High School cafeteria, and exhibited the ITworks' scale-wind tunnel, inside the cafeteria, for the 2024 Earth Day celebration...
Forum: Aerodynamics 04-22-2024, 10:42 AM
Replies: 14
Views: 369
Posted By aerohead
' upside down...'

1) 3-D underwater tow tests are performed with the model attached to an overhead 'sting', supported from an overhead gantry-crane, which travels the length of the tank, wheels of the model 'rolling'...
Forum: Aerodynamics 04-20-2024, 01:05 PM
Replies: 14
Views: 369
Posted By aerohead
' greater or less '

1) It all come down to Reynolds number, which must always be 'supercritical.' ( one-million or above ).
2) 'Kinematic viscosity' is part of the equation used to calculate Rn. It must be known, just...
Forum: Fossil Fuel Free 04-11-2024, 01:05 PM
Replies: 40
Views: 1,840
Posted By aerohead
' how was'

Our 'eclipse' was mostly 'eclipsed' by clouds. We ended up in Uvalde's public park. Got only a few 'glimpses' between clouds. 4.5-minutes of 'night time' , a temperature drop.
No regrets. I had an...
Forum: Fossil Fuel Free 04-11-2024, 12:49 PM
Replies: 40
Views: 1,840
Posted By aerohead
'reported costs'

---------------------------------------------------------------------------------- 1)There is absolutely zero specificity in TEXDOT's reporting, so we don't really 'know' what it that they're telling...
Forum: Aerodynamics 04-11-2024, 12:09 PM
Replies: 7
Views: 319
Posted By aerohead
CIVIC's mpg potential

I never said this:
Drafting and 18-wheeler, at an illegally-close distance ( MythBusters and the Dodge 300 sedan ) at your chosen test speed, long enough to capture it's highway mpg is going to tell...
Forum: Fossil Fuel Free 04-04-2024, 11:25 AM
Replies: 40
Views: 1,840
Posted By aerohead
more BOLT quanta

As to the recent trip, at the day's pricing:
* using only public charging, the trip would cost $ 83.43.
* an ICE version of the BOLT, at 32-mpg, would have cost $ 76.59.
* the BOLT, at my electric...
Forum: Aerodynamics 04-04-2024, 10:23 AM
Replies: 5
Views: 279
Posted By aerohead
' HVAC cowl inlet openings '

* The ventilation systems are 'closed' during wind tunnel, and CFD testing of production cars.
* A 'separation bubble', should it exist there at the cowl, will just travel along with the car, with...
Forum: Fossil Fuel Free 04-01-2024, 11:47 AM
Replies: 40
Views: 1,840
Posted By aerohead
Made it home with BOLT

So, I made it in yesterday, late afternoon.
Weather is threatening large hail, so I scrambled to clear enough space in the shop for the car ( originally I had until this coming September to...
Forum: Aerodynamics 03-23-2024, 11:26 AM
Replies: 15
Views: 732
Posted By aerohead
' commute '

All the data you collect is valuable information. The more the better.
Considering the specific conditions of each run, you're likely to experience 'trends.' This is your target.
And the more we...
Forum: Aerodynamics 03-21-2024, 11:11 AM
Replies: 15
Views: 732
Posted By aerohead
' 50-mile roundtrip '

Not to be overly critical, but, in mechanical engineering, the car would be driven 50-miles, at 50-MPH just to achieve thermal equilibrium for all the dynamic parts, at whatever the ambient outdoor...
Forum: Fossil Fuel Free 03-21-2024, 10:32 AM
Replies: 40
Views: 1,840
Posted By aerohead
little update

* I got insurance on the car.
* I managed to buy an electronic bus ticket online.
* I depart for New Mexico on Tuesday, late afternoon, on a 21.5-hour trip.
* AeroStealth will pick me up at the...
Forum: Aerodynamics 03-18-2024, 12:03 PM
Replies: 102
Views: 7,373
Posted By aerohead
' A2 Tunnel CYBERTRUCK test data '

I watched the video where I could expand the screen dimensions.
* A frontal area of 33.0 square-feet ( 3.0658-meters-squared ),was used
* Test section airspeed was calculated @ 65-MPH /...
Forum: Aerodynamics 03-16-2024, 11:20 AM
Replies: 102
Views: 7,373
Posted By aerohead
' let's ask '

I'd be 'figuring' from Cd 1.17, but it doesn't matter as long as the premise is reported, as Gary has done in the video. It's said that, some aeronautical engineers are found to adhere to the Cd 1.0...
Forum: The Lounge 03-16-2024, 10:14 AM
Replies: 1,436
Views: 102,227
Posted By aerohead
' citation '

Here's something which explains what's happening presently, and was predicted to happen, and accelerate, as Earth cannot dissipate Tropospheric heat, as it did before the 'Anthropocene,' the setup...
Forum: Aerodynamics 03-14-2024, 12:34 PM
Replies: 13
Views: 411
Posted By aerohead
' attracted '

In another life, I'd put it on that canoe transom, add at least one outrigger, then shade the boat under a PV array, and spend day and night on some lake.
Forum: Aerodynamics 03-14-2024, 11:51 AM
Replies: 13
Views: 411
Posted By aerohead
' 3.15:1 'strut' vs 'round' tubing '

I did some simplified 'pencil-whipping':
1) Same propeller
2) Same motor nacelle
3) 3.15:1 NAVY strut of approximately twice the thickness of the round tubing it replaces is the only variable
4)...
Forum: Aerodynamics 03-14-2024, 11:07 AM
Replies: 22
Views: 1,660
Posted By aerohead
' Cd 0.219 '

It doesn't compare to the 1947 V2 Saggita, Kdf Wagen, Type 60, by Fachsenfeld as far as aerodynamic body efficiency goes, but it does allow for more usable interior volume.
Forum: Aerodynamics 03-11-2024, 12:04 PM
Replies: 13
Views: 411
Posted By aerohead
' compare'

1) We'd need the fineness-ratio for their 'strut' .
2) That would allow us to find it's 2-D drag coefficient for the 'stalk' portion.
3) We could probably come up with the 3-D drag coefficient for...
Forum: Aerodynamics 03-11-2024, 10:55 AM
Replies: 22
Views: 1,660
Posted By aerohead
' how better '

There's two things going on with the 'Highland.'
1) Having a single inlet is an aerodynamic advantage in it's own right.
2) And harvesting all the air, right at the forward stagnation point, allows...
Forum: Fossil Fuel Free 03-11-2024, 10:20 AM
Replies: 40
Views: 1,840
Posted By aerohead
' which two '

I'm going to stick with the ' pitch-allowing', motorcycle front fork-to-trailer hitch-type connection to the car.
This will allow pitching freedom at both the hitch, plus at the trailer's swing-arm....
Forum: Fossil Fuel Free 03-09-2024, 11:55 AM
Replies: 40
Views: 1,840
Posted By aerohead
2019 Chevy BOLT

The original 'plan' was that, I'd be buying AeroStealth's BOLT this coming September.
He called to report that he could get a good deal on a Hyundai IONIQ 5 ( right now! ), so I did an electronic...
Forum: Hybrids 03-07-2024, 10:56 AM
Replies: 16
Views: 838
Posted By aerohead
' Smogging' a California car'

I left California in 1975 and never looked back.
At that time, the California Highway Patrol could shunt all surface traffic into roadside ' snap-inspection' stations.
They were in possession of...
Forum: Aerodynamics 02-29-2024, 10:35 AM
Replies: 4,211
Views: 1,320,846
Posted By aerohead
' youtube '

Wow!
They had every opportunity to give us a frontal area and coefficients, and let us do what we wanted with the raw data.
Alex Tremulis, I believe, reported that the 'backwards' DeSoto was...
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