| Main Title |
Assessment of an empirical technique for estimating vehicle aerodynamic drag from vehicle shape parameters / |
| Author |
Smalley, William M.
|
| Other Authors |
|
| Publisher |
U.S. Environmental Protection Agency, Office of Mobile Source Air Pollution Control, |
| Year Published |
1978 |
| Report Number |
EPA 460-3-78-010; ATR-78(7623-03)-1; EPA 68-03-2482 |
| Stock Number |
PB-292 160 |
| OCLC Number |
40818345 |
| Subjects |
Motor vehicles--Aerodynamics
|
| Additional Subjects |
Motor vehicles ;
Aerodynamic drag ;
Aerodynamic loads ;
Wind tunnel models ;
Pressure drag ;
Chrysler vehicles ;
General Motors vehicles ;
Ford vehicles ;
Volkswagen vehicles ;
Porsche vehicles
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 460-3-78-010 |
|
Headquarters Library/Washington,DC |
12/26/2019 |
| ELBD ARCHIVE |
EPA 460-3-78-010 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELCD |
EPA 460/3-78/010 |
|
NVFEL Library/Ann Arbor, MI |
06/21/2017 |
| NTIS |
PB-292 160 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
[107] pages in various pagings : illustrations ; 28 cm |
| Abstract |
This report presents the results of a determination of aerodynamic drag coefficient, CD, based on an empirical prediction technique developed by The Aerospace Corporation in a previous EPA-sponsored study. This method utilizes an aircraft type drag build-up approach wherein the total drag is calculated as the sum of CD contributions from components of the vehicle. Component contributions are determined from various body/chassis shape parameters. The present study was directed toward the acquisition and application of vehicle measurements data as required to evaluate aerodynamic road load by this prediction method for comparison with measured values. Twenty 1977/1978 model year passenger cars were examined for which aerodynamic drag coefficients were derived. Comparison of these results with wind tunnel test data on twelve of the vehicles showed good agreement on an average basis; the maximum disparity in an individual result was 18 percent. |
| Notes |
"EPA 460-3-78-010." "July 1978." Cover title. EPA contract no. 68-03-2482; EPA project officer: Glenn D. Thompson. References follow section 5. |
