


                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                             Washington, DC  20460


									OFFICE OF
									AIR AND RADIATION

July 20, 2011

MEMORANDUM

SUBJECT:	Index of docketed test reports in the from aerodynamic test facilities that contributed to USEPA's research

FROM:	Arvon Mitcham, Mechanical Engineer, and Sam Waltzer, Environmental Engineer.

TO:	Docket EPA-HQ-OAR-2010-0162

This memorandum provides an index of the test reports received by USEPA that present test results and technical discussion from facilities conducting aerodynamic research in support of the rulemaking Control of Greenhouse Gas Emissions from Medium- and Heavy-Duty Vehicles Notice of Proposed Rulemaking (EPA 420-F-10-038).  Specifically, these reports cover the wind tunnel and computation fluid dynamics portion.  Please refer to the table below for the index and elsewhere in the docket for coastdown reports.  


                                   Facility
                                Name of Report
                        SAE J1252 (Wind Tunnel) Testing
Full-scale testing
National Research Council of Canada (NRC-C)
"An Evaluation of Techniques for the Measurement of Commercial Truck Aerodynamic Drag," November 25, 2010, Jason Leuschen and Bernard Tanguay (Aerodynamics Laboratory), Gordon Poole and William Mayda (Centre for Surface Transportation Technology). 
Reduced-Scale (1/8th) testing
Auto Research Center  -  Indianapolis (ARC-Indy)
Auto Research Center Scale Model Wind Tunnel Study Using a Class Eight Semi Truck and Wabash Trailer  -  Truck A Model


Auto Research Center Scale Model Wind Tunnel Study Using a Class Eight Semi Truck and Wabash Trailer  -  Truck B Model


Auto Research Center Class Eight Semi Truck Aerodynamic Fuel Economy Test  -  Truck C Model
                      Computational Fluid Dynamics (CFD)
Navier-Stokes based software (RANS)
CD-Adapco
"Aerodynamics of Large Vehicles, " "Guidelines for Steady State Aerodynamics of Large Vehicles," and "Comments on EPA-HQ-OAR-2010-0162: Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium and Heavy-Duty Engines and Vehicles," Gregg Gustafson, Nick Appleyard and Frederick J. Ross
Lattice-Boltzmann based software
Exa Corporation
"PowerFLOW Results:  Presentation in Ann Arbor," "Exa Meeting with EPA," and "Additional Results for EPA: Reduced Resolution Tests," Doug Hatfield, Kevin Horrigan and Dr. Ales Alajbegovic.




