With many corporations and suppliers conducting development and validation tests at different Climatic Wind Tunnel sites@ there is an increasing need for a recommended best practice that defines a process by which climatic wind tunnels can be correlated. This document addresses the test methods and metrics used to obtain similar results@ independent of location@ for Heating Ventilation and Air Conditioning (HVAC) and Powertrain Cooling (PTC) development. This document should be used as a guideline to make sure key aspects of tunnel testing are covered when comparing various climatic wind tunnel facilities.The depth of the correlation program is ultimately influenced by program objectives. Therefore a correlation program@ for the intent and purposes of this document@ can range from just a few tests to a full analysis that involves multiple vehicle tests identifying limitations and statistical boundaries. Using to recommendations in this document will eliminate most of the items that effect facility mismatch in a correlation program.?
SAE J2777-2007 Referenced Document
SAE J2263-1996 Road Load Measurement Using Onboard Anemometry and Coastdown Techniques
SAE J2264-1995 Chassis Dynamometer Simulation of Road Load Using Coastdown Techniques
SAE J2777-2007 history
2022SAE J2777-2022 Recommended Best Practice for Climatic Wind Tunnel Correlation
2016SAE J2777-2016 Recommended Best Practice for Climatic Wind Tunnel Correlation
2007SAE J2777-2007 Recommended Best Practice for Climatic Wind Tunnel Correlation