Evaluation of Turbulence Statistics from Engine Cooling Fan Velocity Measurements

The present communication reports on processing and interpreting velocity measurements in the wake of a cooling fan. Velocity data are typically phase averaged to create statistics that would be observed in a rotating frame of reference. The difference between any given instantaneous measurement and the phase mean value is often referred to as the fluctuating component of velocity. These deviations can be caused by a variety of mechanisms (blade vibration for example) and do not necessarily represent “turbulence”. A different approach using an eigenfunction decomposition of the data is used on a sample data set to help distinguish between cycle-to-cycle variations and turbulence.

• Record URL:
  • https://doi.org/10.4271/2001-01-1710
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Morris, Scott C
• Conference:
  • Vehicle Thermal Management Systems Conference & Exposition
  • Location: Nashville Tennessee, United States
  • Date: 2001-5-15
• Publication Date: 2001-1-14

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Engine fans; Statistical analysis; Turbulence
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01798312
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2001-01-1710
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:19AM