Evaluation of Turbulence Statistics from Engine Cooling Fan Velocity Measurements

2001-01-1710

05/14/2001

Event
Vehicle Thermal Management Systems Conference & Exposition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/2001-01-1710
Pages
7
Citation
Morris, S., "Evaluation of Turbulence Statistics from Engine Cooling Fan Velocity Measurements," SAE Technical Paper 2001-01-1710, 2001, https://doi.org/10.4271/2001-01-1710.
Additional Details
Publisher
Published
May 14, 2001
Product Code
2001-01-1710
Content Type
Technical Paper
Language
English