Rotor Stator Interactions in Engine Cooling Fan Systems

For Valeo Engine Cooling, CFD now plays a key role as a design tool in the optimization of its fans as shown in [13] [6]. The next challenge has been to address installation effects found in the engine block compartment on the fan performances. A first step towards this goal has been to consider the interaction of the fan with the struts or the stators of its support. The potential gains of a stage configuration are first addressed by a dimensional analysis and a simplified radial equilibrium approach. The first CFD results achieved during the optimization of the rotor-stator system implemented on the new fan range are then presented. These are two-dimensional and three-dimensional Navier-Stokes predictions of steady state rotor-stator interaction with or without pitch change. Parametric studies on the stator stagger angle and shape have been performed. Results clearly evidence that inadapted stator geometry can lead to dramatic decrease of efficiency compared to the one obtained obtained without stators. Conversely, suitable stator profile can lead to noticeable pressure increase and flow re-alignment.

• Record URL:
  • https://doi.org/10.4271/1999-01-0580
• 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:
  • Moreau, Stéphane
• Conference:
  • International Congress & Exposition
  • Location: Detroit Michigan, United States
  • Date: 1998-2-23 to 1998-2-26
• Publication Date: 1998-1-23

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; Fluid dynamics; Optimization
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01794175
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 1999-01-0580
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:17AM