Numerical modeling and prediction of the effect of cooling drag on the total vehicle drag

A. Rustem Aslan*, Kerem Anbarci, M. Berkay Acikgoz, Omur Icke, Ozgur Aslan, Cenk Dinc

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The effect of the engine cooling on the total drag is evaluated by numerical analyses using CFD methods for a light commercial vehicle. The numerical mesh includes both exterior and interior (engine compartment, under hood components) parts of the vehicle. The effects of radiator and fan on the total drag were calculated separately. The initial and boundary conditions were supported by in house experiments (radiators pressure drop) and manufacturer data (mass-flow rate information of radiator fan) that are used as inputs for the RANS based CFD analyses. The effect of the wheels motion and cruise speed on the cooling drag and total drag is also investigated. Predicted cooling drag corresponds to 6.9% of the total drag which is consistent with the measurements.

Original languageEnglish
Pages (from-to)232-238
Number of pages7
JournalKongqi Donglixue Xuebao/Acta Aerodynamica Sinica
Volume34
Issue number2
DOIs
Publication statusPublished - 1 Apr 2016

Bibliographical note

Publisher Copyright:
© 2016, The Editorial Board of ACTA AERODYNAMICA SINICA. All right reserved.

Keywords

  • Computational Fluid Dynamics
  • Cooling drag
  • Experimental measurements
  • Fan
  • Numerical algorithms
  • Radiator
  • Turbulence modeling

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