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A comparison between physical and virtual experiments of convective heat transfer between head and bicycle helmet

Mukunthan, Shriram; Kuklane, Kalev LU ; Huysmans, Toon and de Bruyne, Guido (2017) AHFE 2017 International Conference on Human Factors in Simulation and Modeling, 2017 In Advances in Human Factors in Simulation and Modeling - Proceedings of the AHFE 2017 International Conference on Human Factors in Simulation and Modeling, 2017 591. p.517-527
Abstract

Thermal performance of five bicycle helmets was evaluated with a thermal manikin head with six zones. Evaluation was made with physical and virtual experimental methods. Ambient temperature maintained at 24 °C and surface temperature of the thermal manikin head was set to 34 °C. Experiments were performed for air velocities of 1.6 m/s and 6 m/s. Heat transfer (W) of four thermal zones was recorded for five helmets and compared with a nude thermal manikin head to assess thermal performance. Virtual experiments were performed using commercial CFD codes with a realizable k-e turbulence model. Correlation coefficients of 0.78 (1.6 m/s) and 0.79 (6 m/s) were found between physical and virtual experiments. A combined physical and virtual... (More)

Thermal performance of five bicycle helmets was evaluated with a thermal manikin head with six zones. Evaluation was made with physical and virtual experimental methods. Ambient temperature maintained at 24 °C and surface temperature of the thermal manikin head was set to 34 °C. Experiments were performed for air velocities of 1.6 m/s and 6 m/s. Heat transfer (W) of four thermal zones was recorded for five helmets and compared with a nude thermal manikin head to assess thermal performance. Virtual experiments were performed using commercial CFD codes with a realizable k-e turbulence model. Correlation coefficients of 0.78 (1.6 m/s) and 0.79 (6 m/s) were found between physical and virtual experiments. A combined physical and virtual evaluation methodology allows creating a design iteration process with virtual prototypes, physical prototypes and commercially available helmets.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
CFD, Convective heat transfer, Cooling efficiency, Thermal manikin, Turbulence models, Wind tunnel experiments
in
Advances in Human Factors in Simulation and Modeling - Proceedings of the AHFE 2017 International Conference on Human Factors in Simulation and Modeling, 2017
volume
591
pages
11 pages
publisher
Springer Verlag
conference name
AHFE 2017 International Conference on Human Factors in Simulation and Modeling, 2017
external identifiers
  • scopus:85021399077
ISSN
21945357
ISBN
9783319605906
DOI
10.1007/978-3-319-60591-3_47
language
English
LU publication?
yes
id
d93018cb-424f-4db1-805a-97fbbfa37b16
date added to LUP
2017-07-11 08:09:07
date last changed
2017-07-31 09:03:31
@inproceedings{d93018cb-424f-4db1-805a-97fbbfa37b16,
  abstract     = {<p>Thermal performance of five bicycle helmets was evaluated with a thermal manikin head with six zones. Evaluation was made with physical and virtual experimental methods. Ambient temperature maintained at 24 °C and surface temperature of the thermal manikin head was set to 34 °C. Experiments were performed for air velocities of 1.6 m/s and 6 m/s. Heat transfer (W) of four thermal zones was recorded for five helmets and compared with a nude thermal manikin head to assess thermal performance. Virtual experiments were performed using commercial CFD codes with a realizable k-e turbulence model. Correlation coefficients of 0.78 (1.6 m/s) and 0.79 (6 m/s) were found between physical and virtual experiments. A combined physical and virtual evaluation methodology allows creating a design iteration process with virtual prototypes, physical prototypes and commercially available helmets.</p>},
  author       = {Mukunthan, Shriram and Kuklane, Kalev and Huysmans, Toon and de Bruyne, Guido},
  booktitle    = {Advances in Human Factors in Simulation and Modeling - Proceedings of the AHFE 2017 International Conference on Human Factors in Simulation and Modeling, 2017},
  isbn         = {9783319605906},
  issn         = {21945357},
  keyword      = {CFD,Convective heat transfer,Cooling efficiency,Thermal manikin,Turbulence models,Wind tunnel experiments},
  language     = {eng},
  month        = {06},
  pages        = {517--527},
  publisher    = {Springer Verlag},
  title        = {A comparison between physical and virtual experiments of convective heat transfer between head and bicycle helmet},
  url          = {http://dx.doi.org/10.1007/978-3-319-60591-3_47},
  volume       = {591},
  year         = {2017},
}