Title: Numerical simulation and ventilation efficiency of bicycle helmets
Authors: Zerihun Desta, Tadiwos ×
De Bruyne, Guido
Aerts, Jean-Marie
Baelmans, Martine
Berckmans, Daniel #
Issue Date: Jul-2008
Publisher: Tech science press
Series Title: Computer Modeling in Engineering & Sciences vol:31 issue:2 pages:61-69
Abstract: This paper demonstrates the use of the concept of the local mean age of air (LMAA) to quantify ventilation effectiveness under bicycle rider's safety helmets. The specific objective is to study the effect of helmet openings on the resulting ventilation effectiveness. TO quantify ventilation effectiveness using the concept of LMAA, dynamic tracer gas data are necessary. The data were generated using a Computational Fluid Dynamics (CFD) model. Two bicycle helmet designs were used and compared with respect to ventilation performance. The result showed that the helmet with more openings had better performance especially at the back of the head. The methodology has practical importance in order to integrate riders comfort criteria in the design of new helmets.
ISSN: 1526-1492
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Building Physics Section
Division M3-BIORES: Measure, Model & Manage Bioresponses (-)
Applied Mechanics and Energy Conversion Section
× corresponding author
# (joint) last author

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