Affordable Access

Publisher Website

Influence of the postion of crew members on aerodynamics performance of two-man bobsleigh

Authors
Journal
Journal of Biomechanics
0021-9290
Publisher
Elsevier
Publication Date
Volume
39
Issue
15
Identifiers
DOI: 10.1016/j.jbiomech.2005.10.011
Keywords
  • Aerodynamics
  • Bobleigh
  • Cfd
Disciplines
  • Computer Science
  • Design

Abstract

Abstract Bobsleigh aerodynamics has long been recognised as one of the crucial performance factors. Although the published research in the area is very limited, it is well known that the leading nations in the sport devote significant resources in research and development of sleds’ aerodynamics. However, the rules and regulations pose strict design constraints on the shape modifications aiming at aerodynamics improvements. The reason for that is two-fold: (i) safety of the athletes and (ii) reduction of equipment impact on competition outcome. One particular area that has not been looked at and falls outside the current rules and regulations is the influence of the crew positioning and internal modifications on the aerodynamic performance. The current study presents results on numerical simulation of the flow in the cavity underpinned with some experimental measurements including flow visualisation of the air circulation around the bobsleigh. A simplified computational model was developed to assess the trends and its results validated by windtunnel tests. The results show that crew members influence the drag level significantly and suggest that purely internal modifications can be introduced to reduce the overall resistance drag.

There are no comments yet on this publication. Be the first to share your thoughts.