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pro vyhledávání: '"Len Brownlie"'
Autor:
Len Brownlie, Collin Bailey, Jorge Carbo, Dan Judelson, Peter Ostafichuk, Jeff Allison, David Rival
Publikováno v:
Proceedings, Vol 49, Iss 1, p 21 (2020)
In marathon running, maintenance of body temperature is critical for peak performance. Race apparel should maximize ventilation yet current fabric permeability standards are based on airflow rates that are not generated during running. A novel flow m
Externí odkaz:
https://doaj.org/article/c380958231074aa7aeb71cfb8a6967a6
Autor:
Len Brownlie
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology. 235:365-404
The Winter Olympics are a highly competitive sporting environment where subtle improvements in performance can impact the finishing order in many events. Aerodynamic drag is known to be a significant resistive force to human movement in high-speed sp
Autor:
Collin Bailey, Daniel A. Judelson, Jeff Allison, David E. Rival, Len Brownlie, Peter M. Ostafichuk, Jorge E. Carbo
Publikováno v:
Proceedings, Vol 49, Iss 21, p 21 (2020)
In marathon running, maintenance of body temperature is critical for peak performance. Race apparel should maximize ventilation yet current fabric permeability standards are based on airflow rates that are not generated during running. A novel flow m
Autor:
Len Brownlie, Camillan Sæter, Luca Oggiano, Olga Troynikov, Lars Morten Bardal, Lars Roar Sætran
Publikováno v:
Procedia Engineering. 60:91-98
The present work describes and compares previous results in the field of garment aerodynamics combined with not published results coming from recent experiments conducted at the Norwegian University of Science and Technology (NTNU). A number of facto
Publikováno v:
Procedia Engineering. 2:2419-2424
This paper documents a wind tunnel test program that measured the aerodynamic drag (Fd), lift (Fl) and side force (Fs) of 12 contemporary time trial (TT) helmets at yaw angles of 0 to 15∘. Fd measurements at yaw were subjected to a novel analysis t
Autor:
Len Brownlie, Chester Kyle, Jorge Carbo, Nate Demarest, Edward Harber, Richard MacDonald, Matt Nordstrom
Publikováno v:
Sports Technology. 2:53-60
Publikováno v:
Routledge Handbook of Sports Technology and Engineering ISBN: 9780203851036
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9178f7eb052e7c72bedbdbe4cd6f506d
https://doi.org/10.4324/9780203851036.ch15
https://doi.org/10.4324/9780203851036.ch15
Publikováno v:
Procedia Engineering. :697-702
To measure fabric permeability over the body at air velocities encountered in running, a series of air pressure measurements were conducted on a mannequin torso in a wind tunnel. Pressure measurements were made at wind speeds of 3.3 m/sec, 5.3 m/sec
Autor:
Ryan P. Henry, Yuki Aihara, Irena Ilcheva, Peter M. Ostafichuk, Jorge E. Carbo, Edward Louis Harber, Len Brownlie
Publikováno v:
Procedia Engineering. :20-25
In world-class athletic competitions the margin of victory is often exceedingly small and in a range that maybe influenced by aerodynamic drag (Fd). Vortex generators (VG) are small triangular or vane shaped protuberances that have been used successf
Autor:
Serge Dugas, Annick D’Auteuil, Robert Boyd, Paul Kristofic, Guy L. Larose, Dale Stephens, Todd Allinger, Frank W. Meinert, Len Brownlie
Publikováno v:
Procedia Engineering. (2):2375-2380
This paper documents a five year testing program that identified factors affecting the aerodynamic drag ( F d ) of alpine skiers. Wind tunnel Fd measurements of world class alpine skiers and air permeability measurements of ski suits were conducted t