Aerodynamic benefit for a cyclist by a following motorcycle
TLDR
In this paper, the 3D steadystate Reynolds-Averaged Navier-Stokes simulations with the standard k-e model are validated by the wind-tunnel tests.About:
This article is published in Journal of Wind Engineering and Industrial Aerodynamics.The article was published on 2016-08-01 and is currently open access. It has received 51 citations till now.read more
Citations
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Aerodynamic drag in cycling pelotons: new insights by CFD simulation and wind tunnel testing
Bert Blocken,Bert Blocken,Thijs van Druenen,Yasin Toparlar,Fabio Malizia,Paul Mannion,Paul Mannion,Thomas Andrianne,Thierry Marchal,Geert-Jan Maas,Jan Diepens +10 more
TL;DR: In this article, high-resolution CFD simulations are performed with the RANS equations and the Transition SST-k-ω model to investigate the drag reductions in two pelotons of 121 cyclists.
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Riding against the wind: a review of competition cycling aerodynamics
TL;DR: A review of the aspects of aerodynamics that are critical to understanding flows around cyclists under racing conditions, and the methods used to evaluate and improve aerodynamic performance at the elite level is presented in this paper.
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Aerodynamic drag in cycling team time trials
TL;DR: This paper presents an analysis for up to 9 drafting cyclists in a single paceline, with wheel-to-wheel spacings d, which shows that for much longer theoretical single pacelines, a staggered peloton configuration can yet be about two times more drag efficient.
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Aerodynamic analysis of different cyclist hill descent positions
TL;DR: In this article, the authors presented an aerodynamic analysis of 15 different hill descent positions, assuming that the hill slope is steep enough so pedaling is not required to gain speed and that the descent does not include sharp bends necessitating changes in position.
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Aerodynamic performance enhancement analysis of horizontal axis wind turbines using a passive flow control method via split blade
TL;DR: In this article, the effects of a passive flow control method on aerodynamic performance of a HAWT by splitting its blades along the span were numerically investigated, and the results revealed that for an attached flow, torque value are sensitively dependent upon split location and injected flow angle.
References
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Journal ArticleDOI
The prediction of laminarization with a two-equation model of turbulence
W.P. Jones,Brian Launder +1 more
TL;DR: In this article, the local turbulent viscosity is determined from the solution of transport equations for the turbulence kinetic energy and the energy dissipation rate, and the predicted hydrodynamic and heat-transfer development of the boundary layers is in close agreement with the measured behaviour.
Book
Low-Speed Wind Tunnel Testing
William H. Rae,Alan Pope +1 more
TL;DR: The use of wind tunnel data for aerodynamic experiments has been studied in this article, where three dimensions of three-dimensional flow and pressure, flow, and shear stress measurements are used to calibrate the test section.
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AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings
Yoshihide Tominaga,Akashi Mochida,Ryuichiro Yoshie,Hiroto Kataoka,Tsuyoshi Nozu,Masaru Yoshikawa,Taichi Shirasawa +6 more
TL;DR: In this paper, the authors present guidelines for using computational fluid dynamics (CFD) techniques for predicting pedestrian wind environment around buildings in the design stage, based on cross-comparison between CFD predictions, wind tunnel test results and field measurements.
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Computational Fluid Dynamics for urban physics: Importance, scales, possibilities, limitations and ten tips and tricks towards accurate and reliable simulations
TL;DR: In this paper, the importance of urban physics related to the grand societal challenges is described, after which the spatial and temporal scales in urban physics and the associated model categories are outlined.
Journal ArticleDOI
50 years of Computational Wind Engineering: Past, present and future
Bert Blocken,Bert Blocken +1 more
TL;DR: In this paper, the authors provide a perspective on the past, present and future of Computational Wind Engineering (CWE) and provide a more detailed view on CFD simulation of pedestrian-level wind conditions around buildings.