Search Results - Computers & Fluids

Beaumont, F., Murer, S., Bogard, F., Polidori, G. “…Methods used to study drafting include wind tunnel tests, computational fluid dynamics (CFD), and field observations. …”

Maddocks, P., Walker, A. D. “…This paper presents an aerodynamic investigation into the effect of arm position on drag using Computational Fluid Dynamics. The lowest drag was achieved by moving the hands/arms into a higher position in conjunction to narrowing the elbows better guided the air over the rider`s head and away from the centre of the rider`s body. …”

Giljarhus, K. E. T., Liland, F. F., Bardal, L. M., Oggiano, L.

Taylor, M., Butcher, D., Crickmore, C., Walker, A. D. “…On a flat road, at race speeds, aerodynamic drag is the main resistive force a cyclist must overcome. Computational fluid dynamics (CFD) can be a useful tool to predict and understand the complex flow and, therefore, drive developments to reduce drag. …”

Feier, I. I., Bauer, A. P. “…This study aims to improve brake cooling using modular ducting systems designed via computer-aided design and evaluated with computational fluid dynamics and downhill testing. …”

Térol, S., Costes, A., Malmert, A., Soto-Romero, G., Brunet, E. “…These changes influence both aerodynamic drag -quantified by Computational Fluid Dynamics method (CFD)- and hip angle -computed by 3D software, directly affecting the athlete's capacity for power generation. …”

Blocken, B., Malizia, F., van Druenen, T. “…The assessment is performed by computational fluid dynamics (CFD) simulations validated with wind tunnel tests. …”

Feier, I. “…Four commercial 160 mm diameter bicycle brake discs were modelled with computational fluid dynamics simulations, including all the geometrical design features, such as holes, slots/cutouts, corner radii, and the brake track to hub radial spokes. …”

van Druenen, T., Blocken, B. “…Computers & Fluids…”

Feier, I., Redfield, R. “…A transient, numerical, MATLAB, lumped parameter thermal/mechanical model is created to predict the impact of key design parameters on braking performance and to understand the heat loss mechanisms from the brake system components. Computational fluid dynamics (CFD) simulations are used to estimate the disc surface convective cooling coefficients for the model. …”

Forte, P., Marinho, D. A., Barbosa, T. M., Morais, J. E. “…Numerical simulations by Computational Fluid Dynamics were carried-out at 11.11 m/s (40 km/h) and 20.83 m/s (75 km/) to extract the drag force. …”

Mannion, P., Toparlar, Y., Blocken, B., Hajdukiewicz, M., Andrianne, T., Glifford, E. “…Wind tunnel experiments and computational fluid dynamics simulations were conducted in this research for the analysis of hand-cycling aerodynamics, focused on competitive H1-H4 category hand-cyclists. …”

Malizia, F., van Druenen, T., Blocken, B. “…In wind tunnel tests or computational fluid dynamics simulations, the aerodynamic drag of cycling wheels is often investigated isolated from the rest of the bicycle, and sometimes in static rather than rotating conditions. …”

van Druenen, T., Blocken, B. “…In this paper, uphill drafting is analyzed and quantified by means of drag reductions and power reductions obtained by computational fluid dynamics simulations validated with wind tunnel measurements. …”

Blocken, B., Malizia, F., van Druenen, T., Gillmeier, S. “…Wind tunnel measurements and numerical simulations with computational fluid dynamics were performed. It was shown that drafting at separation distances d = 2.64, 10, 30 and 50 m can reduce the drag of the cyclist down to 52, 77, 88 and 93% of that of an isolated cyclist, respectively. …”

Forte, P., Morais, J. E., Neiva, H. P., Barbosa, T. M., Marinho, D. A. “…Numerical simulations by computer fluid dynamics (CFD) fluent numerical code were conducted at speeds between 1 m/s and 22 m/s, with increments of 1 m/s. …”

Giljarhus, K. E. T., Stave, D. Å., Oggiano, L. “…The parameters that are investigated are the distance between elbows, elbow extension, and distance between hands. Computational fluid dynamics (CFD) simulations of all positions are performed, and a regression model is built from the results. …”

Basri, M. S. M., Kamarudin, K. M., Maidin, N. A., Ab Rahman, M. H. “…The designs are the existing time trial cycling helmet available in the market (Helmet 1), the modified helmets with tail flap at 0, 3, 6 and 9 degrees to horizontal (Helmet 2 to 5) and the modified 10 degrees rotated helmet (Helmet 6). The computational fluid dynamics simulations are performed using ANSYS Fluent and the results in termsof the reduced drag coefficient and flow characteristics for optimal aerodynamic performance are analyzed. …”

Forte, P., Marinho, D. A., Nikolaidis, P. T., Knechtle, B., Barbosa, T. M., Morais, J. E. “…A three-dimensional model of the bicycle and cyclist in the aero position was obtained to run the numerical simulations. Computational fluid dynamics (CFD) and a set of analytical procedures were carried out to assess drag, frontal area and drag coefficient, between 1 m/s and 22 m/s, with increments of 1 m/s. …”

Forte, P., Marinho, D. A., Silveira, R., Barbosa, T. M., Morais, J. E. “…Background and Objectives: The aim of this study was to assess and compare the drag and energy cost of three cyclists assessed by computational fluid dynamics (CFD) and analytical procedures. …”