From: Aerodynamics of a Rugby Ball Date of download: 10/25/2017 Copyright © ASME. All rights reserved. From: Aerodynamics of a Rugby Ball J. Appl. Mech. 2012;79(2):021020-021020-5. doi:10.1115/1.4005562 Figure Legend: The measured drag coefficient (open symbols) as a function of the Reynolds number for yaw angles between 0 deg and 60 deg. Also shown are the measured drag coefficient (×) and the literature values [] for a sphere. The experimental results of Alam (2009) [] and Seo (2004) [] are also shown as black and gray filled symbols, respectively.

From: Aerodynamics of a Rugby Ball Date of download: 10/25/2017 Copyright © ASME. All rights reserved. From: Aerodynamics of a Rugby Ball J. Appl. Mech. 2012;79(2):021020-021020-5. doi:10.1115/1.4005562 Figure Legend: The measured lift coefficient (open symbols) as a function of the Reynolds number for yaw angles between 10 deg and 60 deg. The experimental results of Alam [] and Seo [] are also shown as black and gray filled symbols, respectively.

From: Aerodynamics of a Rugby Ball Date of download: 10/25/2017 Copyright © ASME. All rights reserved. From: Aerodynamics of a Rugby Ball J. Appl. Mech. 2012;79(2):021020-021020-5. doi:10.1115/1.4005562 Figure Legend: The lift to drag ratio L/D as a function of the yaw angle, α

From: Aerodynamics of a Rugby Ball Date of download: 10/25/2017 Copyright © ASME. All rights reserved. From: Aerodynamics of a Rugby Ball J. Appl. Mech. 2012;79(2):021020-021020-5. doi:10.1115/1.4005562 Figure Legend: The positions of the separation point at the top θ and the bottom φ of the ball with respect to the longitudinal axis of the ball (subscript b) and the air direction (subscript a). The solid lines indicate the best-fit straight lines through selected points and the dashed line is 180 deg minus the yaw angle, representing the position of the ‘back’ tip of the ball, tip Y, with respect to the incoming air flow.

From: Aerodynamics of a Rugby Ball Date of download: 10/25/2017 Copyright © ASME. All rights reserved. From: Aerodynamics of a Rugby Ball J. Appl. Mech. 2012;79(2):021020-021020-5. doi:10.1115/1.4005562 Figure Legend: The position of the upper and lower separation points and the angles they make with respect to the air flow and the longitudinal axis of the ball. Tips X and Y are labeled such that at a yaw angle of 0 deg tip X points directly upwind and tip Y, correspondingly, points downwind.