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Aerodynamic thermal analysis of a spinning winged projectile
Case Studies in Thermal Engineering, 2022 Aerodynamic heating of spinning flight vehicles have critical military applications such as flight testing, location tracking, stealth, and thermal protection. Based on the numerical method which is verified to be effective in the wind tunnel tests, this article discusses the aerodynamic thermal characteristics of a spinning winged projectile. Firstly,
Jun Zhang +6 more
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Tire aerodynamics with actual tire geometry, road contact and tire deformation
Computational Mechanics, 2018 Tire aerodynamics with actual tire geometry, road contact and tire deformation pose tough computational challenges. The challenges include (1) the complexity of an actual tire geometry with longitudinal and transverse grooves, (2) the spin of the tire ...
T. Kuraishi, K. Takizawa, T. Tezduyar
semanticscholar +2 more sources
Experimental determination of the aerodynamic coefficients of spinning bodies
The Aeronautical Journal, 2019 ABSTRACTTo accurately predict the probabilities of impact damage to aircraft from runway debris, it is important to understand and quantify the aerodynamic forces that contribute to runway debris lofting. These lift and drag forces were therefore measured in experiments with various bodies spun over a range of angular velocities and Reynolds numbers ...
S. Nguyen +4 more
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Spin Rate Measurements in Cricket Bowling Using Magnetometers
Proceedings, 2020 The ability to measure and classify spin has been of great interest to cricket organizations, coaches, and athletes. While video is common, an alternative approach is to use 3D motion capture analysis with reflective spheres, which changes the ...
Aswath Kumar +3 more
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Aerodynamic characteristics of an ogive-nose spinning projectile
Sādhanā, 2018 This work experimentally investigates the Robins–Magnus effect on a 5-caliber spinning projectile at a low subsonic Mach number of 0.1 corresponding to a Reynolds number of 3.2 × 105 based on the model length. The model configuration tested was a cylinder with spherically blunt tangent ogive nose portion.
T. J. S. Jothi, J Lijin
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Experimental studies of the aerodynamics of spinning and stationary footballs [PDF]
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2008 The accurate discrimination of the aerodynamic parameters affecting the flight of sports balls is essential in the product development process. Aerodynamic studies reported to date have been limited, primarily because of the inherent difficulty of making accurate measurements on a moving or spinning ball.
Roy Jones +3 more
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Aerodynamics of Golf Balls in Still Air
, 2018 The following considers lift and drag measurements of 13 production golf ball models propelled through still air in a laboratory setting. The balls travelled at speeds ranging from 18 m/s to 91 m/s and spin ranging from 1500 rpm to 4500 rpm.
Bin Lyu +3 more
semanticscholar +1 more source
Aerodynamic properties of a shuttlecock with spin at high Reynolds number
Procedia Engineering, 2011 AbstractThe badminton shuttlecock has the smallest ballistic coefficient and exhibits the largest in-flight deceleration of any airborne sporting implement. In the present study, measurements of aerodynamic forces are performed at high Reynolds numbers, and the effect of shuttlecock deformation on aerodynamic properties was also investigated.
Seigo Kitta +3 more
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Aerodynamics and Flight Dynamics of Free-Falling Ash Seeds
, 2017 Samaras or winged seeds spread themselves by wind. Ash seed, unlike other samaras, has a high aspect ratio wing which can generate enough lift force to slow down descent by rotating about the vertical axis and spinning around its wing span axis ...
Rui Fang, Yanlai Zhang, Yanpeng Liu
semanticscholar +1 more source
Computational aerodynamics of baseball, soccer ball and volleyball
, 2014 Recent advances in the computing power of modern computers have made computational fluid dynamics studies particularly interesting and feasible. We used the computational fluid dynamics method to solve the physical governing equations of the air flow ...
P. Jalilian +3 more
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