The focus of the present chapter is to analysis aerodynamic forces and moment on sport
balls, badminton shuttlecock and javelin. Lift force is analytically obtained employing Kutta …

Abstract Computational Fluid Dynamics appears to be poised on the threshold of rapid
advances powered by the recent developments in deep machine learning. Deep machine …

Despite the well-known tradeoff between speed and accuracy, skilled people often
demonstrate the ability to maintain high accuracy during fast movements. We focused on two …

Surface patterns on objects are important in aerodynamics. We show how surface patterns
on volleyballs modify their aerodynamic performances. Conventional volleyballs with six …

The football game is the most popular, played, and loved sport around the world. The advent
of technological breakthroughs and the continuous increase in consumer demand have led …

Featured Application This study indicates that the trajectory of a spinning soccer ball is
regular and stable. This result is expected to help strikers to accurately aim a curled shot or …

Bola voli dan bola sepak merupakan 2 cabang olahraga yang banyak diminati masyarakat.
Penelitian dan pengembangan bola akan berpengaruh terhadap unjuk kerja bola dan dapat …

The seams of a baseball have a large influence in the dynamics of non-spinning balls, so
that the Navier–Stokes equations must be solved if one wants to have a full description of …

In this study, a baseball pitch was examined to try to understand its behavior, and make a
predictive model of it. A baseball pitch was tested experimentally with a wind tunnel and …

不同層級棒球選手投擲動作技術優劣可以球體與人體兩層面加以評估, 其中以球速與轉速為判定
的重要指標, 但僅以最後結果表現推估可能不夠完整與客觀, 更重要的是釐清人體手部控制的 …