Search Results - "Hiroyuki Okuizumi"

Measurement of aerodynamic force and moment acting on a javelin using a magnetic suspension and balance system by Seo, Kazuya, Okuizumi, Hiroyuki, Konishi, Yasufumi, Kobayashi, Takuto, Hasegawa, Hiroaki, Obayashi, Shigeru

“…The rules governing the dimensions of the Javelin were substantially changed in 1986. It was considered that this new design guaranteed there was zero pitching…”
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Effect of fineness ratios of 0.75–2.0 on aerodynamic drag of freestream-aligned circular cylinders measured using a magnetic suspension and balance system by Nonomura, Taku, Sato, Keiichiro, Fukata, Keita, Nagaike, Hayato, Okuizumi, Hiroyuki, Konishi, Yasufumi, Asai, Keisuke, Sawada, Hideo

“…The drag coefficients of freestream-aligned circular cylinders of fineness ratios of 0.75–2.0 were investigated with a magnetic suspension and balance system…”
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Enhanced expected hypervolume improvement criterion for parallel multi-objective optimization by Wang, Qingyu, Nakashima, Takuji, Lai, Chenguang, Hu, Bo, Du, Xinru, Fu, Zhongzheng, Kanehira, Taiga, Konishi, Yasufumi, Okuizumi, Hiroyuki, Mutsuda, Hidemi

“…To reduce optimization time spent on real-world expensive multi-objective optimization problems (MOPs), a relatively large number of points added in each cycle…”
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Modified Algorithms for Fast Construction of Optimal Latin-Hypercube Design by Wang, Qingyu, Nakashima, Takuji, Lai, Chenguang, Mutsuda, Hidemi, Kanehira, Taiga, Konishi, Yasufumi, Okuizumi, Hiroyuki

“…As accuracy of optimization can not be guaranteed without high-quality samples, the distribution of a finite number of evaluation points where experiments…”
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An improved system for efficient shape optimization of vehicle aerodynamics with “noisy” computations by Wang, Qingyu, Nakashima, Takuji, Lai, Chenguang, Du, Xinru, Kanehira, Taiga, Konishi, Yasufumi, Okuizumi, Hiroyuki, Mutsuda, Hidemi

“…To efficiently achieve tangible improvements in the aerodynamic objectives of a vehicle based on a computational fluid dynamics (CFD) simulation that produces…”
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Introduction of 1-m MSBS in Tohoku University, New Device for Aerodynamics Measurements of the Sports Equipment by Hiroyuki Okuizumi, Hideo Sawada, Hayato Nagaike, Yasufumi Konishi, Shigeru Obayashi

“…Support interference in wind tunnel testing is an unavoidable effect. It is difficult to measure the aerodynamic force acting on a model such as a ball owing…”
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Measurement of the Aerodynamic Forces Acting on a Non-Spinning Javelin Using an MSBS by Takuto Kobayashi, Kazuya Seo, Shoya Kaneda, Kasumi Sasaki, Kento Shinji, Shogo Oyama, Hiroyuki Okuizumi, Yasufumi Konishi, Hiroaki Hasegawa, Shigeru Obayashi

“…Using the world’s largest magnetic suspension and balance system (MSBS) and a low-turbulence wind tunnel, we successfully measured the aerodynamic forces…”
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Effect of Camber on Badminton Shuttlecock by Yasufumi Konishi, Yusuke Matsushima, Takashi Misaka, Hiroyuki Okuizumi, Kensuke Tanaka, Shigeru Obayashi

“…In this study, we conducted experimental measurements and computational analysis to investigate the aerodynamics of a shuttlecock, especially the effects of…”
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