journal article·2019-09-25Open access

Surface Patterns for Drag Modification in Volleyballs

Sungchan Hong, Takeshi Asai, Byung Mook Weon

Applied Sciences· Volume 9· Issue 19

Abstract

Surface patterns on objects are important in aerodynamics. We show how surface patterns on volleyballs modify their aerodynamic performances. Conventional volleyballs with six panels show different aerodynamic characteristics along transverse and diagonal directions. Interestingly, isotropic surface patterning with hexagons or dimples enables us to achieve isotropic aerodynamics. This result gives insight into surface-mediated flight controls of projectiles through resisting fluid media.
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Research context

OpenAlex topics: Sports Dynamics and Biomechanics · Fluid Dynamics and Turbulent Flows · Sports Analytics and Performance

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Affiliations

Faculty of Health and Sports Science, University of Tsukuba, Tsukuba-City 305-8574, Japan

Soft Matter Physics Laboratory, School of Advanced Materials Science and Engineering, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea

Research Center for Advanced Materials Technology, Sungkyunkwan University, Suwon 16419, Korea

Funding

Ministry of Education, Culture, Sports, Science and Technology · National Research Foundation of Korea

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