D
Donghyuk Kang
Researcher at Saitama University
Publications - 35
Citations - 210
Donghyuk Kang is an academic researcher from Saitama University. The author has contributed to research in topics: Cavitation & Centrifugal pump. The author has an hindex of 7, co-authored 29 publications receiving 163 citations. Previous affiliations of Donghyuk Kang include Aoyama Gakuin University & Osaka University.
Papers
More filters
Journal ArticleDOI
Cause of Cavitation Instabilities in Three Dimensional Inducer
TL;DR: In this article, the velocity disturbance caused by cavitation was obtained by subtracting the velocity vector under non-cavitating condition from that under cavitating condition, and it was found that there exists a disturbance flow towards the trailing edge of the tip cavity.
Journal ArticleDOI
Suppression of Cavitation Instabilities in an Inducer by Circumferential Groove and Explanation of Higher Frequency Components
Donghyuk Kang,Yusuke Arimoto,Koichi Yonezawa,Hironori Horiguchi,Yutaka Kawata,Chunill Hah,Yoshinobu Tsujimoto +6 more
TL;DR: In this article, a circumferential groove was designed based on CFD so that the tip leakage vortex is trapped by the groove and does not interact with the next blade, which can suppress rotating cavitation, asymmetric cavitation and cavitation surge.
Journal ArticleDOI
Study of Cavitation Instabilities in Double-Suction Centrifugal Pump
TL;DR: In this paper, a double-suction centrifugal pump was tested to identify cavitation instabilities in the experiment and Computational Fluid Dynamics (CFD) was used to classify them into three types: surge, surge and rotating cavitation.
Journal ArticleDOI
Inducer Design to Avoid Cavitation Instabilities
Donghyuk Kang,Toshifumi Watanabe,Koichi Yonezawa,Hironori Horiguchi,Yutaka Kawata,Yoshinobu Tsujimoto +5 more
TL;DR: In this paper, three inducers were designed to avoid cavitation instabilities by avoiding the interaction of the tip cavity with the leading edge of the next blade, which was accomplished by avoiding a weaker tip leakage vortex cavity with stronger disturbance by backflow vortices.
Journal ArticleDOI
Analytical Study of Cavitation Surge in a Hydraulic System
Donghyuk Kang,Kazuhiko Yokota +1 more
TL;DR: One-dimensional stability analyses of cavitation surge were performed in hydraulic systems consisting of an upstream tank, an inlet pipe, a cavitating pump, a downstream pipe, and a downstream tank to clarify effects of an accumulator, pipe lengths and gradients of pressure and suction performances on Cavitation surge.