K
Kenichi Tezuka
Researcher at Tokyo Electric Power Company
Publications - 52
Citations - 375
Kenichi Tezuka is an academic researcher from Tokyo Electric Power Company. The author has contributed to research in topics: Ultrasonic flow meter & Control valves. The author has an hindex of 10, co-authored 52 publications receiving 329 citations.
Papers
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Journal ArticleDOI
Estimating the number of transducers for flow rate measurement using the UVP method downstream of double elbows
TL;DR: In this article, the number of transducers required for accurate flow rate measurements using the ultrasonic velocity profile (UVP) method downstream of double elbows is determined by using the wavenumber of velocity profile fluctuation along a circle on a pipe cross-section.
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A Two-Dimensional Study of Transonic Flow Characteristics in Steam Control Valve for Power Plant
Koichi Yonezawa,Yoshinori Terachi,Toru Nakajima,Yoshinobu Tsujimoto,Kenichi Tezuka,Michitsugu Mori,Ryo Morita,Fumio Inada +7 more
TL;DR: In this paper, various flow patterns are investigated in order to understand the characteristics of the unsteady flow around the valve in thermal and nuclear power plants, and experiments are carried out with simplified two-dimensional valve models.
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A Study of Flow Oscillation on the Steam Control Valve : A Study of Pressure Fluctuation around a Valve by Experimental Approach
TL;DR: In this article, a steam control valve causes vibration of the piping when the opening is in the middle condition, and the occuring region of this fluctuation depends on mass flow rate and valve structure.
Journal ArticleDOI
A Study of Flow Oscillation on the Steam Control Valve (2nd Report, CFD Approach)
TL;DR: In this article, a high-precision 3D CFD code for compressible flow is developed, and the detailed flow characteristics around the valve are studied, and a circumferentially propagating spike-type pressure fluctuation caused by asymmetric flow around valve can be seen.