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Yuki, Kazuhisa*; Ohara, Hiroshi*; Hashizume, Hidetoshi*; Tanaka, Masaaki; Muramatsu, Toshiharu; Toda, Saburo*
Proceedings of 7th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety (NUTHOS-7) (CD-ROM), 21 Pages, 2008/10
Velocity measurement by PIV (Particle Image Velocimetry) and measurement of fluid-temperature are conducted in a mixing tee with an elbow on the upstream side of the tee. Parameters in the experiment are the distance between the elbow pipe exit and the tee and the curvature radius of the elbow pipe. By the experiment, certain suppression techniques for high cycle thermal fatigue in the mixing tee area are proposed to control the distance between the elbow and the tee according to the curvature radius of the elbow.
Yuki, Kazuhisa*; Sugawara, Yoshimasa*; Hosseini, S. M.*; Hashizume, Hidetoshi*; Toda, Saburo*; Tanaka, Masaaki; Muramatsu, Toshiharu
Nuclear Science and Engineering, 158(2), p.194 - 202, 2008/02
Times Cited Count：3 Percentile：23.55(Nuclear Science & Technology)This study aims at clarifying a relationship between non-isothermal fluid mixing in a T-junction area with 90-deg bend upstream and temperature fluctuations induced by the unstable mixing, by visualizing the flow fields with particle image velocimetry and measuring fluid-temperature fluctuation in the vicinity of a wall. By the experiment, flow-pattern of the jet flowing out from a branch pipe and characteristics of temperature fluctuation in mixing area were clarified in relation to the secondary flow generated in the 90-deg bend.
Toda, Saburo*; Yuki, Kazuhisa*; Akimoto, Hajime
JAERI-Tech 2004-008, 58 Pages, 2004/03
JAERI-Tech-2004-008.pdf:5.14MB
no abstracts in English
