歌野原 陽一
著者に関連した記事は2件です。
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第9回
T字配管合流部に生じる温度変動の数値解析による評価LES Dynamic による格子影響評価一
著者:
歌野原 陽一,Yoichi UTANOHARA,中村 晶,Akira NAKAMURA,三好 弘二,Koji MIYOSHI,笠原 直人,Naoto KASAHARA
発刊日:
公開日:
キーワードタグ:
Computational grid Mixing tee Numerical simulation Temperature fluctuation Thermal fatigue
歌野原 陽一,Yoichi UTANOHARA,中村 晶,Akira NAKAMURA,三好 弘二,Koji MIYOSHI,笠原 直人,Naoto KASAHARA
発刊日:
公開日:
キーワードタグ:
Computational grid Mixing tee Numerical simulation Temperature fluctuation Thermal fatigue
Abstract Thermal fatigue crack may initiate at mixing tee where high and low temperature fluids flow in and mix. In order to prevent piping failure caused by thermal fatigue, an evaluation procedure of fluid temperature fluctuation at mixing tee using numerical simulation has been de veloped. This paper compared results of three computational grids of different resolution and discussed the effect of the grids resolution on predictions. The same simulation conditions were set same as WATLON experiments perf...
英字タイトル:
Numerical Simulation of Temperature Fluctuation Downstream from a T-Junction-Evaluation of Computational Grid Influence Using LES Dynamic Model
英字タイトル:
Numerical Simulation of Temperature Fluctuation Downstream from a T-Junction-Evaluation of Computational Grid Influence Using LES Dynamic Model
第10回
オリフィス下流での減肉速度測定
著者:
中村 晶,Akira NAKAMURA,歌野原 陽一,Yoichi UTANOHARA,村瀬 道雄,Michio MURASE,釜堀 孝一,Koichi KAMAHORI,長屋 行則,Yukinori NAGAYA
発刊日:
公開日:
キーワードタグ:
Corrosion rate Electric resistance method Flow-accelerated corrosion Orifice Validation
中村 晶,Akira NAKAMURA,歌野原 陽一,Yoichi UTANOHARA,村瀬 道雄,Michio MURASE,釜堀 孝一,Koichi KAMAHORI,長屋 行則,Yukinori NAGAYA
発刊日:
公開日:
キーワードタグ:
Corrosion rate Electric resistance method Flow-accelerated corrosion Orifice Validation
In this study, the corrosion rate on the pipe wall downstream from an orifice was measured in order to validate the evaluation code for flow-accelerated corrosion (FAC). Three orifices with aperture ratios . = 0.62, 0.50, 0.41 was used in a test section with 50mm inner pipe diameter. The flow velocity was changed during the test to investigate the effect of mean cross-sectional flow velocity on the FAC rate. The water conditions were 150 degree centigrade, about 0.1ppb of dissolved oxygen concentration...
英字タイトル:
FAC Rate Measurement downstream from an Orifice
英字タイトル:
FAC Rate Measurement downstream from an Orifice