Masahiro UMEHARA
著者に関連した記事は2件です。
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第9回
オリフィス下流高速気液二相流および液膜からの液滴発生の可視化計測
著者:
江原 真司,Shinji EBARA,梅原 真弘,Masahiro UMEHARA,橋爪 秀利,Hidetoshi HASHIZUME
発刊日:
公開日:
キーワードタグ:
Gas-liquid two-phase flow Liquid droplet generation Liquid droplet impingement erosion Liquid file Orifice downstream
江原 真司,Shinji EBARA,梅原 真弘,Masahiro UMEHARA,橋爪 秀利,Hidetoshi HASHIZUME
発刊日:
公開日:
キーワードタグ:
Gas-liquid two-phase flow Liquid droplet generation Liquid droplet impingement erosion Liquid file Orifice downstream
Abstract Liquid droplet impingement (LDI) erosion can never be caused when there is not any liquid droplet in a piping system. In this study, the liquid droplet generation from l iquid film formed downstream an orifice in a pipe was studied experimentally and visualized by using a high-speed camera. Water-air two-phase flow was supplied to the orifice and liquid film was formed in the recirculation region downstream the orifice. It was found from the experiment that the liquid film was entrained by the fas...
英字タイトル:
Visualization Experiment of High-speed Gas-liquid Two-phase Flow and Liquid Droplet Generation from Liquid Film downstream of an Orifice
英字タイトル:
Visualization Experiment of High-speed Gas-liquid Two-phase Flow and Liquid Droplet Generation from Liquid Film downstream of an Orifice
第6回
超高速二相流によりオリフィス下流域に発生するエロージョン現象の解明（２）
著者:
梅原 真弘,Masahiro UMEHARA,阿部 祐子,Yuko ABE,結城 和久,Kazuhisa YUKI,戸田 三朗,Saburo TODA,秋葉 真司,Shinji AKIBA
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キーワードタグ:
Erosion Flow Accelerated Corrosion(FAC) Liquid Droplets Impingement(LDI) Orifice Two-Phase Flow Wall Thinning
梅原 真弘,Masahiro UMEHARA,阿部 祐子,Yuko ABE,結城 和久,Kazuhisa YUKI,戸田 三朗,Saburo TODA,秋葉 真司,Shinji AKIBA
発刊日:
公開日:
キーワードタグ:
Erosion Flow Accelerated Corrosion(FAC) Liquid Droplets Impingement(LDI) Orifice Two-Phase Flow Wall Thinning
Pipe wall thinning is one of the most important technical problems in nuclear power plants. For example, the wall thinning occurs by two-phase flow at both the orifice downstream and the first elbow located downstream after the orifice. In this study, a visualization experiment was conducted in order to clarify the detailed mechanism of the wall thinning by erosion (LDI is expected) in the piping system consisting of an orifice, a straight pipe and an elbow.In the experiment a strong pressure at the down ...
英字タイトル:
Analysis (2) of Liquid Droplets Impact Erosion at the orifice downstream area caused by supersonictwo-phase flow
英字タイトル:
Analysis (2) of Liquid Droplets Impact Erosion at the orifice downstream area caused by supersonictwo-phase flow