流れ加速型腐食による配管減肉の予測法に関する研究
Investigation on Pipe-wall Thinning Prediction by Flow Accelerated Corrosion
著者:
藤澤 延行 Nobuyuki FUJISAWA 山縣 貴幸 Takayuki YAMAGATA 五十嵐 裕也 Yuya IKARASHI 藤原 和俊 Kazutoshi FUJIWARA 稲田 文夫 Fumio INADA
発刊日:
公開日:
Flow accelerated corrosionPipe-wall thinningPrediction
概要
In this paper, a comparative study of the pipe-wall thinning prediction with existing experimental data is carried out for some typical cases of flow accelerated corrosion of carbon steel. The numerical model tested in this study is the pipe-wall thinning model based on the standard k-εmodel of turbulence with the modification of high-Schmidt-number effect. The comparative study is carried out for the straight pipe flow, the pipe flow behind an orifice and the pipe flow behind a long elbow combined with swirl of Mihama case. The present study indicates that the experimental result of pipe-wall thinning is well reproduced in the numerical result more than a qualitative agreement, which suggests the applicability of mass transfer model for the pipe-wall thinning prediction.
