@article{oai:kumadai.repo.nii.ac.jp:00022958, author = {Kawahara, Akimaro and Sadatomi, Michio and Saruwatari, Shinichi and Sato, Yoshifusa and 川原, 顕磨呂 and Kawahara, Akimaro and 佐田富, 道雄 and Sadatomi, Michio and 猿渡, 真一 and 佐藤, 泰生}, issue = {588}, journal = {日本機械学會論文集. B編}, month = {Aug}, note = {application/pdf, 論文(Article), We present a method for calculating the single-phase turbulent mixing rate between subchannels in nuclear fuel rod bundles. In this method, the mixing rate is calculated using a newly defined subchannel geometry factor, which depends only on the geometry of the subchannel cross section, and the mean turbulent diffusivity computed from Elder's correlation. In order to confirm the validity of the method, experimental data of the turbulent mixing rate were obtained by a tracer technique for single-phase flows of air or water in several multiple channels consisting of two subchannels. The flows were fully developed turbulent flows with a Reynolds number range from 5000 to 66000. The predictions by the proposed method were in good agreement with the experimental data for several subchannel geometries., http://ci.nii.ac.jp/naid/110002402952@@@http://www.jsme.or.jp}, pages = {2875--2881}, title = {サブチャネル形状係数を用いた単相乱流混合量の整理法}, volume = {61}, year = {1995}, yomi = {カワハラ, アキマロ and サダトミ, ミチオ} }