2026-03-15T17:09:42Z https://kumadai.repo.nii.ac.jp/oai

oai:kumadai.repo.nii.ac.jp:00022963 2023-08-18T01:02:13Z 426:428

マイクロチャンネル内二相流のボイド率,壁面摩擦力および気液界面摩擦力について(<小特集>多相(混相)系における新しい計測とシミュレーション) Void Fraction, Wall and Interfacial Friction Forces for Two-Phase Flow in Microchannel(<Special Issue>Recent Researches in Measurements and Simulations in Multi-Phase Systems) マイクロチャンネル ナイ ニソウリュウ ボイドリツ ヘキメン マサツリョク オヨビ キエキ カイメン マサツリョク ニ ツイテ タソウ コウンソウ ケイ ニ オケル アタラシイ ケイソク ト シミュレーション Kawahara, Akimaro Sadatomi, Michio 川原, 顕磨呂 Kawahara, Akimaro カワハラ, アキマロ 川原 Kawahara カワハラ 顕磨呂 Akimaro アキマロ 佐田富, 道雄 Sadatomi, Michio サダトミ, ミチオ 佐田富 Sadatomi サダトミ 道雄 Michio ミチオ 社団法人 日本機械学会 530 Microchannel Gas-Liquid Two-Phase Flow Void Fraction Interfacial Friction application/pdf 論文(Article) The flow characteristics of the two-phase flows in a 100μm circular horizontal microchannel have been investigated experimentally and analytically. In the experiments, nitrogen gas and one of four liquids (distilled water and 4.8, 49, 100 wt% ethanol in water) were injected through a T-junction type mixer to the microchannel, having smaller diameter than that of the mixer. Both quasi-homogeneous flow and quasi-separated flow was observed depending on gas and liquid flow conditions. Furthermore, the data on void faction, frictional pressure drop and interfacial friction force were found to be larger in the quasi-homogeneous flow than the quasi-separated one. In the analysis, empirical correlations of the liquid-wall friction force and the gas-liquid interfacial friction force were developed respectively for the quasi-homogeneous and the quasi-separated flows. By substituting these correlations into an analytical code based on a one-dimensional two-fluid model, we calculated the void fraction. The calculations reasonably agreed with the data irrespective of the quasi-homogeneous and the quasi-separated ones. http://ci.nii.ac.jp/naid/110006792265@@@http://www.jsme.or.jp 社団法人 日本機械学会 2008-06-25 jpn journal article VoR http://hdl.handle.net/2298/12929 https://kumadai.repo.nii.ac.jp/records/22963 03875016 AN00187441 日本機械学會論文集. B編 74 742 1232 1238 https://kumadai.repo.nii.ac.jp/record/22963/files/110006792265.pdf application/pdf 731.2 kB 2020-03-02