昆明理工大学学报(自然科学版)
昆明理工大學學報(自然科學版)
곤명리공대학학보(자연과학판)
JOURNAL OF KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY(SCIENCE AND TECHNOLOGY)
2014年
4期
77-82
,共6页
王冲%杨濮亦%徐建新%王仕博%王华
王遲%楊濮亦%徐建新%王仕博%王華
왕충%양복역%서건신%왕사박%왕화
顶吹搅拌%多相流%流型识别%平均周期
頂吹攪拌%多相流%流型識彆%平均週期
정취교반%다상류%류형식별%평균주기
mixing by top blowing%multi-phase flow%flow regime identification%average period
采用竖直Y型玻璃管对贫化电炉顶吹还原油枪的气-液混合喷吹过程进行了水模型实验,并用高速摄像仪对实验中所产生的管内多相流流型进行了捕捉。基于灰度矩阵使用S形方法对两相流流型数字图像的时间序列灰度值进行数字特征提取,并采用无间隔及有间隔的平均周期法对采集到的流型进行特征分析。实验结果证明该方法可以有效地识别实验中产生的单气泡流、多气泡流、搅拌流及弹状流。
採用豎直Y型玻璃管對貧化電爐頂吹還原油鎗的氣-液混閤噴吹過程進行瞭水模型實驗,併用高速攝像儀對實驗中所產生的管內多相流流型進行瞭捕捉。基于灰度矩陣使用S形方法對兩相流流型數字圖像的時間序列灰度值進行數字特徵提取,併採用無間隔及有間隔的平均週期法對採集到的流型進行特徵分析。實驗結果證明該方法可以有效地識彆實驗中產生的單氣泡流、多氣泡流、攪拌流及彈狀流。
채용수직Y형파리관대빈화전로정취환원유창적기-액혼합분취과정진행료수모형실험,병용고속섭상의대실험중소산생적관내다상류류형진행료포착。기우회도구진사용S형방법대량상류류형수자도상적시간서렬회도치진행수자특정제취,병채용무간격급유간격적평균주기법대채집도적류형진행특정분석。실험결과증명해방법가이유효지식별실험중산생적단기포류、다기포류、교반류급탄상류。
Water modeling experiment is carried out on the mixing process of top-blowing gas-liquid fluid in electric furnace using a vertical glass Y shape.Photos of the regime of multi-phase flow in the tube are taken by a high-speed camera.An S-shaped flow regime method based on gray level co-occurrence matrix is adopted to extract the numerical features of gray value of the time series based on numerical pictures of regimes of two phase flows.Analysis is done to the regimes by the average period methods about interval and free interval.The experimental results show that the method can effectively identify the single bubble flow,multi bubble flow,churn flow and slug flow.