化工学报Issue(3)：855-861,7.DOI:10.3969/j.issn.0438-1157.2014.03.013
倾斜通道内泡状流空泡份额分布特性
Characteristics of void fraction distribution of bubbly flow in inclined channels
摘要
Abstract
Experimental investigation was carried out on the characteristics of void fraction distribution in a narrow rectangular duct (3.25 mm×43 mm) as well as a conventional circular tube (i.d.50 mm) under inclined conditions to study the influence of inclination on bubble and gas-liquid interface distribution. Air and purified water were used as the test fluids and three inclination angles of 5°, 10° and 15° were selected for experiments. Only wall peak distribution was observed in the narrow rectangular duct and no core peak was present, while for the circular tube, both were observed. Inclination had similar effect on wall peak distribution in two channels. Accordingly, with increasing inclination angle, the peak near the upper wall of the tube boosted up, whereas, the one near the lower wall weakened gradually, and even disappeared. As to core peak distribution in the circular tube, central broad peak leaned to the upper part of the tube, and its value increased as inclination angle increased. In addition, the position of wall peak in the narrow rectangular duct was closer to the channel center than that in the conventional circular tube.关键词
气液两相流/气泡/界面/倾斜条件/空泡份额Key words
gas-liquid flow/bubble/interface/inclined conditions/void fraction分类
能源科技引用本文复制引用
闫超星,阎昌琪,孙立成,幸奠川,刘国强..倾斜通道内泡状流空泡份额分布特性[J].化工学报,2014,(3):855-861,7.基金项目
国家自然科学基金项目(51076034,11175050)；中央高校基本科研基金项目(HEUCFZ1122)。@@@@supported by the National Natural Science Foundation of China (51076034,11175050) and the Fundamental Research Funds for the Central Universities (HEUCFZ1122) （51076034,11175050）
