| 鼓泡塔内气液两相流速度分布 |
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| 引用本文： | 王树立,张敏卿,范敏英.鼓泡塔内气液两相流速度分布[J].辽宁石油化工大学学报,1997(3). |
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| 作者姓名： | 王树立 张敏卿 范敏英 |
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| 作者单位： | 抚顺石油学院化工机械系，天津大学化工研究所 |
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| 摘 要： | 用激光多普勒测速仪（ＬＤＶ）详细测量了气液鼓泡塔内气液并流和气液逆流时的流速分布。鼓泡塔内为复杂的三维流动。气液并流时，在升力作用下气泡集聚在塔中心区。气液逆流时，气泡集聚在塔壁面附近。中心速度较大且随着表观气速的增大而增大，同时径向速度梯度也随之增大。塔壁附近出现返混区，零轴向速度发生在相对半径ｒ／Ｒ＝０．７左右。气液逆流时，在气泡诱导下，壁面附近液体流速与主流区方向相反，出现向上的速度。本研究为鼓泡塔放大设计和数值模拟提供了可靠的参考数据。
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| 关 键 词： | 鼓泡塔 气液两相流 实验 速度分布 |
Velocity Distribution in Gas-Liguid Bubbble Column |
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| Wang Shuli.Velocity Distribution in Gas-Liguid Bubbble Column[J].Journal of Liaoning University of Petroleum & Chemical Technology,1997(3). |
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| Authors: | Wang Shuli |
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| Abstract: | In bubbly air/water two-phase up and down flows of the water in a bubble column. The liquid velocity was measured in detail using a laser doppuler velocineter. For air/water up flow, was found that the bubbles tended to migrate twoard the center of the column. The profiles of fluid velocities and gas velocities in axialwere obtained. Measurements of liquid velocities in bubble columns of different height and different superficale were obtained and discussed. |
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| Keywords: | Bubble column Gas/liquid two-phase flow Experiment Velocity distribution |
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