Dynamics of a Bubble Column: Influence of Gas Distribution on Coherent Structures

Dynamics of a Bubble Column: Influence of Gas Distribution on Coherent Structures
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气泡柱动力学：气体分布对相干结构的影响

DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
H. V. D. Akker
H. V. D. Akker
中科院分区：
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文献类型：
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作者：
W. Harteveld;R. Mudde;H. V. D. Akker

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研究了鼓泡塔中气体分布方式对鼓泡塔动力学行为的影响。LDA和玻璃纤维探针测量在15 cm柱中进行，使用特殊分配器以良好控制的模式通气。研究了0.015 m/s至0.023 m/s的表观气体速度。均匀的充气使气体分布非常均匀。缺乏熟悉的大尺度环流和结构。非均匀气体注入在入口区域引入动态结构。大规模的结构是不存在的入口区域上方的流，独立的气体注入模式。
The influence of the pattern of gas distribution on the dynamics of a bubble column is studied. LDA and glass fiber probe measurements were performed in a 15 cm column, aerated in well-controlled patterns using a special distributor. Superficial gas velocities of 0.015 m/s to 0.023 m/s were investigated. Uniform aeration gives very uniform gas distribution. The familiar large-scale circulation and structures are absent. Non-uniform gas-injection introduces dynamic structures in the entrance region. Large-scale structures are absent in the flow above the entrance region, independent of the gas injection pattern.