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微通道气液同向流动中气泡射流特性
  • 期刊名称：工程热物理学报，2008，29(2)：309-312
  • 时间：0
  • 分类：TK124[动力工程及工程热物理—工程热物理;动力工程及工程热物理—热能工程]
  • 作者机构：[1]上海交通大学机械与动力工程学院,上海200240
  • 相关基金：国家自然科学基金资助项目（No.50536010）;上海市科技委员会资助项目（No.05JC14025）
  • 相关项目：微/纳尺度条件下的流体流动与传热传质研究
关键词： 微通道, 气泡射流, 频率, microchannels, bubble injection, frequency
中文摘要：

利用高速CCD成像技术，本文研究了梯形横截面微通道内的气泡喷射流动。通过调节同向流动时空气和水流量，研究了气泡形成的大小和频率等变化特性；以及微通道内的流型变化。实验结果表明，气泡喷射频率随空气流量的增加而增大，同时随水流量的增加而上升，且上升幅度渐趋平缓。

英文摘要：

Using high speed CCD imaging system, bubble injection flow is investigate in trapezoid microchannels. By regulating mass flux of air and water during co-flowing, we investigated some characteristics, such as the size and frequency of bubble formation, and also variations of flow patterns in microchannels. Results indicate that frequency of bubble injection increases with mass flux of both air and water, but the rise of frequency flattens gradually with mass flux of water under same mass flux of air.

同期刊论文项目
微/纳尺度条件下的流体流动与传热传质研究
期刊论文 46 会议论文 19
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