摘要
为了强化层流混合,设计并数值模拟了带挡板的二维T型混合器.挡板安装在混合器混合通道的进口.研究结果表面,当两股撞击来流由于温度不同而引起的动量不相等时,会明显改变混合通道的流动结构.由微混合器的几何结构及运行条件引起的不对称流动及回流区结构对提高流体混合效果有益.
To improve mixing effectiveness under laminar conditions, a 2D T-type mixer with baffles at the inlet of confluent channel was proposed and numerically studied. It was found that the flow structure could be significant changed using unequal inlet momenta due to impinging jets small temperature difference. Asymmetric flow structure and big recirculation zone, which depended strongly on the operating conditions and geometric configurations, were conducive to improving fluid mixing effectiveness.
基金
国家自然科学基金(10372099)资助
关键词
数值模拟
挡板
混合效率
T型混合器
numerical simulation
baffle
mixing effectiveness
T-mixer
