...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Numerical study of active mixing over a dynamic flow field in a T-jets mixer-Induction of resonance
【24h】

Numerical study of active mixing over a dynamic flow field in a T-jets mixer-Induction of resonance

机译：混合在一个动态的数值研究活跃流场在T-jets mixer-Induction共振

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The flow field in a 2D T-jets mixer was simulated to study the effect of the pulsation/modulation of the jets flow rate on the dynamics of mixing. Different strategies, frequencies and amplitudes of the opposed jets flow rate modulation were tested. The modulation frequencies were set as multiples of the natural oscillation frequencies of the dynamics flow field. The natural flow frequencies are determined from the unforced flow, i.e., when the jets are not modulated. It is found that out phase modulation of the opposed jets, with frequencies close to the natural frequencies, cause resonance of the flow enhancing the order of the system, which results in a flow field with a well-defined repetitive generation of vortices. Conversely, when the pulsation frequencies were different from the natural frequencies the flow disorder was enhanced, i.e., the vortices evolution throughout the T jets mixers is less repetitive. The impact of the jets flow rate modulation on the flow field dynamics increases with the modulation amplitude up to the extreme case where it completely drives the dynamics of the system. A design equation for the most energy efficient pulsation of the jets feed streams in opposed jets mixers is proposed. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：2 d T-jets搅拌器的流场模拟研究脉动/调制的影响喷射流量的混合动力。不同的策略,频率和振幅反对喷射流量的调制测试。自然振荡频率的倍数的动态流场。从自然的频率决定流,也就是说,当飞机不是调制。发现了相位调制的反对飞机,频率接近自然流的共振频率,原因增强系统的顺序,这结果在流场定义良好的重复性代的漩涡。脉动频率是不同的固有频率流动障碍增强,即旋涡演化T喷射混合器是不重复的。喷射流量调制的流场动态增加调制振幅的极端的例子完全驱动的动力系统。为最节能的设计方程脉动喷射进料流的反对提出了射流混合器。化学工程师。保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号