基于混沌分形理论的射流冲击-负压反应器中流场分区特征研究的启示

IF 1.8 4区 工程技术 Q3 Chemical Engineering
Yuxi Hu, Yingying Dong, Guangchao Jiang, Zonghan Li, Fachen Qiu
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引用次数: 0

摘要

射流冲击-负压反应器(JI-NPR)是一种连续高效的技术,旨在去除氨气而不会堵塞。先前的研究发现,在负压条件下撞击的多孔射流的运动变化在许多区域的分布更为明显。本研究将 CFD 数值模拟方法与 MATLAB 平台相结合,研究了不同位置的水相分布、速度、湍流强度、漩涡量等参数的分形特征。以分形维数为标准分析了这种多区域分布现象的混沌特征。研究表明,利用混沌分形理论对流体流动中的复杂特性进行定量评估,有助于确定理想的参数设置,从而提高去污效果。当射流速度设定为 3.45 m/s,负压保持在 20 400 Pa 时,反应器中可达到最佳脱氨效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An insight into the investigation of partition characteristics of flow fields based on chaos fractal theory in a jet impingement–negative‐pressure reactor
The jet impingement–negative‐pressure reactor (JI‐NPR) is a continuous and efficient technology designed to remove ammonia without clogging. Prior research has discovered that the changing movement of a porous jet impinging under negative‐pressure conditions is distinguished by a more pronounced distribution over many regions. This study utilizes the CFD numerical simulation method in conjunction with the MATLAB platform to investigate the fractal characteristics of water phase distribution, velocity, turbulence intensity, vortex amount, and other parameters at various locations. The fractal dimension is employed as a criterion to analyze the chaotic characteristics of this multi‐area distribution phenomenon. The study demonstrates that the effectiveness of deamination removal can be enhanced by quantitatively assessing the complex characteristics in the fluid flow using the chaotic fractal theory, which facilitates the identification of the ideal parameter settings. The optimal deamination effect can be achieved in the reactor when the jet velocity is set to 3.45 m/s and the negative pressure is maintained at 20 400 Pa.
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来源期刊
Asia-Pacific Journal of Chemical Engineering
Asia-Pacific Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
3.50
自引率
11.10%
发文量
111
审稿时长
2.8 months
期刊介绍: Asia-Pacific Journal of Chemical Engineering is aimed at capturing current developments and initiatives in chemical engineering related and specialised areas. Publishing six issues each year, the journal showcases innovative technological developments, providing an opportunity for technology transfer and collaboration. Asia-Pacific Journal of Chemical Engineering will focus particular attention on the key areas of: Process Application (separation, polymer, catalysis, nanotechnology, electrochemistry, nuclear technology); Energy and Environmental Technology (materials for energy storage and conversion, coal gasification, gas liquefaction, air pollution control, water treatment, waste utilization and management, nuclear waste remediation); and Biochemical Engineering (including targeted drug delivery applications).
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