关于不同角度的入口通道对简单 T 型微搅拌器和涡旋 T 型微搅拌器在宽雷诺数范围内的搅拌性能影响的参数研究

IF 2.3 4区 工程技术 Q2 INSTRUMENTS & INSTRUMENTATION
Kamran Rasheed, Mubashshir Ahmad Ansari, Shahnwaz Alam, Mohammad Nawaz Khan, Mahmood Alam
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引用次数: 0

摘要

微搅拌器是用于在极小范围内混合流体样品的片上实验室(LOC)设备的核心部件。在雷诺数不大的情况下,流体在微通道内的运动是层状的,因此混合具有挑战性。为了解决这个问题,人们开发了许多用于增强微流体设备内部混合效果的微型搅拌器。目前的研究考察了两种不同型号的被动式微搅拌器(即简单 T 型微搅拌器 (STMM) 和涡旋 T 型微搅拌器 (VTMM))的性能,在其入口通道上采用了不同的角度配置(即 30°、60°、90°、120° 和 150°),以监测雷诺数在 10-150 范围内的混合一致性。通过对这些几何排列进行模拟,对混合程度、压力梯度和混合成本进行了评估。结果表明,混合效果取决于入口通道的角度布置。对于 STMM 而言,入口通道呈 120° 的布局最有效,而对于 VTMM 而言,入口通道呈 90° 的配置最有效。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Parametric study on the influence of varying angled inlet channels on mixing performance in simple T micromixers and vortex T micromixers across a wide range of Reynolds numbers

Parametric study on the influence of varying angled inlet channels on mixing performance in simple T micromixers and vortex T micromixers across a wide range of Reynolds numbers

Parametric study on the influence of varying angled inlet channels on mixing performance in simple T micromixers and vortex T micromixers across a wide range of Reynolds numbers

Micromixers become the core elements of lab-on-chip (LOC) devices used for mixing fluid samples at a very small scale. For modest Reynolds numbers, the nature of fluid movement is laminar across the microchannel hence mixing is challenging. Numerous designs of micromixers for mixing enhancement inside microfluidic devices have been developed to solve this issue. The current investigation looks at the performance of two distinct versions of passive micromixers i.e. simple T micromixer (STMM) and vortex T micromixer (VTMM), employing different angular configurations (i.e. 30°, 60°, 90°, 120° and 150°) on their inlet channel to monitor the consistency of blending for the Reynolds number in a range of 10–150. Numerical investigations were done by performing simulations on these geometrical arrangements to evaluate the level of mixing, pressure gradient and cost of mixing. The outcome indicates the performance of mixing is dependent on the angular arrangement of inlet channels. For STMM, the layout with inlet channels at 120° performs most effectively, whereas, for VTMM, the configuration with inlets at 90° performs best.

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来源期刊
Microfluidics and Nanofluidics
Microfluidics and Nanofluidics 工程技术-纳米科技
CiteScore
4.80
自引率
3.60%
发文量
97
审稿时长
2 months
期刊介绍: Microfluidics and Nanofluidics is an international peer-reviewed journal that aims to publish papers in all aspects of microfluidics, nanofluidics and lab-on-a-chip science and technology. The objectives of the journal are to (1) provide an overview of the current state of the research and development in microfluidics, nanofluidics and lab-on-a-chip devices, (2) improve the fundamental understanding of microfluidic and nanofluidic phenomena, and (3) discuss applications of microfluidics, nanofluidics and lab-on-a-chip devices. Topics covered in this journal include: 1.000 Fundamental principles of micro- and nanoscale phenomena like, flow, mass transport and reactions 3.000 Theoretical models and numerical simulation with experimental and/or analytical proof 4.000 Novel measurement & characterization technologies 5.000 Devices (actuators and sensors) 6.000 New unit-operations for dedicated microfluidic platforms 7.000 Lab-on-a-Chip applications 8.000 Microfabrication technologies and materials Please note, Microfluidics and Nanofluidics does not publish manuscripts studying pure microscale heat transfer since there are many journals that cover this field of research (Journal of Heat Transfer, Journal of Heat and Mass Transfer, Journal of Heat and Fluid Flow, etc.).
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