Vortex micro T-mixer with non-aligned inputs

Ansari, Mubashshir Ahmad; Kim, Kwang-Yong; Anwar, Khalid; Kim, Sun Min

doi:10.1016/j.cej.2011.11.113

Cited by 82 publications

(45 citation statements)

References 25 publications

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“…An experimental study on flow field in T-jets mixers for different geometrical variables using planar laser induced fluorescence was carried out by Sultan et al [17]. A novel design of micromixer that generates vortical flow in a rectangular microchannel with tangentially aligned input channels was introduce by Ansari et al [18]. They report that the vortex initially formed at the inlet of a rectangular microchannel increases the interfacial area of the fluid streams by stretching, and thus the mixing enhances.…”

Section: Introductionmentioning

confidence: 99%

Mixing Performance of a Serpentine Micromixer with Non-Aligned Inputs

Hossain

Kim

2015

Micromachines

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Abstract:In this study, a numerical investigation on mixing and flow structure in a serpentine microchannel with non-aligned input channels was performed. The non-aligned input channels generate a vortical flow, which is formed by incoming fluid streams through tangentially aligned channels. Mixing index was evaluated to measure the degree of mixing in the micromixer. Analyses of mixing and flow field were investigated for a Reynolds number range starting from 0.1 to 120. The vortical structure of the flow was analyzed to find its effect on the mixing performance. Mixing of two working fluids in the micromixer was evaluated by using three-dimensional Navier-Stokes equations. In order to compare the mixing performance between the serpentine micromixers with and without non-aligned inputs, the geometric parameters, such as cross-section areas of the input channels and main channel, height of the channel, axial length of the channel, and number of pitches, were kept constant. Pressure drops were also calculated with fixed axial length in both cases.

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Section: Introductionmentioning

confidence: 99%

Mixing Performance of a Serpentine Micromixer with Non-Aligned Inputs

Hossain

Kim

2015

Micromachines

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“…The main geometry is a T-mixer with nonaligned inputs with the same cross section with dimensions of 90 × 100 µm and the main channel with the dimension of 180 × 200 µm considering in the work of Ansari et al [11]. The difference in the problem geometry between the present work and the study of Ansari et al [11] refers to the lamination in the mixer inputs. Therefore, a separator plat is placed once horizontally and once vertically in the mixer inputs indicated in the Fig.…”

Section: List Of Symbols Cmentioning

confidence: 81%

“…This work studies numerically the effect of lamination at the micromixer inputs in the study of Ansari et al [11]. The dimensions of micromixer have been considered as in [11].…”

Section: Resultsmentioning

confidence: 99%

“…The numerical scheme has been validated with the experimental model of Ansari et al [11]. Figure 5 presents Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The results demonstrated that the performance of two dimensional mixer is more than 20 % and that of three dimensional mixer is more than 82.5 % compared to the performance of the T-mixer without obstacles. Ansari et al [11] considered experimentally a new design of micro mixer that is a vortex T-mixer with nonaligned inputs and compared its performance with a simple T-mixer with aligned inputs. The Reynolds number of 10, 20, 40, 50 and 70 were used.…”

Section: List Of Symbols Cmentioning

confidence: 99%

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