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Tian Y, Chen X, Zeng X, Wang X, Yu X, Ma Y, Wang Q. Detailed numerical simulation and experimental investigation on micromixers with serpentine Koch fractal microchannels. INTERNATIONAL JOURNAL OF MODERN PHYSICS B 2021; 35. [DOI: 10.1142/s0217979221502283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2025]
Abstract
Micromixer is a kind of microfluidic chip for fast mixing and analysis. Mixing in a micromixer is usually a micron scale. At low Reynolds number, the fluid in the channel is laminar flow, which mainly depends on molecular diffusion as the main mixing mode. Fluid mixing in microchannels is very difficult, especially when the viscosity of the fluid is high. In this paper, we design a novel passive micromixer. The effects of fractal number, Koch fractal channel spacing, microchannel depth and cross-section shape on mixing efficiency were studied. Through a large number of numerical simulations, we continue to optimize the structure of the micromixer and improve the mixing efficiency. Finally, through the continuous optimization of the structure of the micromixer, the mixing efficiency of the micromixer can reach more than 95%.
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Affiliation(s)
- Yue Tian
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
- Faculty of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou, Liaoning 121001, P. R. China
| | - Xueye Chen
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
| | - Xiangwei Zeng
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
| | - Xiangyang Wang
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
| | - Xingxing Yu
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
| | - Yongbiao Ma
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
| | - Qingdong Wang
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
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TIAN YUE, CHEN XUEYE. STUDY ON A RAPID MANUFACTURING OF DIAMOND MICROMIXER BY CO 2 LASER. SURFACE REVIEW AND LETTERS 2021; 28:2150050. [DOI: 10.1142/s0218625x21500505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2025]
Abstract
In this paper, the influence of the parameters of CO2 laser cutting system on the rhombus microchannel is studied. In the experiment, we changed the laser processing speed, laser processing power, and laser processing number of CO2 laser cutting system, and the depth and width of microchannel are studied by changing these three parameters. It is found that the depth and width of microchannel increase with the increase of laser processing number and laser processing power. For example, when the speed is 6[Formula: see text]mm/s and the number of laser processing is three times, the width of microchannel increases from 0.51[Formula: see text]mm to 0.64[Formula: see text]mm and the depth increases from 0.75[Formula: see text]mm to 1.60[Formula: see text]mm with the increase of power. However, the depth and width of the microchannel decrease with the increase of laser processing speed. For example, when the power is 8[Formula: see text]W and the number of laser processing is three times, the width of the microchannel decreases from 0.51[Formula: see text]mm to 0.39[Formula: see text]mm, and the depth of the microchannel decreases from 0.75[Formula: see text]mm to 0.34[Formula: see text]mm.
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Affiliation(s)
- YUE TIAN
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
- Faculty of Mechanical Engineering and Automation, Liaoning University of Technology, Jinzhou, Liaoning 121001, P. R. China
| | - XUEYE CHEN
- College of Transportation, Ludong University, Yantai, Shandong 264025, P. R. China
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Tian Y, Chen X. Micromixer structure design based on Koch fractal principle and baffle distribution on the lower surface. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING 2021; 43:177. [DOI: 10.1007/s40430-021-02905-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 02/18/2021] [Indexed: 01/12/2025]
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