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CSME 2022/02
Volume 43 No.1
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57-62
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An Optimal Inlet Flow Angle Design of Vascular-type Micromixer
Chin- Tsan Wanga, Tzu-Hsuan Lanb, Wen-Tong Chongc, Hwai-Chyuan Ongc and Shi-Xun Chena
aDepartment of Mechanical and Electro-Mechanical Engineering, National I Lan University, I-Lan, Taiwan.
bDepartment of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei, Taiwan.
cDepartment of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.
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Abstract:
Micromixers are important modules in medical applications. Novel and excellent biometric micromixers have been designed with an effective mechanism of flow splitting and recombining (SAR). The aim of this study is to modify the prototype of a biometric micromixer by designing the inlet flow channel and generating a better flow geometry in the blood vessel-micromixer. The blood vessel-micromixer was also investigated with different inlet channel angles and various Reynolds number ratios (ReI2 and Rer) for the estimation of their influence on the mixing performance of the micro-mixer. The ReI2 is the inlet 2 and the Rer is the combination of side flow and middle flow effects during the different flow conditions. Results showed that the blood vessel-micromixer with an inlet channel angle of 30° (Ø =30°) can be optimized for future research works. In addition, optimal performance with a Amixing index of 0.88 would be achieved at a condition of ReI2= 1 and Rer= 0.7. These findings will be definitely useful for the improvement of micromixer applications in the future.
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Keywords: Blood-vessel micromixers, mixing index, pressure drop, Numerical Simulation, flow splitting and recombining (SAR)
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*Corresponding author; e-mail:
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©
2022
CSME , ISSN 0257-9731
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