Analysis and optimization of a micromixer with a modified Tesla structure

Shakhawat Hossain, Mubashshir A. Ansari, Afzal Husain, Kwang Yong Kim*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

89 اقتباسات (Scopus)

ملخص

A flow-analysis method using Navier-Stokes equations has been applied to a parametric study on a micromixer with a modified Tesla structure, and an optimization of this micromixer has been performed with a weighted-average surrogate model based on the PRESS-based-averaging method. The numerical solutions are validated with the available numerical and experimental results. The mixing performance and pressure-drop have been analyzed with two dimensionless parameters, i.e., the ratio of the diffuser gap to the channel width, θ, and the ratio of the curved gap to the channel width, φ{symbol}, for a range of Reynolds numbers from 0.05 to 40. The shape of the microchannel is optimized at the Reynolds number of 40 with two objectives: the mixing index at the exit and the friction factor. The "naïve approach" has been applied to realize a single-objective optimization problem. The optimization results reveal that the mixing and pressure-drop characteristics are very sensitive to the geometric parameters. Sensitivity analysis reveals that in the vicinity of the optimum point, the objective function is more sensitive to φ{symbol} as compared to θ.

اللغة الأصليةEnglish
الصفحات (من إلى)305-314
عدد الصفحات10
دوريةChemical Engineering Journal
مستوى الصوت158
رقم الإصدار2
المعرِّفات الرقمية للأشياء
حالة النشرPublished - أبريل 1 2010
منشور خارجيًانعم

ASJC Scopus subject areas

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