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자료유형
학술저널
저자정보
저널정보
한국생산제조학회 한국생산제조학회지 한국공작기계학회 논문집 Vol.16 No.6
발행연도
2007.12
수록면
146 - 152 (7page)

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An active micro-mixer, which was composed of an oscillating micro-stirrer in the microchannel to provide rapid, effective mixing at high flow, rates was analyzed. The effects of molecular diffusion and disturbance by the stirrer were considered with regard to two types of mixer models: the simple straight microchannel and microchannel with an oscillating stirrer. Two types of mixer models were studied by analyzing mixing behaviors such as their interactionafter the stirrer. The mixing was calculated by Lattice Boltzmann methods using the D2Q9 model. In this study, the time-averaged mixing index formula was used to estimate the mixing performance of time-dependent flow. The mixing indices of the two models compared. From the results, it was found that the mixer with an oscillating stirrer was much more enhanced and stabilized. Therefore, an optimum design for a dynamic micro-mixer with an oscillating stirrer was performed using Taguchi method in order to obtain a robust solution. The design parameters were established as the frequency, the length and the angle of the stirrer and the optimal values were determined to be 2, 0.8D and ±75°, respectively. It was found that the mixing index of the optimal design increased 80.72% compared with that of the original design.

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Abstract
1. 서론
2. 수치해석방법
3. 결과
4. 다구찌 실험계획법을 이용한 강건설계
5. 결론
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