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میکروسیالات و نانوسیالات 2013
جزئیات رویداد
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همایش ، رویداد ، ژورنال
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  • control of secondary flow in concentrically traveling flow on centrifugal microfluidics

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1003
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     this paper reports a fundamental study of the stripe laminar flow pattern on a centrifugal microfluidic device with the goal of realizing a sedimentation-based, continuous mode particle separation technique. microfluidic channels were designed with a concentrically integrated microchannel, and the patterning of the flow in the channel was investigated. a significant secondary flow was observed as a preliminary result. we conclude that the origin of this secondary flow was not the dean force, because it was observed in a straight microchannel, but was not observed in curved channel during the spinning of the system at rest. the transition of the pattern was investigated using a simulation and experiment, and the flow pattern’s dependence on the rotational speed was determined, which suggested that the origin of the secondary flow was the coriolis force. the significance of the secondary flow was controlled by adjusting the rotational speed of the disk, and the flow rate and laminar flow patterns were controlled by the stripe flow pattern.

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