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Spiral microchannel particle separators, straight microchannel particle separators, and continuous particle separator and detector systems
Spiral microchannel particle separators, straight microchannel particle separators, and continuous particle separator and detector systems
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机译：螺旋式微通道颗粒分离器，直式微通道颗粒分离器，连续式颗粒分离器和检测器系统
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摘要
A spiral microchannel particle separator includes an inlet for receiving a solution containing particles, at least two outlets, and a microchannel arranged in a plurality of loops. Particles within a solution flowing through the spiral microchannel experience a lift force FL and a Dean drag force FD. The spiral radius of curvature R and the hydraulic diameter Dh of the spiral microchannel are such that for a flow rate U of the solution, the lift force FL and a Dean drag force FD are approximately equal and act in opposite directions for particles of a first size. The particles of the first size are focused in a single stream located at an equilibrium position near an inner wall of the microchannel. In another embodiment, a straight microchannel particle separator separates particles by modulating shear rates via high aspect ratios that focuses particles of a first size along two first walls.
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机译：螺旋式微通道颗粒分离器包括：入口，用于接收包含颗粒的溶液;至少两个出口;以及布置在多个回路中的微通道。流过螺旋微通道的溶液中的粒子会受到升力F L 和迪安阻力F D 。螺旋微通道的螺旋曲率半径R和水力直径D h 使得对于溶液的流速U，提升力F L 和Dean对于第一大小的粒子，拖曳力F D 大约相等，并且作用方向相反。第一尺寸的颗粒聚焦在位于微通道内壁附近的平衡位置处的单个流中。在另一个实施方案中，直的微通道颗粒分离器通过经由高纵横比调节剪切速率来分离颗粒，所述高纵横比使第一尺寸的颗粒沿两个第一壁聚焦。
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