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One-Step Approach to Fabricating Polydimethylsiloxane Microfluidic Channels of Different Geometric Sections by Sequential Wet Etching Processes
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Laminar flow used as "liquid etch mask" in wet chemical etching to generate glass microstructures with an improved

Xuan Mu1, Qionglin Liang, Ping Hu

  • 1School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, P. R. China.

Lab on a Chip
|July 2, 2009
PubMed

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Laminar Flow01:27

Laminar Flow

Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as: