https://doi.org/10.1051/epjconf/202532101006
Experimental analysis of fluid dynamics in microchannels featuring two-scale fin pin arrays
Ufa University of Science and Technology, Ufa, Russia
* Corresponding author: olgasolnyshkina@gmail.com
Published online: 10 March 2025
Optimizing the geometry of internal microchannel structures is critical to the design of efficient microfluidic devices. This study addresses the pressing issue of understanding how the distribution of circular cross-section pins within microchannels affects integral hydrodynamic performance. We employ a comprehensive experimental methodology combining high-speed imaging, optical microscopy, and microfluidic platform fabrication using polydimethylsiloxane based on the lab-on-a-chip technology. A series of experiments were conducted under varying pressure drops to assess the throughput of microchannel structures with different fin pin configurations. Results demonstrate a significant reduction in microchannel throughput upon the introduction of a secondary porosity scale.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
