An Effective Design of Micro Tesla Valve as a Passive Mixer in Microfluidics Channels
2022-26-1178
05/26/2022
- Event
- Content
- Mixing fluids is one of the major challenges in microfluidics. Normally, the mixing process is done by diffusion rather than turbulence, which makes it very slow due to low Reynolds number (Re) flow in the range of 0.1 to1. Owing to this behaviour, ineffective mixing occurs when two miscible liquids are mixed purely by diffusion which requires longer striation lengths and therefore longer microfluidic channels along with lengthy mixing time. Homogeneous mixing of solute and solvent is important for providing consistent chemical and biological reactions in µTAS.In this study, we develop a passive mixer that provides efficient mixing using micro tesla valves which allows the flow of liquids in the forward and reverse directions to analyse the formed vortices, turbulent intense areas, Reynolds number, and pressure using Ansys fluent workbench. An optimum design has been arrived by varying the number of cells from 1 to 5 in series and realization is done by excimer laser micromachining.
- Citation
- Singh, D., and Sankar PhD, R., "An Effective Design of Micro Tesla Valve as a Passive Mixer in Microfluidics Channels ," SAE Technical Paper 2022-26-1178, 2022, .