2018/08/31 by Zihan Tan, Mingcheng Yang, Marisol Ripoll · 21 citations
Engineering · Physics and Astronomy · #Anisotropy #Field-Flow Fractionation Techniques #Flow (mathematics) #Fluid dynamics and aerodynamics studies #Fluidics #Microfluidics #Nanofluid Flow and Heat Transfer #Obstacle #Temperature gradient #Transverse plane #Work (physics) #cond-mat.soft #physics.app-ph #physics.flu-dyn
paper · pdf · doi:10.1103/physrevapplied.11.054004
published in Physical Review Applied 11(5) (American Physical Society) · 12 pages, 14 figures
openalex publication_date 2019/05/02 · arxiv created 2019/05/05 · arxiv updated 2019/05/07 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
One of the most challenging goals of microfluidics is the design of devices that can efficiently and precisely guide the movement of fluid at the nano- and microscales. This work proposes channels with elongated tilted obstacles in between, which, under the effect of a transverse gradient in temperature or concentration, can generate net fluid motion along the channels. Simulations show that flow properties are determined not only by the applied gradient and obstacle orientation, but also by the obstacle's intrinsic surface characteristics. Applications would include fluidic mixers and alternators, also with the potential to harvest waste heat or chemical energy.