microfluidic devices – TechConnect Briefs

Design of Optimized Microfluidic Devices for Viscoelastic Fluid Flow

Alves M.A., Universidade do Porto - Faculdade de Engenharia, PT

In this work we present a fully automated procedure for the design of microfluidic devices with optimal performance. The proposed approach combines an in-house finite-volume viscoelastic flow solver, an optimizer, and an automatic mesh generation [...]

Ultrasound-driven viscous streaming, modelled via momentum injection

Packer J., Attinger D., Ventikos Y., University of Oxford, UK

Mixing, particle transport, and lysis of biological cells can be performed in microfluidic chips by actuators based on the controlled motion of a gas-liquid interface. There is strong motivation to develop practical and tractable computational [...]

Efficiency Improvements in Fast Stokes Solvers

De S., Wang X., White J.K., Massachusetts Institute of Technology, US

In this paper we present several techniques to improve the efficiency and accuracy of the precorrected FFT accelerated Fast Stokes solver based on a boundary element discretization of the integral form of the incompressible Stokes [...]

A Fast Stokes Solver for Generalized Flow Problems

Ye W., Wang X., White J.K., Massachusetts Institute of Technology, US

Computing drag forces on geometrically complicated 3-D micromachined structures, such asan entire comb resonator, is a challenging problem. The recently developed FastStokes solver, based on precorrected-FFT accelerated iterative methods, has made analyzing such problems much [...]

A Fast 3D Solver for Unsteady Stokes Flow with Applications to Micro-Electro-Mechanical Systems

Ye W., Kanapka J., White J.K., Massachusetts Institute of Technology, US

In this paper we describe the extensions made to FastStokes, a precorrected-FFT accelerated stady Stokes solver, to solve the unsteady Stokes equation. We demonstrate the accuracy of the numerical approach by comparing computed results to [...]

A Fast Integral Equation Technique for Analysis of Microflow Sensors Based on Drag Force Calculations

Aluru N.R., White J.K., Massachusetts Institute of Technology, US

It is well known that MEMS based microfluidic devices operate in very low Reynolds number regime (Re < 1). Analysis and design of such microfluidic devices requires the solution of incompressible viscous fluid flow or [...]