Electro (&magneto) hydro-dynamics 사례
- FLOW-3D models
- Electrophoresis
- Dielecrophoresis
- Conductive fluid model
- Electro-wetting
- Electro-osmosis
- Joules heating
Electrophoresis
- Electric charge / electrophoresis
- Particle sorting
Electro-wetting
- Integrates effects of electrophoresis and dielectrophoresis
- Induced charges manipulate fluid at micro/nano volumes
- Electrowetting on dielectric (EWOD).
Dielectrophoresis (DEP)
DEP는 particle/fluid의 dielectric 특성이 주변 매체의 dielectric 특성과 다를 때만 발생한다.
Inputs required:
- Dielectric constant of the fluid and or particles
- Dielectric constant of any components, that may influence the electric field
- Define electric potential on the components or on the mesh boundaries
- Permittivity of vacuum.
섬세한 경계를 가진 두 개의 유체, 표면 장력, electric potential, fluid electric charge, dielectrophoresis, newtonian viscosity
Electro osmosis
Micro-pump example
- Zeta potential
- Electric field defined by the electric potential on the components or on the mesh boundaries.
- Permittivity of vacuum
- Flow rate control through device
Inputs required:
- Zeta potential
- Electric field defined by the electric potential on the components or on the mesh boundaries.
- Permittivity of vacuum
- Flow rate control through device
Electro-thermal effects (Joules heating)
- 전류가 물질을 통해 흐를 때 그 저항성은 물질을 가열하게 하며, 이 효과를 joule heating이라고 한다.
- 온도 구배 설정 속도 필드 및 장치의 유체 순환
Magneto Hydrodynamics
- 자력에 의해 입자가 유선으로부터 이탈한다.
Xiaozheng Xue1, Ioannis H. Karampelas1, Chenxu Liu2 and Edward P.
Furlani1,2
1 Department of Chemical and Biological Engineering
2 Department of Electrical Engineering
SUNY at Buffalo
FLOW-3D Americas User Conference , Toronto, 2014
Magneto Hydrodynamics
- 자기 제어로 유체 혼합 사용
Use of magnetic field to align beads
John Wendelbo MEng, MSc.
Senior CFD Engineer, Flow Science
john.wendelbo@flow3d.com