Numerical Analysis of Behavior of High-Viscosity Electromagnetic Fluid Using a Coupled Method of Particle Method and FEM

作者：Yamamoto Takeshi^*; Matsuzawa Shuhei; Ogawa Shinnosuke; Ota Tomohiro; Hirata Katsuhiro

来源：IEEE Transactions on Magnetics, 2016, 52(3): 7206704.

DOI：10.1109/TMAG.2015.2497695

• Coupled method
• electromagnetic fluid
• finite-element model (FEM)
• implicit method
• moving particle semi-implicit (MPS)

Electromagnetic fluid, which is usually a suspension of extremely fine particles of metal in carrier fluid, shows unique behaviors such as large deformation or a change of material properties in electromagnetic field. This paper deals with elongation and sharpening of electromagnetic fluid with extremely high viscosity in electrostatic field. This behavior is very difficult to calculate with the finite-element model (FEM) because it includes intensive deformation and a large change of interfacial surface of fluid. Therefore, we propose an improved 3-D coupled method of FEM and moving particle semi-implicit (MPS). Electrostatic field analysis with the FEM and fluid analysis with MPS is weakly coupled. This paper implicitly calculates viscous terms in Navier-Stokes equations and succeeds in accurately calculating deformation of high-viscosity electromagnetic fluid.

• 出版日期2016-3