A numerical model for Brownian particles fluctuating in incompressible fluids

Takuya Iwashita, Yasuya Nakayama, Ryoichi Yamamoto

研究成果: ジャーナルへの寄稿学術誌査読

49 被引用数 (Scopus)


We present a numerical method that consistently implements thermal fluctuations and hydrodynamic interactions to the motion of Brownian particles dispersed in incompressible host fluids. In this method, the thermal fluctuations are introduced as random forces acting on the Brownian particles. The hydrodynamic interactions are introduced by directly resolving the fluid motions with the particle motion as a boundary condition to be satisfied. The validity of the method has been examined carefully by comparing the present numerical results with the fluctuation-dissipation theorem whose analytical form is known for dispersions of a single spherical particle. Simulations are then performed for more complicated systems, such as a dispersion composed of many spherical particles and a single polymeric chain in a solvent.

ジャーナルjournal of the physical society of japan
出版ステータス出版済み - 7月 2008

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学一般


「A numerical model for Brownian particles fluctuating in incompressible fluids」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。