(623h) Brownian Dynamic Simulation of the Motion of a Janus Particle Near a Boundary and Under Shear Flow | AIChE

(623h) Brownian Dynamic Simulation of the Motion of a Janus Particle Near a Boundary and Under Shear Flow

Authors 

Jalilvand, Z. - Presenter, The City College of New York, The City University of New York
Kretzschmar, I., City College of New York
Koplik, J., Levich Institute, City College of New York

Zohreh Jalilvand Zohreh Jalilvand 1 0 2019-04-12T22:41:00Z 2019-04-12T22:42:00Z 1 251 1437 The City College of New York 11 3 1685 14.0

Clean Clean false false false EN-US JA X-NONE


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text-align:justify;text-justify:inter-ideograph"> mso-bidi-font-family:" times new roman>Brownian Dynamic
Simulation of the Motion of a Janus Particle Near
" times new roman>  mso-bidi-font-family:" times new roman>a " times new roman>  mso-bidi-font-family:" times new roman>Boundary and Under Shear
Flow

text-align:justify;text-justify:inter-ideograph"> mso-bidi-font-family:" times new roman> 

text-align:justify;text-justify:inter-ideograph"> " times new roman>Zohreh Jalilvand " times new roman>1 " times new roman>, Joel Koplik " times new roman>2 " times new roman> and Ilona Kretzschmar " times new roman>1 " times new roman>. mso-bidi-font-family:" times new roman>

text-align:justify;text-justify:inter-ideograph"> mso-bidi-font-family:" times new roman>1 mso-bidi-font-family:" times new roman>Department of Chemical
Engineering, City College of the City University of New York.

text-align:justify;text-justify:inter-ideograph"> mso-bidi-font-family:" times new roman>2 mso-bidi-font-family:" times new roman>Benjamin Levich institute City College of the City University
of New York. " times new roman>

inter-ideograph;line-height:16.2pt"> 

text-align:justify;text-justify:inter-ideograph;line-height:16.2pt"> mso-bidi-font-family:" times new roman>   Colloidal
particles dispersed in solutions play " times new roman>  mso-bidi-font-family:" times new roman>an " times new roman>  mso-bidi-font-family:" times new roman>important role in
many technological applications such as pharmaceuticals,
cosmetics, colloidal self-assembly and material design. Therefore, to
better understand the behavior of such systems knowing the
interaction between the particles and the boundaries is essential.

text-align:justify;text-justify:inter-ideograph;line-height:16.2pt"> mso-bidi-font-family:" times new roman>In this context, Janus
Particles with anisotropic surface properties possess biased interactions
including particle-particle interaction as well as interaction with the
boundaries due to dynamic orientation of the particle. Motivated " times new roman>  mso-bidi-font-family:" times new roman>by " times new roman>  mso-bidi-font-family:" times new roman>the potential
application, we aim to study the motion of Janus particles " times new roman>  mso-bidi-font-family:" times new roman>under different
conditions such as near a boundary including potential
interactions with  mso-bidi-font-family:" times new roman>a particle close by
and under shear flow. mso-bidi-font-family:" times new roman>

text-align:justify;text-justify:inter-ideograph;line-height:16.2pt"> 

text-align:justify;text-justify:inter-ideograph;line-height:16.2pt"> mso-bidi-font-family:" times new roman>  We " times new roman>  mso-bidi-font-family:" times new roman>have implemented " times new roman>  mso-bidi-font-family:" times new roman>a Brownian dynamic
simulation to study the motion of a Janus particle near a wall and under
different shear flow conditions  mso-bidi-font-family:" times new roman>while
further investigation  mso-bidi-font-family:" times new roman>will " times new roman>  mso-bidi-font-family:" times new roman>focus
on particle-particle interactions. The stochastic motion of a Janus
particle impacted by surface forces is described " times new roman>  mso-bidi-font-family:" times new roman>using the " times new roman>  mso-bidi-font-family:" times new roman>Langevin mso-bidi-font-family:" times new roman> equation. " times new roman>  mso-bidi-font-family:" times new roman>An adapted " times new roman>  mso-bidi-font-family:" times new roman>Kern-Frankel model is
employed to take into account the orientation of the particle. We observe
that 14.0pt;mso-bidi-font-family:" times new roman>  mso-bidi-font-family:" times new roman>interactions arising
through surface potentials depend on the separation distance between the
particle and the surface and the properties of the surfaces.