Go to the University of Michigan Web Page.Go to College of Engineering Web Page.Go Back to ChE Web Page.

Nobuhiko Watari

Contact Information
Email nobuhiko@umich.edu
Phone 734.936.1381
Office 3420 G. G. Brown, Dept. of Chemical Engineering University of Michigan, Ann Arbor, MI 48109
Education
M.S. Department of Computational Science and Engineering, Nagoya University, Japan
B.S. Department of Applied Physics, Nagoya University, Japan
Research Student, Department of Applied Physics, University of Tokyo, Japan

Current Research

After recent development of methods to fabricate fluidic devices at the micro/nano scale, these devices have been utilized for various applications from DNA separation to disease diagnosis. Although there are many experimental works on the micro/nano fluidic devices, it is not fully understood how polymer molecules behave on these length scales especially in channels of complex geometry. When the length scale of the channel geometry, or the scale of the change of fluid velocity gradient, is comparable to that of a polymer's molecule size, there will be significant coupling between hydrodynamics and the polymer's conformation. The goal of our research is to understand and predict the motion of a deformable object, such as a polymer molecule or a deformable cell, under an external field by means of computer
simulations and theory for practical applications.

 

A stretch history of a polymer molecule in a Taylor vortex flow [1].

Publications

[1] N. Watari, M. Doi, and R. G. Larson, Phys. Rev. E 78:011801, 2008 "Fluidic trapping of deformable polymers in microflows."

[2] N. Watari, M. Makino, N. Kikuchi, R.G. Larson, and M. Doi, J. Chem. Phys. 126:094902, 2007
"Simulation of DNA motion in a microchannel using stochastic rotation dynamics."