## THERMAL SCIENCE

International Scientific Journal

### INDUCED-CHARGE ELECTROOSMOSIS AROUND CONDUCTING AND JANUS CYLINDER IN MICROCHIP

**ABSTRACT**

The induced-charge elecetroosmosis around conducting/Janus cylinder with arbitrary Debye thickness is studied numerically, when an direct current weak electric filed is suddenly applied in a confined microchannel. It’s found that there are four large circulations around the conducting cylinder, and the total flux in the microchannel is zero; there are two smaller circulations around the Janus cylinder, and they are compressed to wall. A bulk flux, which has a parabolic relation with the applied electric field, is also predicted.

**KEYWORDS**

PAPER SUBMITTED: 2012-08-01

PAPER REVISED: 2012-09-05

PAPER ACCEPTED: 2012-09-12

**THERMAL SCIENCE** YEAR

**2012**, VOLUME

**16**, ISSUE

**5**, PAGES [1502 - 1506]

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