2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/17/2017 | 3:00 PM - 3:25 PM | Molecular dynamics simulation of passive nanofluidic diode using non-uniform nanochannels | 2
Molecular dynamics simulation of passive nanofluidic diode using non-uniform nanochannels
Through molecular dynamics simulations, we numerically demonstrate a non-uniform nanochannel structure to work as a fluidic diode, which accepts water flows in the forward direction and blocks flows in the backward direction in a wide range of pressure drops. The unidirectional water flows are owing to the distinct activation pressures in different directions. In the forward (converging) direction, the activation pressure is small because of the relatively low capillary pressure and the water coalescence at the exit. In the backward direction, the activation pressure is high due to the high infiltration pressure. The pressure drop range for the fluidic diode can be varied by modifying the surface wettability, channel height, and/or the tilt angle of the channel. The fluidic diode can be used for flow control in integrated micro- and nanofluidic devices.
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Presenters/Authors
Jingwen Mo
(), Southeast University, jwmo@seu.edu.cn;
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