The role of activation energy and reduced viscosity on the enhancement of water flow through carbon nanotubes

2011 ◽  
Vol 134 (19) ◽  
pp. 194509 ◽  
Author(s):  
Jeetu S. Babu ◽  
Sarith P. Sathian
Keyword(s):  
Activation Energy ◽  
Carbon Nanotubes ◽  
Water Flow ◽  
Reduced Viscosity ◽  
Flow Through

Identifying the Mechanisms of Enhanced Water Flow Through Carbon Nanotubes

2008 ◽  
Author(s):  
J. A. Thomas ◽  
A. J. H. McGaughey
Keyword(s):  
Carbon Nanotubes ◽  
Water Flow ◽  
Flow Rate ◽  
Driving Force ◽  
Slip Length ◽  
Dynamics Simulation ◽  
Flow Area ◽  
Water Viscosity ◽  
Flow Through ◽  
External Driving

Pressure-driven water flow through carbon nanotubes (CNTs) with diameters ranging from 1.66 nm to 4.99 nm is examined using molecular dynamics simulation. The flow rate enhancement, defined as the ratio of the observed flow rate to that predicted from the no-slip Hagen-Poiseuille relation, is calculated for each CNT. The enhancement decreases with increasing CNT diameter and ranges from 433 to 47. By calculating the variation of water viscosity and slip length as a function of CNT diameter, it is found that the results can be fully explained in the context of continuum fluid mechanics. The enhancements are lower than previously reported experimental results, which range from 560 to 100000, suggesting a miscalculation of the available flow area and/or the presence of an uncontrolled external driving force (such as an electric field) in the experiments.

On the Origin of Water Flow through Carbon Nanotubes

ChemPhysChem ◽  
2015 ◽  
Vol 16 (16) ◽  
pp. 3488-3492 ◽  
Author(s):  
Jiaye Su ◽  
Keda Yang
Keyword(s):  
Carbon Nanotubes ◽  
Water Flow ◽  
Flow Through

Theory and simulations of water flow through carbon nanotubes: prospects and pitfalls

2011 ◽  
Vol 23 (18) ◽  
pp. 184110 ◽  
Author(s):  
Douwe Jan Bonthuis ◽  
Klaus F Rinne ◽  
Kerstin Falk ◽  
C Nadir Kaplan ◽  
Dominik Horinek ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Water Flow ◽  
Flow Through

Cavitation in an Extremely Limited Flow Through Very Small Orifices

1982 ◽  
Vol 104 (1) ◽  
pp. 94-98 ◽  
Author(s):  
R. Oba ◽  
T. Ikohagi ◽  
K. T. Kim
Keyword(s):  
Turbulent Flows ◽  
Water Flow ◽  
Cavitation Number ◽  
Orifice Diameter ◽  
Flow Through ◽  
Cavitation Nuclei ◽  
Technical Interest

In order to clarify the role of cavitation nuclei upon inception, the behavior of inception was carefully investigated in an extremely limited water flow through very small orifices less than 1.0 mm in diameter under a prescribed nuclei condition. The following facts of technical interest were determined: a) The desinent cavitation number (σd) decreased rapidly and exponentially with the orifice diameter d, up to one hundredth in magnitude; and b) the cavitation appearance in such limited flows was quite different from that in fully turbulent flows through larger orifices.

Water flow in carbon nanotubes: the role of tube chirality

2019 ◽  
Vol 21 (12) ◽  
pp. 6566-6573 ◽  
Author(s):  
Alan Sam ◽  
Vishnu Prasad K. ◽  
Sarith P. Sathian
Keyword(s):  
Carbon Nanotubes ◽  
Water Flow ◽  
Flow Rate ◽  
Different Types

Flow rate of water in CNTs of different types.

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