Ni, Yu and Fan, JianRen and Hu, YaCai (2011) Numerical study of instability of nanofluids: the coagulation effect and sedimentation effect. Nanoscale Research Letters, 6 (1). pp. 1-7.
Official URL: http://www.nanoscalereslett.com/content/6/1/183
This study is a numerical study on the coagulation as well as the sedimentation effect of nanofluids using the Brownian dynamics method. Three cases are simulated, focusing on the effects of the sizes, volume fraction, and Î¶ potentials of nano-particles on the formation of coagulation and sedimentation of nanofluids. The rms fluctuation of the particle number concentration, as well as the flatness factor of it, is employed to study the formation and variation of the coagulation process. The results indicate a superposition of coagulation and sedimentation effect of small nano-particles. Moreover, it is stable of nanofluids with the volume fraction of particles below the limit of "resolution" of the fluids. In addition, the effect of Î¶ potentials is against the formation of coagulation and positive to the stability of nanofluids.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||16 Jul 2011 05:17|
|Last Modified:||16 Jul 2011 05:23|
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