Brownian movement and thermophoresis of nanoparticles in liquids

摘要: Abstract Thermophoresis is the realization of averaged Brownian motion particles in a fluid, which subject to steady temperature gradient. At sufficiently long times, stronger molecular impulses hotter fluid region drive towards colder region, where are weaker. The effect on described by stochastic force. When this force applied an ensemble thermophoretic velocity average ensemble. In study 4000 spherical nanoparticles with material properties CNT, aluminum, aluminum oxide, copper and gold was simulated four base liquids–water, ethyl glycol, engine oil R134a. ensemble-averaged results generate these liquids. It observed that computational agree very well few experimental data available for method general may be all heterogeneous systems numerical yield useful information process thermophoresis liquids as values coefficients nanofluids.