【摘 要】
：
A small sphere in a shear flow experiences a lift force perpendicular to the flow direction due to the velocity gradient.The lift force is of great importance on various areas, including aerosol scien
【机 构】
：
Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education,College of E
【出 处】
：
2016年大连国际微纳流体和微流控芯片大会(2016 International Conference of Micro
论文部分内容阅读
A small sphere in a shear flow experiences a lift force perpendicular to the flow direction due to the velocity gradient.The lift force is of great importance on various areas, including aerosol science, chemical engineering and environment science.In previous studies (Liu et al., Phys.Fluids, vol.20, 2008.107102), the lift force is calculated based on the assumption that the interaction between the gas molecule and the particle is rigid-body collision, and it is reported that the lift force directs from the high velocity region to the low velocity region.For micro-sized particles, this is physically meaningful and the results are consistent with experiments.However, as the particle size decreases to nano-scale, the model of rigid-body collision becomes inaccurate in that the influence of van der Waals forces between the gas molecules and particle cannot be ignored for nanoparticles.
其他文献
This paper reports a novel and simple method of improving the detection sensitivity of a microfluidic Resistive Pulse Sensor (RPS).A novel electrokinetic flow focusing method, which can only allow the
Pesticide residues are known or predicted to be toxic to human and animals.The detection of sub-ppm to ppb levels of pesticides in a complex sample matrix is needed.In many countries and districts, es
This work proposes a novel magnetic nanoparticle suspension within viscoelastic fluid base,and demonstrates its application for particle manipulation in Microfluidics.The prepared novel fluid not only
Field-modulated electroosmotic flows (fmEOF) in microchannels can be obtained by applying modulating electric fields in a direction perpendicular to a channel wall.A group of discrete electrodes are a
The interaction of dielectrophoretic (DEP) particles in an electric field has been observed in experiments, known as "pearl chains phenomenon".This phenomenon is the basis of DEP assembly technique, w
Biofouling is a major problem encountered in membrane processes for water and wastewater treatment.In membrane biofouling studies, quantification of biofouling is often conducted destructively and hen
Cell deformation generates perturbation and distortion to the aqueous environment in its vicinity, which may affect cell chemotaxis and migation.The effect of cell deformation on its chemical microenv
The complement fixation test (CFT) is a serological test that can be used to detect the presence of either specific antibody or antigen to diagnose infections, particularly with microbes that are not
This study presents a study of the lenless CMOS (Complementary Metal-Oxide-Semiconductor) sensor integrating a NI LabVIEW image processing program for particles recognition and size analysis The micro
We propose an all fiber apparatus based on a variable ratio fiber coupler which can transport micro particles controllably and trap particles one by one along a microfiber.The microfiber used in exper