- 期刊
Effect of the Energy Barrier of DLVO Theory on the Deposition of Brownian Particles in Porous Media Using the Constricted Tube Model
並列摘要
The deposition problem of colloidal particles in porous media is investigated theoretically by using the Brownian dynamics simulation method. The pore structure was characterized by the constricted tube model, and the effects of the particle size and the total interaction energy curve of the DLVO theory of various shapes on the collection efficiencies of particles are examined. The simulation results show that: (1) a particle size with a minimum collection efficiency exists when the value of Reynolds number is small, and (2) the dimensionless groups, NE1, NE2, NDL, and NLO which characterize the height of the primary maximum and the depth of the secondary minimum in the total interaction energy curve play a major role in determining the collection efficiencies of Brownian particles with low Reynolds numbers. numbers. In addition, when comparing the present model with the available experimental data (Bai and tien, 1999), it is found that the simulation results obtained from the present model coincide more closely with the experimental data than that of the convective diffusion model in the unfavorable deposition region.
延伸閱讀
- Ferdows, M., Hamad, M. A. A., & Ali, M. (2015). Lie Group Analysis on Brownian Motion and Thermophoresis Effect on Free Convective Boundary-Layer Flow on a Vertical Cylinder Embedded in a Nanofluid-Saturated Porous Medium. Journal of Applied Mathematics, 2015(), 875-880-086. https://doi.org/10.1155/2015/741352
- 陳誌賢（2005）。The Effects of Surface Forces on Contact Characteristics and the Topographical Evaluation of Microparts in Considering of Particle and Liquid Film〔碩士論文，國立虎尾科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0028-1501201314421066
- Huang, J. S., Tsai, R. Y., & Huang, K. H. (2012). Numerical Study of Thermophoresis on Aerosol Particle Deposition from Hiemenz Flow through Porous Medium onto a Stretching Surface. Journal of Marine Science and Technology, 20(2), 163-172. https://doi.org/10.6119/JMST.201204_20(2).0007
- 胡庭瑜（2019）。Gravity Effect of Particles on the Pattern of Evaporation-driven Deposit from Particle Suspension Droplets on Substrates with Different Elasticities and Surface Roughnesses〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201900065
- 鄭文立（2010）。Boundary Effects on the Electrophoresis of a Porous Particle〔博士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2010.03553