Using Divergent Nozzle with Aerodynamic Lens to Focus Nanoparticles
ANSYS Fluent will be used to simulate Computational Fluid Dynamics (CFD) for an efficient lens and nozzle design which will be explained in this paper. We have designed and characterized an aerodynamic lens and a divergent nozzle for focusing flow that transmits sub 25 nm particles through the aerodynamic lens. The design of the lens and nozzle has been improved using CFD for particle trajectories. We obtained a case for calculating nanoparticles (25 nm) flowing through the aerodynamic lens and divergent nozzle. Nanoparticles are transported by air, which is pumped into the aerodynamic lens through the nozzle at 1 atmospheric pressure. We have also developed a computational methodology that can determine the exact focus characteristics of aerodynamic lens systems. Particle trajectories were traced using the Lagrange approach. The simulation shows the ability of the aerodynamic lens to focus on 25 nm particles after using a divergent nozzle.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2643999Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 422
 Tan, Zhongchao, Raheleh Givehchi, and Alena Saprykina. 2015. “Submicron Particle Sizing by Aerodynamic Dynamic Focusing and Electrical Charge Measurement.” Particuology 18: 105–11. https://doi.org/10.1016/j.partic.2014.01.002.
 López Castañón, L., J. R. Castillón Fantova, Á López Llerena, B. Cordero De Las Heras, G. Lumbreras Garcia, and M. Á Somoza Calvo. 2012. “Taller de Educación Para La Salud Sobre Prevención de Osteoporosis En Mujeres. Efectividad de Una Intervención Enfermera En Atención Primaria.” Nutricion Clinica y Dietetica Hospitalaria 32 (2): 75–85. https://doi.org/10.1080/02786829408959748.
 Liu, Peng, Paul J. Ziemann, David B. Kittelson, and Peter H. McMurry. 1995. “Generating Particle Beams of Controlled Dimensions and Divergence: I. Theory of Particle Motion in Aerodynamic Lenses and Nozzle Expansions.” Aerosol Science and Technology 22 (3): 293–313. https://doi.org/10.1080/02786829408959748.
 Liu, P. N. P. D. B. P. H., Rao, N. P., Kittelson, D. B., & McMurry, P. H. 1996. “Optimizing the Detection Efficiency of a Low Pressure, in-Situ Particle Monitor Using Aerodynamic Focusing Lenses.” In Annual Technical Meeting-Institute Of Environmental Sciences 42: 217–24.
 Chen, Daren. 2019. “Differential Mobility Particle Sizers for Nanoparticle Characterization” 5 (May 2014): 1–9. https://doi.org/10.1115/1.4028040.
 Knutson, E. O., and K. T. Whitby. 1975. “Aerosol Classification by Electric Mobility: Apparatus, Theory, and Applications.” Journal of Aerosol Science 6 (6): 443–51.
 Middha, P., & Wexler, A. S. (2003). Particle focusing characteristics of sonic jets. Aerosol Science & Technology, 37(11), 907-915.
 Tan, Z., Givehchi, R., & Saprykina, A. (2015). Submicron particle sizing by aerodynamic dynamic focusing and electrical charge measurement. Particuology, 18, 105-111.
 Lee, J. W., Yi, M. Y., & Lee, S. M. (2003). Inertial focusing of particles with an aerodynamic lens in the atmospheric pressure range. Journal of Aerosol Science, 34(2), 211-224.
 El-Sayed, A. F. (2016). A Review of Basic Laws for a Compressible Flow. In Fundamentals of Aircraft and Rocket Propulsion (pp. 91-160). Springer, London.