TITLE

Molecular simulation of ion-induced nucleation in water vapor

AUTHOR(S)
Matsumoto, Mitsuhiro; Ohguchi, Koji; Yasuoka, Kenji
PUB. DATE
August 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 534 Issue 1, p151
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Molecular dynamics simulation is carried out to investigate ion-induced nucleation in water vapor. Comparison is made between ions with similar size and opposite electric charge, a potassium ion and a chloride ion. At large supersaturation ratios, no qualitative difference is discernible in clustering dynamics. At a small supersaturation ratio, clustering around the cation stops at a size ∼12, while clustering around the anion continues. The molecular structure of ion clusters explains the difference.
ACCESSION #
5669808

 

Related Articles

  • Simulating Marine New Particle Formation and Growth Using the M7 Modal Aerosol Dynamics Modal. Monahan, Ciaran; Vuollekoski, Henri; Kulmala, Markku; O'Dowd, Colin // Advances in Meteorology;2010, Vol. 2010, p1 

    A modal atmospheric aerosol model (M7) is evaluated in terms of predicting marine new particle formation and growth. Simulations were carried out for three different nucleation schemes involving (1) kinetic self-nucleation of OIO (2) nucleation via OIO activation by H2SO4 and (3) nucleation via...

  • Nucleation of water vapor in methane at high pressure. Peeters, P.; van Dongen, M. E. H. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p67 

    Preliminary experimental results of nucleation of water vapor in methane at high pressure are presented. The results are obtained by applying the nucleation pulse method, using a modified shock tube. The nucleation conditions were taken at two different temperatures (250 K and 240 K) and three...

  • Growth of homogeneously nucleated water droplets: A quantitative comparison of experiment and theory. Fladerer, Alexander; Strey, Reinhard // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p495 

    A nucleation pulse chamber was used to homogeneously nucleate water droplets the growth of which was examined under precisely controlled conditions. Quantitative agreement between the measured experimental data and growth calculations according to the theoretical framework by Fuchs and Sutugin...

  • Nucleation pulse measurements for water vapor at elevated temperatures. Hruby´, J.; Hosˇek, J.; Blaha, J.; Marsˇı´k, F. // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p237 

    At elevated temperatures, droplet growth becomes very fast. We present a new method to generate a nucleation pulse using a shock tube. This method is particularly suitable for nucleation and growth studies at high-temperature conditions, because the falling edge of the nucleation pulse is very...

  • Use of a turbulent mixing CNC to study the influence of composition and vapor properties on heterogenous nucleation. Hopke, Philip K.; Lee, D. W.; Mavliev, Rashid; Wang, Hwa-Chi // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p139 

    A new method for changing the supersaturation in the Turbulent Mixing CNC has been developed and used to study the influence of composition and vapor properties on heterogeneous nucleation. Supersaturation was controlled by changing the condensing vapor pressure in nozzle flow by saturating only...

  • Molecular simulation of seed-induced nucleation in vapor phase. Ohguchi, Koji; Yasuoka, Kenji; Matsumoto, Mitsuhiro // AIP Conference Proceedings;2000, Vol. 534 Issue 1, p123 

    Molecular dynamics (MD) simulations were executed to investigate the molecular mechanism of nucleation around a seed in Lennard-Jones vapor. It was found that the seed-induced nucleation takes place at a supersaturation ratio that is too low to cause homogeneous nucleation. At low...

  • Testing the influence of western Pacific subtropical high... Zhong Zhong; Xiaoting Wang; Jinzhong Min // Theoretical & Applied Climatology;2010, Vol. 100 Issue 1/2, p67 

    In this paper, two seasonal scale simulations were conducted for the abnormal climate event in China in the summer of 1998 using a regional climate model (RegCM3). One is the control run, the other is nudging run, which was performed for zonal and meridional wind components, temperature, and...

  • A feasibility study for the retrieval of the total column precipitable water vapor from satellite observations in the blue spectral range. Wagner, T.; Beirle, S.; Sihler, H.; Mies, K. // Atmospheric Measurement Techniques Discussions;2013, Vol. 6 Issue 2, p3643 

    We present a new algorithm for satellite retrievals of the atmospheric water vapor column in the blue spectral range. The water vapor absorption cross section in the blue spectral range is much weaker than in the red spectral range. Thus the detection limit and the uncertainty of individual...

  • PHOCUS radiometer. Nyström, O.; Murtagh, D.; Belitsky, V. // Atmospheric Measurement Techniques Discussions;2012, Vol. 5 Issue 1, p271 

    The article presents a study which explores the water vapour concentration distribution through the SondRad instrument in the Particles, Hydrogen and Oxygen Chemistry (PHOCUS) payload. The study describes the impact of simulations through finite element method (FEM) modelling on the performance...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics