1. Simulations of a polar molecule (sulfur dioxide) in a supersonic jet
- Author
-
Guanglong Chen, Jianping He, Xingjia Li, Dong Eon Kim, A. S. Boldarev, and Yunjiu Cao
- Subjects
Jet (fluid) ,Materials science ,Chemical polarity ,Air pollution ,General Physics and Astronomy ,02 engineering and technology ,021001 nanoscience & nanotechnology ,medicine.disease_cause ,01 natural sciences ,chemistry.chemical_compound ,chemistry ,Chemical physics ,0103 physical sciences ,medicine ,Cluster size ,Molecule ,Supersonic speed ,010306 general physics ,0210 nano-technology ,Cluster analysis ,Sulfur dioxide - Abstract
Clustering of polar molecules (SO2) in a supersonic jet was investigated by simulation. The cluster size Nc was calculated under different gas backing pressures P0 and source temperatures T0. Based on these results, the dependence of Nc on P0 or T0 was compared with that for the gases of non-polar molecules. It is found that SO2 molecules condense very easily into clusters even when P0 is very low. This result implies that large clusters can be produced using polar molecules, which could be useful in the studies of laser-cluster interactions. Also, SO2 gas is an important component of air pollution, so the knowledge of the clustering properties of SO2 could be helpful in the study of air pollution and environment.
- Published
- 2018