The role of carrier gas in cluster formation in methane supersonic jets

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференции

Аннотация

The influence of a monatomic carrier gas on cluster formation in supersonic methane jets is studied. The formation of methane clusters in a mixture with condensed argon and non-condensable helium with the same gas-dynamic parameters is then compared. It is shown that the methane clusters' formation intensity is extremely low both within a jet of pure methane, and in a mixture with carrier argon. The methane condensation process dependence on the properties of a carrier gas and the methane volume fraction in the mixture at the selected gas dynamic parameters of the flow is demonstrated. The effect of dissociative methane ionization and the fragmentation of methane clusters in the mass spectrometer detector on the recorded mass spectrum is established. The cluster methane ions protonation and the increase in their fraction with increasing clusters are recorded. Finally, magic numbers for methane clusters are found.

Язык оригиналаанглийский
Номер статьи012112
Число страниц5
ЖурналJournal of Physics: Conference Series
Том1105
Номер выпуска1
DOI
СостояниеОпубликовано - 28 ноя 2018
Событие34th Siberian Thermophysical Seminar Dedicated to the 85th Anniversary of Academician A. K. Rebrov, STS 2018 - Novosibirsk, Российская Федерация
Продолжительность: 27 авг 201830 авг 2018

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