Numerical modelling of non-equilibrium condensation of carbon dioxide (CO2) in a converging-diverging nozzle

Chuang Wen*, Xiaowei Zhu, Yan Yang, Hongbing Ding, Yuying Yan

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The condensing flow model is developed to predict the non-equilibrium condensation of CO2 in a converging-diverging nozzle using computational fluid dynamics modelling, which is expected to contribute to the carbon capture and storage. The numerical result shows that the nucleation process of CO2 occurs in the downstream of the nozzle throat where the extremely non-equilibrium state is reached, which generates the maximum value of the nucleation rate of approximately 2.5 x 1018 m−3 s−1. The excessive nucleation induces the growth of the condensed droplet and the liquid fraction increase in the diverging part of the supersonic nozzle with achieving 8% of the total mass at the nozzle exit.
Original languageEnglish
Article number420077
JournalAIP Conference Proceedings
Volume2293
Issue number1
Number of pages5
ISSN0094-243X
DOIs
Publication statusPublished - 2020
EventInternational Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2019) - Sheraton Hotel, Rhodos, Greece
Duration: 23 Sep 201928 Sep 2019

Conference

ConferenceInternational Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2019)
LocationSheraton Hotel
CountryGreece
CityRhodos
Period23/09/201928/09/2019

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