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An improved CE/SE scheme and its application to dilute gas–particle flows

Authors :
Wang, Gang
Zhu, Huiyu
Sun, Quanhua
Zhang, Deliang
Liu, Kaixin
Source :
Computer Physics Communications. Aug2011, Vol. 182 Issue 8, p1589-1601. 13p.
Publication Year :
2011

Abstract

Abstract: An improved space–time Conservation Element and Solution Element (CE/SE) scheme is constructed by proposing a new structure of solution elements and conservation elements based on the rectangular mesh. Furthermore, the improved CE/SE scheme was applied to dilute gas–particle two-phase flows. A two-fluid model and two corresponding chemical reaction models, i.e., two-step reaction model and detailed chemical reaction model, were used to describe the physical and chemical characteristics in the two-phase flows. Shock wave reflection in gas, shock wave diffraction in air–sand mixture, explosive synthesis of TiO2 nanoparticle and air–fuel two-phase detonation were simulated by the improved CE/SE scheme and appropriate physical and chemical models. All the numerical results were compared and discussed carefully. The results show that the improved CE/SE scheme is clear in physical concept, easy to be implemented and high accurate for the above-mentioned problems. Thus, the improved CE/SE scheme can be applied to gas–particle flows widely. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
00104655
Volume :
182
Issue :
8
Database :
Academic Search Index
Journal :
Computer Physics Communications
Publication Type :
Periodical
Accession number :
60925895
Full Text :
https://doi.org/10.1016/j.cpc.2011.04.004