Numerical investigation the dynamics of vaporization at the flow of liquid methane in channel with variable section

8th All-Russian Conference on Low Temperature Plasma in the Processes of Functional Coating Preparation

Snigerev, B.A.^2 ; Tukmakov, A.L.^1 ; Tonkonog, V.G.^1

Kazan National Research Technical University of A. N. Tupolev-KAI, Russia^1

Institute of Mechanics and Engineering, Kazan Science Center, Russian Academy of Sciences, Russia^2

关键词: Additional equations;    Conservation of mass;    Evaporation and condensation;    Nonstationary process;    Nozzle throat;    Numerical investigations;    Transient dynamics;    Two-phase gas-liquid flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/789/1/012056/pdf
DOI  :  10.1088/1742-6596/789/1/012056

来源: IOP

【 摘 要 】

Numerically transient dynamics of vaporization of the liquid bubbling up methane flow in the Laval nozzle are analyzed. The equation conservation of mass, momentum and energy with averaging of Favre are used. For numerical modeling of cavitation the additional equation for transport the volume fraction of vapour with special source terms for evaporation and condensations is used. Non-stationary process of evaporation is analyzed in various checkpoints in diffuser portion of the nozzle are investigated. By the study of the unsteady dynamics of changes the characteristic hydrodynamic quantities of two-phase gas-liquid flow, the main jet stream pattern of destruction of the process of liquid methane at the expiration of the nozzle throat are identified.