Numerical study of explosion of "propylene-air" mixture cloud in recessed cavity located near complex of bluff bodies

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Valger, S.A.^1,2 ; Fomin, P.A.^1,3,4 ; Fedorova, N.N.^1,2

Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Institutskaya 4/1, Novosibirsk

630090, Russia^1

Novosibirsk State University of Architecture and Civil Engineering, Leningradskaya 113, Novosibirsk

630008, Russia^2

Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentyev av. 15, Novosibirsk

630090, Russia^3

Siberian State University of Geosystems and Technologies, Plakhotnogo str. 10, Novosibirsk

630108, Russia^4

关键词: Chemical process;    Computational technology;    Explosion hazards;    Impact on the environment;    Industrial production;    Reactive gas mixtures;    Simplified mathematical model;    User Defined Functions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012031/pdf
DOI  :  10.1088/1757-899X/456/1/012031

来源: IOP

【 摘 要 】

The paper deals with mathematical modelling of the process of an explosion of a cloud of reactive gases and its impact on the environment. The research may be relevant to ensure fire safety and to prevent explosion hazards at industrial production facilities that use reactive gas mixtures as a working medium and at high-pressure industrial pipelines used for their transportation. The goal of the study is to develop a computational technology for numerical modelling of shock waves propagation and to predict loads on civil structures. To describe the chemical processes in the explosion, a simplified mathematical model is proposed which based on the assumption of the infinite speed of chemical reactions. Using the model, a set of User Defined Functions is implemented in ANSYS Fluent and applied to solve a problem of a "propylene-air" cloud explosion inside the cavity located in the vicinity of two standalone buildings.