Deepwater gas concentration feature extraction based on fluid mechanics

Abstract

In order to solve the complex production process, high technical content, bad working environment, frequent blowout accidents, and other problems. A method based on the concentration distribution characteristics of explosion flue gas emission in deepwater area is proposed. Based on the computational fluid dynamics theory, the basic governing equations of blowout and explosion of natural gas in deepwater are obtained. Based on the basic governing equations of deepwater natural gas blowout and explosion, the diffusion of natural gas in deepwater natural gas blowout and explosion is studied by using the K-turbulence model. The diffusion process of gas explosion in deepwater is obtained. Two Gaussian smoke model parameters, atmospheric diffusion parameter and average wind speed, were realized by combining the segmenting smoke flow with Gaussian smoke mass concentration distribution. The blowout and explosion process of natural gas in deepwater is simulated by MATLAB software, and the distribution characteristics of flue gas concentration are analyzed. The results showed that the smoke concentration and the change of smoke concentration were not affected by the change.