scholarly journals Numerical Simulation of Natural Gas Release and Risk Zone Forecast in Urban Areas

2014 ◽  
Vol 71 ◽  
pp. 470-475 ◽  
Author(s):  
Qian-xi Zhang ◽  
Shan-jun Mo ◽  
Dong Liang
Keyword(s):  
Numerical Simulation ◽  
Natural Gas ◽  
Urban Areas ◽  
Gas Release ◽  
Risk Zone

The mitigation performance of ventilation on the accident consequences of H2S-containing natural gas release

2021 ◽  
Author(s):  
Dongdong Yang ◽  
Guoming Chen ◽  
Jianmin Fu ◽  
Yuan Zhu ◽  
Ziliang Dai ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Release

scholarly journals 3D pore-type digital rock modeling of natural gas hydrate for permafrost and numerical simulation of electrical properties

2018 ◽  
Vol 15 (1) ◽  
pp. 275-285 ◽  
Author(s):  
Huaimin Dong ◽  
Jianmeng Sun ◽  
Zhenzhou Lin ◽  
Hui Fang ◽  
Yafen Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Electrical Properties ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Natural Gas Hydrate ◽  
Digital Rock

scholarly journals Numerical Simulation of Tsunami Inundation in Urban Areas

2006 ◽  
Vol 1 (1) ◽  
pp. 148-156 ◽  
Author(s):  
Tetsuya Hiraishi ◽  
◽  
Tomohiro Yasuda ◽  
Keyword(s):  
Numerical Simulation ◽  
Numerical Model ◽  
Simulation Model ◽  
Urban Areas ◽  
Tokyo Bay ◽  
Tsunami Inundation ◽  
Model City ◽  
Inundation Depth ◽  
The Pacific ◽  
Potential Damage

The population and property in urban areas facing waterfronts is rapidly increasing together with the probability that a huge tsunami will occur on the Pacific Rim. The huge potential damage reflects the need to develop a highly accurate simulation model for tsunami inundation to help mitigate tsunami effects. We developed a simulation model to estimate the inundation depth and speed of tsunamis in urban areas. The model was applied to calculate the vari- ation of inundation areas in a model city facing Tokyo Bay. Experiments of tsunami inundation in the model city on a 1/50 scale was carried out for validation of the numerical model.

scholarly journals Numerical Simulation of Turbine Expander in Natural Gas Pressure Energy Power Generation System

2021 ◽  
Vol 2005 (1) ◽  
pp. 012142
Author(s):  
Zhan Zhixing ◽  
Mao Yanqin ◽  
Wang Xiaoyue ◽  
Li Chaojie ◽  
Cai Liang
Keyword(s):  
Numerical Simulation ◽  
Power Generation ◽  
Natural Gas ◽  
Gas Pressure ◽  
Generation System ◽  
Power Generation System

Numerical simulation and experiment on the law of urban natural gas leakage and diffusion for different building layouts

2018 ◽  
Vol 54 ◽  
pp. 1-10 ◽  
Author(s):  
Aihua Liu ◽  
Jian Huang ◽  
Zhiwen Li ◽  
Jieyun Chen ◽  
Xiaofei Huang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Natural Gas ◽  
Gas Leakage ◽  
Simulation And Experiment ◽  
The Law ◽  
And Diffusion

The Application of Numerical Simulation to Liquid Pipeline Leakage at LNG Terminal in China

2020 ◽  
Author(s):  
Zhichao Guo ◽  
Zhaoci Li
Keyword(s):  
Numerical Simulation ◽  
Liquid Phase ◽  
Natural Gas ◽  
Diffusion Process ◽  
Gas Phase ◽  
Stokes Equations ◽  
Response Strategy ◽  
Movement Trajectory ◽  
Two Phase ◽  
And Diffusion

Abstract In 2018, China’s natural gas import reached 90.39 million tons, and the liquefied natural gas (LNG) import was 53.78 million tons, accounting for 59.5% of total natural gas imports. With the construction of LNG terminals, more studies on the leakage of LNG storage and transportation facilities have emerged to prevent catastrophic consequences such as explosions and frostbite. However, most of previous researches focused on gas pipeline leakage after LNG gasification, and few of those have been done on LNG liquid pipeline leakage. In this paper, Fluent software is used to numerically simulate the process of LNG liquid pipeline leakage. After the occurrence of LNG leakage, it will suffer the process of endothermic, evaporation, and diffusion, which is considered as a two-phase diffusion process. The Euler-Lagrangian method is introduced to simulate the diffusion process of gas phase and liquid phase separately. In the simulation, the liquid phase is regarded as discrete droplets for discrete processing. The movement trajectory, heat transfer process and evaporation process of each droplet are tracked respectively. Different from the liquid phase, the gas phase is regarded as a continuous phase and the Navier-Stokes equations are adopted for calculation. Thereafter, coupling calculations of two phase are performed to determine the concentration field and temperature field of the LNG liquid pipeline leakage. As a supplement to this research, the influence of wind speed on LNG leakage and diffusion process is analysed in detail. Finally, the numerical simulation method is applied to a coastal LNG terminal in northern China to determine the distribution of natural gas concentration and temperature, as well as delimit the combustion range. The results can provide scientific reference for the delimitation of risky zones and the formulation of emergency response strategy.

3D numerical simulation on drilling fluid invasion into natural gas hydrate reservoirs

Energy ◽  
2021 ◽  
pp. 122932
Author(s):  
Lin Dong ◽  
Yizhao Wan ◽  
Yanlong Li ◽  
Hualin Liao ◽  
Changling Liu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Drilling Fluid ◽  
Natural Gas Hydrate ◽  
3D Numerical Simulation ◽  
Hydrate Reservoirs
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