Abstract :
The most common phenomenon of natural gas pipeline accidents is natural gas pipeline leak, the wind effect on the proliferation of natural gas containing hydrogen sulfide can not be ignored. This paper based on CFD method, using FLUNET software, numerical simulation of 0m/s, 5m/s, 7m/s three different wind speed effect on the proliferation, considering the influence of gravity, Obtained consequence of different wind speeds effect on diffusion of natural gas containing hydrogen sulfide: Wind will lead to leakage speed of the balance of extended, simulation media is natural gas containing hydrogen sulfide, so taking the limit of hydrogen sulfide poisoning is 2 mg/, emphatically analyzed the range of hazardous area in the wind situations, the conclusion is that all area under the direction of wind is hazardous area in the continued to leak situations, after the accident, as soon as possible to leave the dangerous area.
