Study of Wind Speed Effect on Laser Detection in Natural Gas Pipeline Leaking

Abstract

Natural gas pipeline leakage and diffusion can lead to fire and explosion accidents. Laser technology is an important method of detecting natural gas pipeline leakage, but natural gas dispersion process has an obvious influence on laser detection. Dispersion model of buried natural gas pipeline leakage was established, and natural gas dispersion process with different wind speed was simulated by using Fluent software, then wind speed influence on laser detection was analyzed. The results show that in the detection distance, with the wind speed increasing, natural gas diffusion range deflects windward and are close to the ground, and the spectral value becomes small. Natural gas diffusion concentration becomes small with the increase of wind speed in leeward, and the spectral value becomes large.