This paper presents an attempt to evaluate the explosible gas distribution by solving the concentration equation based on the previously simulated wind flow field. Since the explosible gas dispersion is often the cause leading to some serious accidents all over the world, it is generally regarded as a dangerous factor to be minimized. A numerical simulation happens to be for the time an ideal method to dissolve the concentration equation. In this paper, the author has tried a turbulence model, known as κ ...