Gas dispersion analysis, either from jet leaks, liquid pools or underwater leaks emerging at surface, may be performed as part of the probabilistic explosion analysis. However, it may also be relevant for investigating exposure of air intakes or other specific ignition sources.
We perform gas dispersion analysis either using FLUENT, FLACS or KFX, depending on the purpose or availability of 3D model.
Prior to simulating the gas dispersion, which is quite time consuming, one must agree on the leak cases to be investigated, i.e. the leak sources, fluids, degree of congestion/obstruction as well as the wind conditions.
Example of 2D plot showing the extent and concentration of a gas dispersed in a hazardous area: