Services Used: Engineering Design
MEL completed a Computational Fluid Dynamics (CFD) study to determine the dispersion of gas discharged from a 450mm diameter by 10m high stack. The stack discharge results from a rapid release of gas from a pressurised storage tank.
A transient computational fluid flow time analysis was performed as the initial discharge rate was significant but dropped progressively as the tank pressure reduced.
Various scenarios were analysed investigating the effects of different discharge rates along with ambient environmental temperatures, wind velocity and wind direction conditions.
The results of the study show gas concentration levels as it discharges from the stack and disperses into the environment over time. The results were used to investigate the environmental effects of a gas discharge.
The gas concentrations shown in the animations are visualised by iso-surfaces representing three gas concentration ranges of interest.
A short animation also shows the results over time.