: Depending on what you're trying to accomplish, there might be open-source software that can meet your needs without the cost.
DNV Phast 6.7 is a legacy version of the industry-standard software used by process safety professionals to model the consequences of accidental chemical releases. It calculates the discharge, dispersion, and physical effects—such as fires, explosions, and toxic clouds—associated with "loss of containment" scenarios in industries like oil and gas, petrochemicals, and pharmaceuticals. DNV - Global Phast 6.7with Crack