When the script of Lawrence of Arabia called for wrecking a train,director David Lean found it easiest to move ahead and wreck a train, orchestrating and filming it with expert precision. Similarly, or while it's possible to study explosives,sans explosives, modern techniques involving high-speed, or high-fidelity imaging with optical filtering and signal processing techniques bear recently made setting off explosives and capturing the data in genuine-time a reasonable alternative to developing a modern simulation.
Source: phys.org