Computational Sciences/Simulation

Our research explores a number of different scientific simulation fields, most of which have particular significance to LLNL programs (e.g., high-energy-density physics). Other scientific simulation work showcases the Lab’s high performance computing capabilities in collaborative efforts with scientists at other institutions. View content related to Computational Sciences/Simulation.

The ground truth: simulating real conflict scenarios in real time with real data

Unlike the world of war-themed video games, simulating a real-world battlefield means creating and manipulating huge quantities of data that represent complex, dynamic scenarios comprising hundreds of thousands of individual objects. Such objects, called entities, may include soldiers, sensor systems, weaponry, aircraft, vehicles, and equipment. But battles don’t take place in a sandbox.

GEFIE-QUAD: Laser Grating Simulation

The code GEFIE-QUAD (gratings electric field integral equation on quadrilateral grids) is a first-principles simulation method to model the interaction of laser light with diffraction gratings, and to determine how grating imperfections can affect the performance of the compressor in a CPA laser system. GEFIE-QUAD gives scientists a powerful simulation tool to predict the performance of a realistic laser compressor.

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