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Version LES Solver -High-Fidelity Flow Simulation Software
Realizing the predictive benefits of LES requires much more than just turning on time dependence and changing the turbulence model. Fidelity CharLES combines advanced numerical methods, models, and extreme scalability in CPU-based and GPU-based high-performance computing environments.
Large Eddy Simulation—our secret sauce
Behind our high-fidelity simulations for aeroacoustics, aerodynamics, combustion, heat transfer, and multiphase is CharLES—our large eddy simulation (LES) flow solver. CharLES features multi-physics simulation capabilities that can accurately predict some of the most challenging problems in computational fluid dynamics.
Aeroacoustics predictions are relevant for a wide range of industrial applications, from supersonic jets to fan noise to combustion-acoustic interactions in gas turbines. Even for “extremely loud” noises, the pressure fluctuations that constitute the radiated sound are orders of magnitude smaller than the ambient pressure and much smaller than the near-field pressure disturbances associated with turbulent compressible flow.
CharLES is ideally suited to capture such important but low-energetic acoustic features, thanks to its unsteady simulation capabilities with low-dissipation and low-dispersion numerical methods.
CharLES can predict aerodynamic forces for complex geometries over a range of flow regimes from low-Mach to transonic and supersonic. For example, capture changes in vehicle drag due to subtle geometric design modifications. Or, identify the onset of stall over high angle of attack airfoils on a commercial aircraft.
Turbulent combustion underpins much of our modern energy economy. Power generation, aviation, aerospace, and automotive technologies all depend on how well we mix reactants, release their energy, and manage their byproducts. Making these processes cleaner, safer, and more efficient is crucial to navigating the future of our planet.
The combustion models in CharLES work seamlessly with its advanced numerics to deliver accurate and cost-effective predictions of turbulent reacting flows. These solutions—along with specialized data processing tools and analytics—enable combustion engineers to understand their current systems better and imagine the next generation of improved combustion technologies.