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Version Fidelity CharLES -High-Accuracy Large Eddy Simulations For Multiphysics CFD Software

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Accelerated Large Eddy Simulation CFD for Your Toughest Design Challenges. The Fidelity CharLES solver is the industry’s first high-fidelity computational fluid dynamics (CFD) solver that expands the practical application of large eddy simulations (LES) to a broad range of engineering applications in aerospace, automotive, and turbomachinery. Designed to tackle the toughest fluid dynamics challenges, it accurately predicts traditionally complex problems for CFD in aeroacoustics, aerodynamics, combustion, heat transfer, and multiphase. High-fidelity LES simulations deliver world-class accuracy and stability, but practical applications of the technology have traditionally been limited due to the cost—a single simulation can consume thousands of CPU cores for days.

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Fidelity CharLES software introduces a paradigm shift to the industry with the ability to leverage both computer processing units (CPUs) and graphical processing units (GPUs), reducing the turnaround time for LES simulations from days to hours. The solver has been optimized to consume as little memory as possible and scales linearly to hundreds of GPUs across dozens of nodes.

Massive LES Simulations Providing Accuracy, Speed, and Performance

Fast and Reliable

Massively parallel and scalable, capable of leveraging large computation resources to get accurate answers in hours instead of days.

Highest Accuracy

Purpose-built for LES, with high-quality mesh generation, accurate and stable non-dissipative numerical methods, and accurate modeling for unresolved physics.

Cost Efficient

Scalable, GPU-resident solver provides the fastest time to results with the best price performance and lowest power consumption.

For Your Toughest Challenges

Accurately predicts traditionally complex problems for CFD, such as flow separation, transition, turbulent mixing, and aero-acoustic noise, among others.

An End-to-End Solution for High-Fidelity CFD

Voronoi Meshing

Predictive high-fidelity simulations require high-quality meshes. By leveraging clipped Voronoi diagrams, the polyhedral mesh generator is fast, scalable, and robust when processing most complex geometries. Users can easily introduce resolution where needed, run coarse simulations of complex geometries, and simulate moving geometries.

LES Solver

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.

GPU Acceleration

Fidelity CharLES provides solver advancements on the numerical scheme, and leverages GPU computing, enabling massive LES simulations, such as the accurate simulation of a realistic aircraft in landing configuration, in 12 hours on just two GPU nodes.

Leveraging these modern compute architectures provides up to 9X throughput for the same cost with 17X less energy consumption of CPUs.

Analysis

Dimensional reduction of the large amount of data produced by high-fidelity simulation is a supercomputing problem. Fidelity CharLES has multiple parallel and serial tools to analyze these large datasets and quickly provide answers.

Provides a robust set of post-processing capabilities designed specifically to aid in analyzing high-fidelity, time-dependent data

Predicts far-field acoustics with an efficient, massively scalable implementation of the Ffowcs Williams-Hawkings (FW-H) formulation

Leverages quantitative imaging, a unique and powerful feature of Fidelity CharLES that enriches portable network graphics (PNGs) with custom metadata to rapidly compute statistics and modes or highlight differences between cases

Offers various modal decomposition methods for both image and full-field data