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Edge is an unstructured CFD solver developed at the Swedish Defence Research Agency (Totalförsvarets forskningsinstitut) (FOI) since 1997. The code is fully RANS capable, and features several turbulence models from algebraic to state-of-the-art two-equation models. Furthermore the code also includes LES and DES models and the ability to run in "Euler" and laminar mode. Time-accurate and aeroelastic simulations are also possible.

The Edge flow solver is based on a node-centered finite volume scheme. For steady flows, the equations are integrated towards steady state with an explicit multi-stage Runge-Kutta scheme. To accelerate convergence, residual smoothing and a multi-grid technique can be employed. Low Mach-number preconditioning is also available. Time-accurate computations are implemented using dual time-stepping: implicit time marching with explicit sub-iterations.

The copyright holder is FOI. All rights to Edge are reserved by FOI. An idividual user-based written agreement with FOI is required to get access to the code. Edge or parts of Edge may not be sold, distributed or in any other way made available to third parties without a written permission from FOI.



Resource Centre Description
Akka HPC2N capability cluster resource of 54 TFLOPS with infiniband interconnect
Beda C3SE throughput cluster resource
Glenn C3SE throughput cluster resource
Kappa NSC throughput cluster resource of 26 TFLOPS
Lindgren PDC Cray XE6 capability cluster with 305 TFLOPS peak performance
Matter NSC cluster resource of 37 TFLOPS dedicated to materials science


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Field AE FTE General activities
Frank Bramkamp (NSC) NSC Computational fluid dynamics 100100 Installation and support of computational fluid dynamics software.
Lilit Axner (PDC) PDC Computational fluid dynamics 5050


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