1,721,094 research outputs found
Time-Resolved Simulations of Moving Boundary Problems in OpenFOAM: Application to Cavitating Sprays and In-Cylinder Flows (invited keynote at conference)
No full textInvited Plenary lecture at the Argonne National Lab on the research activity carried out in 2016 on the development of advanced techniques for IC engines modeling
Developments in transient modeling, moving mesh, turbulence and multiphase methodologies in OpenFOAM
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A hybrid CPU‐GPU paradigm to accelerate reactive CFD simulations
Full text linkThe solution of reactive computational fluid dynamics (CFD) simulations is accelerated by the implementation of a hybrid central processing unit/graphics processing units (CPU/GPU) Finite Volume solver based on the operator-splitting strategy, where the chemistry integration is treated independently of the flow solution. The integration of ordinary differential equations (ODEs) describing the finite-rate chemical kinetics is solved by an adaptive multi-block explicit solver on GPUs, while the load of the fluid solution is distributed on a multicore CPU algorithm. The resulting speed-up for reactive CFD simulations is up to 10X; the performance gain increases with the size of the mechanism. The proposed implementation is general and can be applied to any CFD problem where the governing equations for the fluid transport are coupled with an ODE system. Code validation is performed against reference solutions on a selection of test cases involving reacting flows
A novel 1D approach for the simulation of unsteady reacting flows in diesel exhaust after-treatment systems
No full textA Computational Investigation of the Hydrodynamics and the Soot Deposition Mechanism on the Channel Walls of a Diesel Particulate Filter
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