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Your search keyword '"Giangaspero, Giorgio"' showing total 12 results
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12 results on '"Giangaspero, Giorgio"'

1. PyFR v2.0.3: Towards Industrial Adoption of Scale-Resolving Simulations

Author

Witherden, Freddie D., Vincent, Peter E., Trojak, Will, Abe, Yoshiaki, Akbarzadeh, Amir, Akkurt, Semih, Alhawwary, Mohammad, Caros, Lidia, Dzanic, Tarik, Giangaspero, Giorgio, Iyer, Arvind S., Jameson, Antony, Koch, Marius, Loppi, Niki, Mishra, Sambit, Modi, Rishit, Sáez-Mischlich, Gonzalo, Park, Jin Seok, Vermeire, Brian C., and Wang, Lai

Subjects
Physics - Computational Physics
Abstract

PyFR is an open-source cross-platform computational fluid dynamics framework based on the high-order Flux Reconstruction approach, specifically designed for undertaking high-accuracy scale-resolving simulations in the vicinity of complex engineering geometries. Since the initial release of PyFR v0.1.0 in 2013, a range of new capabilities have been added to the framework, with a view to enabling industrial adoption of the capability. This paper provides details of those enhancements as released in PyFR v2.0.3, explains efforts to grow an engaged developer and user community, and provides latest performance and scaling results on up to 1024 AMD Instinct MI250X accelerators of Frontier at ORNL (each with two GCDs), and up to 2048 NVIDIA GH200 GPUs on Alps at CSCS.

Published
2024

3. Synthetic Turbulence Generation in PyFR

Author

Giangaspero, Giorgio, speaker

Abstract

The generation of realistic incoming turbulence is often a prerequisite to carrying out accurate scale-resolving simulations of spatially developing unsteady flows around complex geometries, like the ones found in many industrial settings. The challenge of developing synthetic turbulence generation methods that are ideally accurate, flexible, robust and cheap to compute is object of active research and this talk describes our steps in that direction. I will describe an extended version of the Synthetic Eddy Method that is being developed in PyFR and the implementation strategy. I will also present simulation results for two test cases: a plane turbulent channel flow and the turbulent flow over a model high rise building.

Published
2021
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12. Efficiency Benchmarking of an Energy Stable High-Order Finite Difference Discretization.

Author

van Der Weide, Edwin, Giangaspero, Giorgio, and Svärd, Magnus

Subjects
*BENCHMARKING (Management), *FINITE difference method, *DISCRETIZATION methods, *METHODOLOGY, *ROBUST control
Abstract

In this paper, results are presented for a number of benchmark cases, proposed at the 2nd International Workshop on High-Order CFD Methods in Cologne, Germany, in 2013. A robust high-order-accurate finite difference method was used that was developed during the last 10-15 years. The robustness stems from the fact that the entire numerical procedure, including various kinds of boundary conditions, can be proven stable. This paper outlines the methodology, and it summarizes results presented at the workshop along with some more data and tests. [ABSTRACT FROM AUTHOR]

Published
2015
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