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Mommert, Michael and Bauer, Christian and Wagner, Claus (2024) Curvature-based energy spectra from neural representations of turbulent Rayleigh-Bénard convection. In: 26th International Congress of Theoretical and Applied Mechanics ICTAM 2024. 26th ICTAM 2024, 2024-08-25 - 2024-08-30, Daegu, Korea.
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Official URL: https://www.ictam2024.org/
Abstract
Physics-informed neural networks are used to analyze turbulent Rayleigh-Bénard convection. Taking advantage of automatic differentiation, the availability of derivatives allows the local computation of various turbulent parameters. In the work presented here, we determine the curvature of the velocity vector field as an indicator of the prevalent length scale, to compute an energy spectrum based on its combined histogram with the kinetic energy.
| Item URL in elib: | https://elib.dlr.de/204058/ | ||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
| Title: | Curvature-based energy spectra from neural representations of turbulent Rayleigh-Bénard convection | ||||||||||||||||
| Authors: |
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| Date: | 27 August 2024 | ||||||||||||||||
| Journal or Publication Title: | 26th International Congress of Theoretical and Applied Mechanics ICTAM 2024 | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | No | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | No | ||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||
| Editors: |
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| Status: | Published | ||||||||||||||||
| Keywords: | neural nets, energy spectrum, curvature | ||||||||||||||||
| Event Title: | 26th ICTAM 2024 | ||||||||||||||||
| Event Location: | Daegu, Korea | ||||||||||||||||
| Event Type: | international Conference | ||||||||||||||||
| Event Start Date: | 25 August 2024 | ||||||||||||||||
| Event End Date: | 30 August 2024 | ||||||||||||||||
| Organizer: | IUTAM | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Transport | ||||||||||||||||
| HGF - Program Themes: | Rail Transport | ||||||||||||||||
| DLR - Research area: | Transport | ||||||||||||||||
| DLR - Program: | V SC Schienenverkehr | ||||||||||||||||
| DLR - Research theme (Project): | V - RoSto - Rolling Stock | ||||||||||||||||
| Location: | Göttingen | ||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Ground Vehicles | ||||||||||||||||
| Deposited By: | Mommert, Michael | ||||||||||||||||
| Deposited On: | 05 Nov 2024 13:23 | ||||||||||||||||
| Last Modified: | 05 Nov 2024 13:23 |
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