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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.16554 |
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| _version_ | 1866909211073445888 |
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| author | Chu, Minghan Qian, Weicheng |
| author_facet | Chu, Minghan Qian, Weicheng |
| contents | Engineering design and scientific analysis rely upon computer simulations of turbulent fluid flows using turbulence models. These turbulence models are empirical and approximate, leading to large uncertainties in their predictions that hamper scientific and engineering advances. We outline a Physics Constrained Deep Learning framework to estimate turbulence model uncertainties using physics based Eigenspace Perturbations along with Deep Learning based guidance. The Deep Learning based modulation controls the spatial variation in perturbation magnitude to improve the calibration of uncertainty estimates over the state of the art physics based methods. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_16554 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Physics Constrained Deep Learning For Turbulence Model Uncertainty Quantification Chu, Minghan Qian, Weicheng Fluid Dynamics Computational Physics Engineering design and scientific analysis rely upon computer simulations of turbulent fluid flows using turbulence models. These turbulence models are empirical and approximate, leading to large uncertainties in their predictions that hamper scientific and engineering advances. We outline a Physics Constrained Deep Learning framework to estimate turbulence model uncertainties using physics based Eigenspace Perturbations along with Deep Learning based guidance. The Deep Learning based modulation controls the spatial variation in perturbation magnitude to improve the calibration of uncertainty estimates over the state of the art physics based methods. |
| title | Physics Constrained Deep Learning For Turbulence Model Uncertainty Quantification |
| topic | Fluid Dynamics Computational Physics |
| url | https://arxiv.org/abs/2405.16554 |