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Title | Type | --> | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | journal | 1.701 Q1 | 107 | 520 | 1336 | 27731 | 11396 | 1289 | 8.23 | 53.33 | 35.47 | ||
2 | journal | 1.488 Q1 | 206 | 1949 | 4138 | 95009 | 29287 | 4129 | 6.95 | 48.75 | 26.67 | ||
3 | journal | 1.262 Q1 | 34 | 262 | 236 | 14727 | 2180 | 236 | 8.98 | 56.21 | 16.48 | ||
4 | journal | 1.224 Q1 | 251 | 1059 | 4046 | 50739 | 22823 | 4045 | 5.46 | 47.91 | 24.17 | ||
5 | journal | 1.066 Q1 | 56 | 449 | 1728 | 22591 | 4693 | 1716 | 2.54 | 50.31 | 16.81 | ||
6 | journal | 1.050 Q1 | 203 | 3000 | 5425 | 150780 | 22962 | 5394 | 4.11 | 50.26 | 24.34 | ||
7 | journal | 1.049 Q1 | 6 | 40 | 48 | 2298 | 140 | 47 | 2.92 | 57.45 | 20.57 | ||
8 | journal | 1.035 Q1 | 72 | 1193 | 1969 | 50027 | 13906 | 1968 | 7.03 | 41.93 | 24.61 | ||
9 | journal | 0.966 Q1 | 83 | 148 | 446 | 8187 | 2935 | 445 | 6.52 | 55.32 | 18.74 | ||
10 | journal | 0.960 Q1 | 86 | 292 | 372 | 20629 | 1917 | 370 | 5.44 | 70.65 | 43.93 | ||
11 | journal | 0.956 Q1 | 66 | 47 | 123 | 2434 | 356 | 121 | 1.97 | 51.79 | 17.52 | ||
12 | journal | 0.939 Q1 | 140 | 248 | 726 | 12376 | 2925 | 725 | 3.84 | 49.90 | 18.18 | ||
13 | journal | 0.936 Q1 | 56 | 630 | 922 | 30416 | 5125 | 921 | 5.54 | 48.28 | 23.79 | ||
14 | journal | 0.882 Q1 | 13 | 22 | 69 | 931 | 381 | 69 | 5.52 | 42.32 | 17.28 | ||
15 | journal | 0.870 Q1 | 124 | 115 | 337 | 6436 | 1489 | 335 | 4.29 | 55.97 | 23.52 | ||
16 | journal | 0.865 Q1 | 55 | 69 | 266 | 2594 | 1292 | 262 | 4.51 | 37.59 | 20.59 | ||
17 | journal | 0.850 Q1 | 52 | 266 | 650 | 14162 | 2631 | 645 | 3.48 | 53.24 | 30.40 | ||
18 | journal | 0.848 Q1 | 142 | 196 | 686 | 8395 | 1767 | 677 | 2.36 | 42.83 | 14.42 | ||
19 | journal | 0.845 Q1 | 35 | 188 | 220 | 8848 | 852 | 214 | 3.51 | 47.06 | 23.08 | ||
20 | journal | 0.832 Q1 | 35 | 123 | 224 | 7400 | 1382 | 222 | 5.78 | 60.16 | 33.87 | ||
21 | journal | 0.784 Q1 | 18 | 34 | 85 | 1391 | 316 | 84 | 3.85 | 40.91 | 22.77 | ||
22 | journal | 0.763 Q1 | 41 | 41 | 101 | 2225 | 582 | 101 | 5.75 | 54.27 | 16.56 | ||
23 | journal | 0.731 Q1 | 137 | 209 | 558 | 9343 | 1954 | 554 | 3.14 | 44.70 | 24.15 | ||
24 | journal | 0.703 Q2 | 126 | 111 | 401 | 5102 | 1073 | 398 | 2.77 | 45.96 | 11.64 | ||
25 | journal | 0.570 Q2 | 42 | 71 | 214 | 4886 | 672 | 214 | 2.49 | 68.82 | 23.91 | ||
26 | journal | 0.569 Q2 | 17 | 49 | 59 | 2115 | 228 | 59 | 4.10 | 43.16 | 28.70 | ||
27 | journal | 0.537 Q2 | 79 | 227 | 410 | 8457 | 1023 | 398 | 2.54 | 37.26 | 16.99 | ||
28 | journal | 0.536 Q2 | 36 | 67 | 242 | 5679 | 1014 | 242 | 3.94 | 84.76 | 25.35 | ||
29 | journal | 0.524 Q2 | 35 | 43 | 123 | 2087 | 270 | 122 | 2.37 | 48.53 | 31.45 | ||
30 | journal | 0.522 Q2 | 46 | 254 | 1013 | 10864 | 3613 | 1009 | 3.56 | 42.77 | 19.10 | ||
31 | journal | 0.516 Q2 | 78 | 65 | 254 | 5509 | 774 | 252 | 2.71 | 84.75 | 34.12 | ||
32 | journal | 0.508 Q2 | 130 | 11085 | 34291 | 503877 | 107515 | 33727 | 2.92 | 45.46 | 32.43 | ||
33 | journal | 0.478 Q2 | 32 | 58 | 181 | 2631 | 438 | 167 | 2.03 | 45.36 | 31.20 | ||
34 | journal | 0.473 Q2 | 84 | 1139 | 3485 | 54643 | 10237 | 3446 | 2.89 | 47.97 | 27.43 | ||
35 | journal | 0.473 Q2 | 27 | 112 | 268 | 4148 | 577 | 257 | 2.14 | 37.04 | 23.64 | ||
36 | journal | 0.469 Q2 | 84 | 162 | 553 | 6925 | 1345 | 553 | 2.23 | 42.75 | 22.27 | ||
37 | journal | 0.461 Q2 | 71 | 85 | 315 | 3562 | 625 | 298 | 1.81 | 41.91 | 28.52 | ||
38 | journal | 0.437 Q2 | 19 | 23 | 91 | 677 | 158 | 91 | 1.81 | 29.43 | 14.49 | ||
39 | journal | 0.420 Q2 | 49 | 38 | 119 | 1830 | 242 | 119 | 2.13 | 48.16 | 39.70 | ||
40 | journal | 0.418 Q2 | 15 | 27 | 64 | 2419 | 143 | 64 | 2.13 | 89.59 | 31.82 | ||
41 | journal | 0.404 Q2 | 30 | 320 | 1090 | 14453 | 2169 | 1079 | 1.96 | 45.17 | 20.94 | ||
42 | journal | 0.404 Q2 | 28 | 0 | 41 | 0 | 113 | 41 | 2.17 | 0.00 | 0.00 | ||
43 | journal | 0.397 Q2 | 76 | 57 | 270 | 2311 | 403 | 246 | 1.34 | 40.54 | 17.09 | ||
44 | journal | 0.384 Q2 | 37 | 40 | 114 | 1598 | 203 | 110 | 1.75 | 39.95 | 17.83 | ||
45 | journal | 0.381 Q2 | 32 | 86 | 290 | 3136 | 526 | 285 | 1.92 | 36.47 | 20.68 | ||
46 | journal | 0.379 Q3 | 37 | 86 | 524 | 3101 | 867 | 521 | 1.70 | 36.06 | 21.11 | ||
47 | journal | 0.363 Q3 | 28 | 133 | 332 | 3041 | 260 | 332 | 0.83 | 22.86 | 26.09 | ||
48 | journal | 0.346 Q3 | 23 | 134 | 301 | 4455 | 677 | 293 | 2.23 | 33.25 | 22.60 | ||
49 | journal | 0.345 Q3 | 10 | 25 | 126 | 660 | 71 | 126 | 0.56 | 26.40 | 15.56 | ||
50 | journal | 0.337 Q3 | 36 | 25 | 62 | 1004 | 62 | 58 | 1.28 | 40.16 | 13.46 |
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Dynamic mode decomposition of numerical and experimental data.
Published online by Cambridge University Press: 01 July 2010
The description of coherent features of fluid flow is essential to our understanding of fluid-dynamical and transport processes. A method is introduced that is able to extract dynamic information from flow fields that are either generated by a (direct) numerical simulation or visualized/measured in a physical experiment. The extracted dynamic modes, which can be interpreted as a generalization of global stability modes, can be used to describe the underlying physical mechanisms captured in the data sequence or to project large-scale problems onto a dynamical system of significantly fewer degrees of freedom. The concentration on subdomains of the flow field where relevant dynamics is expected allows the dissection of a complex flow into regions of localized instability phenomena and further illustrates the flexibility of the method, as does the description of the dynamics within a spatial framework. Demonstrations of the method are presented consisting of a plane channel flow, flow over a two-dimensional cavity, wake flow behind a flexible membrane and a jet passing between two cylinders.
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- DOI: https://doi.org/10.1017/S0022112010001217
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- Published: 10 August 2023
The transformative potential of machine learning for experiments in fluid mechanics
- Ricardo Vinuesa ORCID: orcid.org/0000-0001-6570-5499 1 , 2 ,
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Nature Reviews Physics volume 5 , pages 536–545 ( 2023 ) Cite this article
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The field of machine learning (ML) has rapidly advanced the state of the art in many fields of science and engineering, including experimental fluid dynamics, which is one of the original big-data disciplines. This Perspective article highlights several aspects of experimental fluid mechanics that stand to benefit from progress in ML, including augmenting the fidelity and quality of measurement techniques, improving experimental design and surrogate digital-twin models and enabling real-time estimation and control. In each case, we discuss recent success stories and ongoing challenges, along with caveats and limitations, and outline the potential for new avenues of ML-augmented and ML-enabled experimental fluid mechanics.
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Acknowledgements
The authors gratefully acknowledge valuable discussions with B. Noack early in the development of this Perspective article. R.V. acknowledges financial support from ERC grant no. 2021-CoG-101043998, DEEPCONTROL. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsible for them. S.L.B. acknowledges support from the National Science Foundation AI Institute in Dynamic Systems (grant no. 2112085). B.J.M. is grateful for the support of the U.S. ONR through a Vannevar Bush Faculty Fellowship, N00014-17-1-3022.
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Vinuesa, R., Brunton, S.L. & McKeon, B.J. The transformative potential of machine learning for experiments in fluid mechanics. Nat Rev Phys 5 , 536–545 (2023). https://doi.org/10.1038/s42254-023-00622-y
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