{"paper":{"title":"Universal fluctuations in the bulk of Rayleigh-B\\'enard turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.geo-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Bu-Ying-Chao Cheng, Ke-Qing Xia, Yi-Chao Xie, Yun-Bing Hu","submitted_at":"2019-08-16T04:00:05Z","abstract_excerpt":"We present an investigation of the root-mean-square (rms) temperature $\\sigma_T$ and the rms velocity $\\sigma_w$ in the bulk of Rayleigh-B\\'enard turbulence, using new experimental data from the current study and experimental and numerical data from previous studies. We find that, once scaled by the convective temperature $\\theta_*$, the value of $\\sigma_T$ at the cell centre is a constant, i.e. $\\sigma_{T,c}/\\theta_* \\approx 0.85$, over a wide range of the Rayleigh number ($10^{8}\\leq Ra\\leq 10^{15}$) and the Prandtl number ($0.7\\leq Pr \\leq 23.34$), and is independent of the surface topograp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.05837","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.05837/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}