{"paper":{"title":"The Origin of Da Scaling: Suppressed Cooling in Fast-Cooling Mixing Layers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"astro-ph.GA","authors_text":"Drummond B. Fielding, Greg L. Bryan, Lachlan Lancaster, Rajsekhar Mohapatra","submitted_at":"2026-06-02T18:00:05Z","abstract_excerpt":"In numerical experiments simulating Turbulent Radiative Mixing Layers (TRMLs) it is observed that as the cooling time in the mixed gas, $t_{\\rm cool}$, becomes very short compared to the dynamical time of the turbulence, $t_{\\rm eddy}/t_{\\rm cool} \\gg 1$, there is a change in the scaling behavior of the total energy radiated in the TRML as a function of this ratio, also known as the Damk\\\"{o}hler number, ${\\rm Da} \\equiv t_{\\rm eddy}/t_{\\rm cool}$, from $\\dot{E}_{\\rm cool} \\propto {\\rm Da}^{1/2}$ to $\\dot{E}_{\\rm cool} \\propto {\\rm Da}^{1/4}$. The latter, so-called \"fast-cooling,\" regime is of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.04093","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/2606.04093/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"}