{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:LQGGWKIEO4763DADXMYZYXNA3A","short_pith_number":"pith:LQGGWKIE","schema_version":"1.0","canonical_sha256":"5c0c6b2904773fed8c03bb319c5da0d80fbf8a23e3a0e73125f32d709a4b70a8","source":{"kind":"arxiv","id":"2511.11420","version":3},"attestation_state":"computed","paper":{"title":"Vortex breakdown and its topologies in turbulent flows within a typical swirl combustor geometry","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Anupam Dewan, Mayank Kumar, Nitesh Kumar Sahu","submitted_at":"2025-11-14T15:51:15Z","abstract_excerpt":"We investigate vortex breakdown (VB) and its dominant topologies in turbulent, non-reacting flows within a canonical swirl combustor using large-eddy simulations (LES). A baseline configuration and operating conditions are first used to validate the LES solver, then five additional cases differing only by swirler vane-angle are simulated. The onset of VB is quantified using the generic swirl-number formulation, SNg, by detecting an internal recirculation zone (IRZ) in the mean flow, excluding highly-intermittent VB cases. Analysis of the mean flow shows that SNg measured within 40 mm downstrea"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2511.11420","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.flu-dyn","submitted_at":"2025-11-14T15:51:15Z","cross_cats_sorted":[],"title_canon_sha256":"857da3cb722ba08303dd061a1d1ce12db66f9105b969567c3350ebb75df8889f","abstract_canon_sha256":"569054f3761991384b5d0a1a2ce6e696cc882aa236b9058962176aa403579353"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-09T01:05:10.622263Z","signature_b64":"IHy+vNsl+jUAdBiCl+Dpb0/YWcxjmX+byq6vpBtY1eZJ2b2etLFqmH2B8naH7p43DE6Zi5yOVKDrcIsRcdr9DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5c0c6b2904773fed8c03bb319c5da0d80fbf8a23e3a0e73125f32d709a4b70a8","last_reissued_at":"2026-06-09T01:05:10.621741Z","signature_status":"signed_v1","first_computed_at":"2026-06-09T01:05:10.621741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Vortex breakdown and its topologies in turbulent flows within a typical swirl combustor geometry","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Anupam Dewan, Mayank Kumar, Nitesh Kumar Sahu","submitted_at":"2025-11-14T15:51:15Z","abstract_excerpt":"We investigate vortex breakdown (VB) and its dominant topologies in turbulent, non-reacting flows within a canonical swirl combustor using large-eddy simulations (LES). A baseline configuration and operating conditions are first used to validate the LES solver, then five additional cases differing only by swirler vane-angle are simulated. The onset of VB is quantified using the generic swirl-number formulation, SNg, by detecting an internal recirculation zone (IRZ) in the mean flow, excluding highly-intermittent VB cases. Analysis of the mean flow shows that SNg measured within 40 mm downstrea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.11420","kind":"arxiv","version":3},"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/2511.11420/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2511.11420","created_at":"2026-06-09T01:05:10.621812+00:00"},{"alias_kind":"arxiv_version","alias_value":"2511.11420v3","created_at":"2026-06-09T01:05:10.621812+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.11420","created_at":"2026-06-09T01:05:10.621812+00:00"},{"alias_kind":"pith_short_12","alias_value":"LQGGWKIEO476","created_at":"2026-06-09T01:05:10.621812+00:00"},{"alias_kind":"pith_short_16","alias_value":"LQGGWKIEO4763DAD","created_at":"2026-06-09T01:05:10.621812+00:00"},{"alias_kind":"pith_short_8","alias_value":"LQGGWKIE","created_at":"2026-06-09T01:05:10.621812+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A","json":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A.json","graph_json":"https://pith.science/api/pith-number/LQGGWKIEO4763DADXMYZYXNA3A/graph.json","events_json":"https://pith.science/api/pith-number/LQGGWKIEO4763DADXMYZYXNA3A/events.json","paper":"https://pith.science/paper/LQGGWKIE"},"agent_actions":{"view_html":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A","download_json":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A.json","view_paper":"https://pith.science/paper/LQGGWKIE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2511.11420&json=true","fetch_graph":"https://pith.science/api/pith-number/LQGGWKIEO4763DADXMYZYXNA3A/graph.json","fetch_events":"https://pith.science/api/pith-number/LQGGWKIEO4763DADXMYZYXNA3A/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A/action/storage_attestation","attest_author":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A/action/author_attestation","sign_citation":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A/action/citation_signature","submit_replication":"https://pith.science/pith/LQGGWKIEO4763DADXMYZYXNA3A/action/replication_record"}},"created_at":"2026-06-09T01:05:10.621812+00:00","updated_at":"2026-06-09T01:05:10.621812+00:00"}