{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:7U6H6TG5PVAM3KLM5NBNJYDMWI","short_pith_number":"pith:7U6H6TG5","schema_version":"1.0","canonical_sha256":"fd3c7f4cdd7d40cda96ceb42d4e06cb213bd204a08eed451fc3dac08add5dcae","source":{"kind":"arxiv","id":"2601.19804","version":2},"attestation_state":"computed","paper":{"title":"Hydrodynamic Behavior of Non-spherical Particles in Confined Vertical Flows: A Resolved CFD-DEM Study","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.app-ph","authors_text":"Amiya Prakash Das, Amudha Krishnan, Balaji Ramakrishnan, Gopkumar Kuttikrishnan, Ratna Kumar Annabattula, Shakti Swaroop Choudhury, Sujith Reddy Jaggannagari","submitted_at":"2026-01-27T17:05:01Z","abstract_excerpt":"We investigate the sedimentation and vertical hydraulic transport of non-spherical polymetallic nodules (PMNs) using resolved computational fluid dynamics-discrete element method (CFD-DEM) with multisphere particles spanning $98 < Re_\\text{p} < 2904$. Shape effects induce 1.8-2.0 times drag enhancement relative to volume-equivalent spheres, arising from 50\\% larger frontal areas and wake asymmetry, reducing terminal velocities by 27-29\\%. Vertical transport exhibits velocity-driven transitions from intermittent settling to stable convection, as demonstrated by residence-time and drag-force sta"},"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":"2601.19804","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2026-01-27T17:05:01Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"f3b2e236d8b1c2ad7a671b5cfd203c6108df0f0e4d7e0dcab233b8a8602f7ea6","abstract_canon_sha256":"38672b718553b8f8a00d31b43a9957f8276e51566508963782ab1e387e31f60a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-04T00:06:50.653620Z","signature_b64":"vpYBDSZ3oVji2Nv93MHOHNwOM8maASwoCVasxoHY7tjabi2leyCC76idKmw9vkyYOXuZ3ZqFYbhmxKr+/wZzBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd3c7f4cdd7d40cda96ceb42d4e06cb213bd204a08eed451fc3dac08add5dcae","last_reissued_at":"2026-06-04T00:06:50.653174Z","signature_status":"signed_v1","first_computed_at":"2026-06-04T00:06:50.653174Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hydrodynamic Behavior of Non-spherical Particles in Confined Vertical Flows: A Resolved CFD-DEM Study","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.app-ph","authors_text":"Amiya Prakash Das, Amudha Krishnan, Balaji Ramakrishnan, Gopkumar Kuttikrishnan, Ratna Kumar Annabattula, Shakti Swaroop Choudhury, Sujith Reddy Jaggannagari","submitted_at":"2026-01-27T17:05:01Z","abstract_excerpt":"We investigate the sedimentation and vertical hydraulic transport of non-spherical polymetallic nodules (PMNs) using resolved computational fluid dynamics-discrete element method (CFD-DEM) with multisphere particles spanning $98 < Re_\\text{p} < 2904$. Shape effects induce 1.8-2.0 times drag enhancement relative to volume-equivalent spheres, arising from 50\\% larger frontal areas and wake asymmetry, reducing terminal velocities by 27-29\\%. Vertical transport exhibits velocity-driven transitions from intermittent settling to stable convection, as demonstrated by residence-time and drag-force sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.19804","kind":"arxiv","version":2},"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/2601.19804/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":"2601.19804","created_at":"2026-06-04T00:06:50.653233+00:00"},{"alias_kind":"arxiv_version","alias_value":"2601.19804v2","created_at":"2026-06-04T00:06:50.653233+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.19804","created_at":"2026-06-04T00:06:50.653233+00:00"},{"alias_kind":"pith_short_12","alias_value":"7U6H6TG5PVAM","created_at":"2026-06-04T00:06:50.653233+00:00"},{"alias_kind":"pith_short_16","alias_value":"7U6H6TG5PVAM3KLM","created_at":"2026-06-04T00:06:50.653233+00:00"},{"alias_kind":"pith_short_8","alias_value":"7U6H6TG5","created_at":"2026-06-04T00:06:50.653233+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/7U6H6TG5PVAM3KLM5NBNJYDMWI","json":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI.json","graph_json":"https://pith.science/api/pith-number/7U6H6TG5PVAM3KLM5NBNJYDMWI/graph.json","events_json":"https://pith.science/api/pith-number/7U6H6TG5PVAM3KLM5NBNJYDMWI/events.json","paper":"https://pith.science/paper/7U6H6TG5"},"agent_actions":{"view_html":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI","download_json":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI.json","view_paper":"https://pith.science/paper/7U6H6TG5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2601.19804&json=true","fetch_graph":"https://pith.science/api/pith-number/7U6H6TG5PVAM3KLM5NBNJYDMWI/graph.json","fetch_events":"https://pith.science/api/pith-number/7U6H6TG5PVAM3KLM5NBNJYDMWI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI/action/storage_attestation","attest_author":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI/action/author_attestation","sign_citation":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI/action/citation_signature","submit_replication":"https://pith.science/pith/7U6H6TG5PVAM3KLM5NBNJYDMWI/action/replication_record"}},"created_at":"2026-06-04T00:06:50.653233+00:00","updated_at":"2026-06-04T00:06:50.653233+00:00"}