{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:DGTH5IURHRVIGPSGF56RFDAHUY","short_pith_number":"pith:DGTH5IUR","schema_version":"1.0","canonical_sha256":"19a67ea2913c6a833e462f7d128c07a60c9e5f52941c72e7d8b4f04eed79ec4e","source":{"kind":"arxiv","id":"1811.04339","version":2},"attestation_state":"computed","paper":{"title":"Two mechanisms of VLSM modulation by inertial particles in open channel flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"David Richter, Guiquan Wang","submitted_at":"2018-11-11T03:36:35Z","abstract_excerpt":"Very large-scale motions (VLSMs) and large-scale motions (LSMs) coexist at moderate Reynolds numbers in a very long open channel flow. Direct numerical simulations two-way coupled with inertial particles are analysed using spectral information to investigate the modulation of VLSMs. In the wall-normal direction, particle distributions (mean/preferential concentration) exhibit two distinct behaviors in the inner flow and outer flow, corresponding to two highly anisotropic turbulent structures, LSMs and VLSMs. This results in particle inertia's non-monotonic effects on the VLSMs: low inertia (ba"},"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":"1811.04339","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-11-11T03:36:35Z","cross_cats_sorted":[],"title_canon_sha256":"707e4210978dc674d8638eb707d44d993e9d56e3ef0cd2211da2d70baf6a691b","abstract_canon_sha256":"ef4365ee8ad8ed88a78cc51967b9b9e3e995905e5fe195557f2b77a7b332f8dd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:50.203244Z","signature_b64":"SBjZfrkjoDxKAJjjZn/5p7khinPKCUBtLOT4cxOYj1YstQ75T/x/FZ7mhhne/p0b3Fxm4rGgwJcqZiddS0bOBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19a67ea2913c6a833e462f7d128c07a60c9e5f52941c72e7d8b4f04eed79ec4e","last_reissued_at":"2026-05-17T23:53:50.202651Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:50.202651Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Two mechanisms of VLSM modulation by inertial particles in open channel flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"David Richter, Guiquan Wang","submitted_at":"2018-11-11T03:36:35Z","abstract_excerpt":"Very large-scale motions (VLSMs) and large-scale motions (LSMs) coexist at moderate Reynolds numbers in a very long open channel flow. Direct numerical simulations two-way coupled with inertial particles are analysed using spectral information to investigate the modulation of VLSMs. In the wall-normal direction, particle distributions (mean/preferential concentration) exhibit two distinct behaviors in the inner flow and outer flow, corresponding to two highly anisotropic turbulent structures, LSMs and VLSMs. This results in particle inertia's non-monotonic effects on the VLSMs: low inertia (ba"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04339","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":""},"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":"1811.04339","created_at":"2026-05-17T23:53:50.202747+00:00"},{"alias_kind":"arxiv_version","alias_value":"1811.04339v2","created_at":"2026-05-17T23:53:50.202747+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04339","created_at":"2026-05-17T23:53:50.202747+00:00"},{"alias_kind":"pith_short_12","alias_value":"DGTH5IURHRVI","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_16","alias_value":"DGTH5IURHRVIGPSG","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_8","alias_value":"DGTH5IUR","created_at":"2026-05-18T12:32:19.392346+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/DGTH5IURHRVIGPSGF56RFDAHUY","json":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY.json","graph_json":"https://pith.science/api/pith-number/DGTH5IURHRVIGPSGF56RFDAHUY/graph.json","events_json":"https://pith.science/api/pith-number/DGTH5IURHRVIGPSGF56RFDAHUY/events.json","paper":"https://pith.science/paper/DGTH5IUR"},"agent_actions":{"view_html":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY","download_json":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY.json","view_paper":"https://pith.science/paper/DGTH5IUR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1811.04339&json=true","fetch_graph":"https://pith.science/api/pith-number/DGTH5IURHRVIGPSGF56RFDAHUY/graph.json","fetch_events":"https://pith.science/api/pith-number/DGTH5IURHRVIGPSGF56RFDAHUY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY/action/storage_attestation","attest_author":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY/action/author_attestation","sign_citation":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY/action/citation_signature","submit_replication":"https://pith.science/pith/DGTH5IURHRVIGPSGF56RFDAHUY/action/replication_record"}},"created_at":"2026-05-17T23:53:50.202747+00:00","updated_at":"2026-05-17T23:53:50.202747+00:00"}