{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:R447QP2UQGDDE77TFUTN2MVZZX","short_pith_number":"pith:R447QP2U","schema_version":"1.0","canonical_sha256":"8f39f83f548186327ff32d26dd32b9cdf5e4b28ef470564397e37fcb9080d8da","source":{"kind":"arxiv","id":"1003.4895","version":2},"attestation_state":"computed","paper":{"title":"Polymer rheology simulations at the meso- and macroscopic scale","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","physics.class-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Alexander N. Morozov (INSTITUUT LORENTZ, Ellak Somfai (INSTITUUT LORENTZ), Eric Sultan (INSTITUUT LORENTZ, FAST), Jan-Willem Van De Meent (INSTITUUT LORENTZ), JCMB), Wim Van Saarloos (INSTITUUT LORENTZ)","submitted_at":"2010-03-25T14:05:11Z","abstract_excerpt":"We show that simulations of polymer rheology at a fluctuating mesoscopic scale and at the macroscopic scale where flow instabilities occur can be achieved at the same time with dissipative particle dynamics (DPD) technique.} We model the visco-elasticity of polymer liquids by introducing a finite fraction of dumbbells in the standard DPD fluid. The stretching and tumbling statistics of these dumbbells is in agreement with what is known for isolated polymers in shear flows. At the same time, the model exhibits behaviour reminiscent of drag reduction in the turbulent state: as the polymer fracti"},"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":"1003.4895","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2010-03-25T14:05:11Z","cross_cats_sorted":["cond-mat.soft","physics.class-ph"],"title_canon_sha256":"1b8d529c9cfc076779c106f6d737b0208494d9b44675ad41f381476a93a0e78d","abstract_canon_sha256":"fe198fba6a2197f0fcfdb0ed55f8a36366f2ed80accd6ed7f1cb49940daa830b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:23.055514Z","signature_b64":"T65h7bOgJfgfSOHFlWFB/YV6/b0FrIy3FrNr2dxJGBnZG7LLGw6q1cM1mXxJSKA/Zj20RSsbb4vUjE+9tQK3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f39f83f548186327ff32d26dd32b9cdf5e4b28ef470564397e37fcb9080d8da","last_reissued_at":"2026-05-18T02:08:23.054744Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:23.054744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Polymer rheology simulations at the meso- and macroscopic scale","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft","physics.class-ph"],"primary_cat":"physics.flu-dyn","authors_text":"Alexander N. Morozov (INSTITUUT LORENTZ, Ellak Somfai (INSTITUUT LORENTZ), Eric Sultan (INSTITUUT LORENTZ, FAST), Jan-Willem Van De Meent (INSTITUUT LORENTZ), JCMB), Wim Van Saarloos (INSTITUUT LORENTZ)","submitted_at":"2010-03-25T14:05:11Z","abstract_excerpt":"We show that simulations of polymer rheology at a fluctuating mesoscopic scale and at the macroscopic scale where flow instabilities occur can be achieved at the same time with dissipative particle dynamics (DPD) technique.} We model the visco-elasticity of polymer liquids by introducing a finite fraction of dumbbells in the standard DPD fluid. The stretching and tumbling statistics of these dumbbells is in agreement with what is known for isolated polymers in shear flows. At the same time, the model exhibits behaviour reminiscent of drag reduction in the turbulent state: as the polymer fracti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.4895","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":"1003.4895","created_at":"2026-05-18T02:08:23.054876+00:00"},{"alias_kind":"arxiv_version","alias_value":"1003.4895v2","created_at":"2026-05-18T02:08:23.054876+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.4895","created_at":"2026-05-18T02:08:23.054876+00:00"},{"alias_kind":"pith_short_12","alias_value":"R447QP2UQGDD","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_16","alias_value":"R447QP2UQGDDE77T","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_8","alias_value":"R447QP2U","created_at":"2026-05-18T12:26:13.927090+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/R447QP2UQGDDE77TFUTN2MVZZX","json":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX.json","graph_json":"https://pith.science/api/pith-number/R447QP2UQGDDE77TFUTN2MVZZX/graph.json","events_json":"https://pith.science/api/pith-number/R447QP2UQGDDE77TFUTN2MVZZX/events.json","paper":"https://pith.science/paper/R447QP2U"},"agent_actions":{"view_html":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX","download_json":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX.json","view_paper":"https://pith.science/paper/R447QP2U","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1003.4895&json=true","fetch_graph":"https://pith.science/api/pith-number/R447QP2UQGDDE77TFUTN2MVZZX/graph.json","fetch_events":"https://pith.science/api/pith-number/R447QP2UQGDDE77TFUTN2MVZZX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX/action/storage_attestation","attest_author":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX/action/author_attestation","sign_citation":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX/action/citation_signature","submit_replication":"https://pith.science/pith/R447QP2UQGDDE77TFUTN2MVZZX/action/replication_record"}},"created_at":"2026-05-18T02:08:23.054876+00:00","updated_at":"2026-05-18T02:08:23.054876+00:00"}