{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:435GSCVS5IR4FA42AQC6TP4CBQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"b00a50db647881d989325277446906643beb93dc67751508e38c8c5e7843bf01","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-15T11:40:20Z","title_canon_sha256":"3b9330029c025ae0ebafaeb40478318aff8b1b497f169e32b26f9ce02ea9bfb5"},"schema_version":"1.0","source":{"id":"1806.05916","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05916","created_at":"2026-05-18T00:01:59Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05916v1","created_at":"2026-05-18T00:01:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05916","created_at":"2026-05-18T00:01:59Z"},{"alias_kind":"pith_short_12","alias_value":"435GSCVS5IR4","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"435GSCVS5IR4FA42","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"435GSCVS","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:37f6ccec062007cd42e793a53d003b9660a1ce6f52524b41469a21a68115f1c3","target":"graph","created_at":"2026-05-18T00:01:59Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"In this paper we employ renormalized viscosity and thermal diffusivity to construct a subgrid-scale model for large eddy simulation (LES) of turbulent thermal convection. For LES, we add $\\nu_\\mathrm{ren} \\propto \\Pi_u^{1/3} (\\pi/\\Delta)^{-1/3}$ to the kinematic viscosity; here $\\Pi_u$ is the turbulent kinetic energy flux, and $\\Delta$ is the grid spacing. In our model, the turbulent Prandtl number is unity. We performed LES of turbulent thermal convection on a $128^3$ grid and compare the results with direct numerical simulation (DNS) on a $512^3$ grid. There is a good agreement between the L","authors_text":"Mahendra K. Verma, Sumit Vashishtha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-15T11:40:20Z","title":"Large eddy simulations of turbulent thermal convection using renormalized viscosity and thermal diffusivity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05916","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:6b6db10690488da640db09a9384d998ce98ea43d067b8ad84db34fa93c9cd956","target":"record","created_at":"2026-05-18T00:01:59Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"b00a50db647881d989325277446906643beb93dc67751508e38c8c5e7843bf01","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-06-15T11:40:20Z","title_canon_sha256":"3b9330029c025ae0ebafaeb40478318aff8b1b497f169e32b26f9ce02ea9bfb5"},"schema_version":"1.0","source":{"id":"1806.05916","kind":"arxiv","version":1}},"canonical_sha256":"e6fa690ab2ea23c2839a0405e9bf820c2f2ff6e79e5b3c5cd7cbe6689d50619f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6fa690ab2ea23c2839a0405e9bf820c2f2ff6e79e5b3c5cd7cbe6689d50619f","first_computed_at":"2026-05-18T00:01:59.036286Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:59.036286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yEWCjk/m1qnCQazRE0gwho/QRSlJB5U+151U6e23ahNb12QGjXI3MdX3W056bPKL8ncXtwKZUojO6Hg8dcPCBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:59.036798Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.05916","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b6db10690488da640db09a9384d998ce98ea43d067b8ad84db34fa93c9cd956","sha256:37f6ccec062007cd42e793a53d003b9660a1ce6f52524b41469a21a68115f1c3"],"state_sha256":"a861a2fc47186bb38385d2f97d8e8a3c4afb6eaf3ccd61c5b0e362d1d0af3eca"}