{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:34UIDS4N7VCPNHBQZNMHR554IB","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":"e0f53819d875fe1a5921cb5fab350706cc8e6bb3b2cfb447786540580e270de3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2017-02-01T22:09:45Z","title_canon_sha256":"e3cfc96b6b1b5ca6138b0bd2f8f130084c298906557590914e77c2f4531b9caa"},"schema_version":"1.0","source":{"id":"1702.00475","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.00475","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"arxiv_version","alias_value":"1702.00475v1","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.00475","created_at":"2026-05-18T00:51:33Z"},{"alias_kind":"pith_short_12","alias_value":"34UIDS4N7VCP","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"34UIDS4N7VCPNHBQ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"34UIDS4N","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:7d21f7cf768a503213f50233a43b0268e0d573e52c1e002a439c77cdb452a034","target":"graph","created_at":"2026-05-18T00:51:33Z","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":"We have carried out boundary-layer-resolved, unstructured fully-compressible Navier--Stokes simulations of an ultrasonic standing-wave thermoacoustic engine (TAE) model. The model is constructed as a quarter-wavelength engine, approximately 4 mm by 4 mm in size and operating at 25 kHz, and comprises a thermoacoustic stack and a coin-shaped cavity, a design inspired by Flitcroft and Symko (2013). Thermal and viscous boundary layers (order of 10 $\\mathrm{\\mu}$m) are resolved. Vibrational and rotational molecular relaxation are modeled with an effective bulk viscosity coefficient modifying the vi","authors_text":"Carlo Scalo, Jeffrey Lin, Lambertus Hesselink","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2017-02-01T22:09:45Z","title":"High-fidelity simulation of an ultrasonic standing-wave thermoacoustic engine with bulk viscosity effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.00475","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:c19a7e15284c795ceae48b301424c302e96f876c339d8c3325d36885962652ec","target":"record","created_at":"2026-05-18T00:51:33Z","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":"e0f53819d875fe1a5921cb5fab350706cc8e6bb3b2cfb447786540580e270de3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2017-02-01T22:09:45Z","title_canon_sha256":"e3cfc96b6b1b5ca6138b0bd2f8f130084c298906557590914e77c2f4531b9caa"},"schema_version":"1.0","source":{"id":"1702.00475","kind":"arxiv","version":1}},"canonical_sha256":"df2881cb8dfd44f69c30cb5878f7bc406f0fdc6d18645a7944f1e2f56dd072ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"df2881cb8dfd44f69c30cb5878f7bc406f0fdc6d18645a7944f1e2f56dd072ee","first_computed_at":"2026-05-18T00:51:33.472544Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:33.472544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mHNfRLR7a3w7GGT2GgKNWthIxFDf0IGQHgf9Jg0KGIIj2VhUJQ16PmmXGOc33+KQmkFrYLWuazbwDxR9TLsfDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:33.473089Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.00475","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c19a7e15284c795ceae48b301424c302e96f876c339d8c3325d36885962652ec","sha256:7d21f7cf768a503213f50233a43b0268e0d573e52c1e002a439c77cdb452a034"],"state_sha256":"4ec6f700652f4f0c81fd54441387cb4500c7261107070b58de7135f710aeba48"}