{"id":"W2161064845","doi":"10.1017/jfm.2015.14","title":"Optimal nonlinear eddy viscosity in Galerkin models of turbulent flows","year":2015,"lang":"en","type":"article","venue":"Journal of Fluid Mechanics","topic":"Model Reduction and Neural Networks","field":"Physics and Astronomy","cited_by":54,"is_retracted":false,"has_abstract":true,"ca_institutions":"McMaster University","funders":"","keywords":"Ansatz; Vorticity; Turbulence modeling; Nonlinear system; Turbulence; Flow (mathematics); Galerkin method; Large eddy simulation; Mean flow; Wake","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004276577,0.0001154789,0.0003022471,0.0001022298,0.00001757595,0.00001408332,0.0001728607,0.00004956303,0.00006134224],"category_scores_gemma":[0.000004980745,0.00009746444,0.0001575026,0.0001332823,0.000007595137,0.0002212166,0.00004010994,0.0002938157,0.000003185989],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004006221,"about_ca_system_score_gemma":0.0001396727,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001885667,"about_ca_topic_score_gemma":0.000001152035,"domain_scores_codex":[0.9988608,0.00005312529,0.0005183784,0.00009900897,0.0003020487,0.0001666103],"domain_scores_gemma":[0.9991814,0.00001447064,0.0002784397,0.0001312123,0.0002291429,0.000165333],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0001838531,0.0003664538,0.00003056678,0.00000709299,0.0000459586,0.00001158367,0.0002848168,0.9805737,0.006564079,0.007311628,0.001884516,0.002735769],"study_design_scores_gemma":[0.0009521417,0.0002057755,0.00000245667,0.00005422341,0.00002338555,0.00002284383,0.0002144295,0.9813524,0.01177918,0.004556753,0.0007415632,0.00009487921],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7398806,0.0002026468,0.2588888,0.000202754,0.0004957087,0.00008556344,0.000005866699,0.000003879215,0.0002342733],"genre_scores_gemma":[0.9867631,0.00003851789,0.01257359,0.00003359172,0.0005182095,0.00000112706,0.000002676924,0.00001243891,0.00005670699],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2468826,"threshold_uncertainty_score":0.3974484,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03525864851009523,"score_gpt":0.2626142500299329,"score_spread":0.2273556015198377,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}