{"id":"W4211223785","doi":"10.32920/ryerson.14655753","title":"Performance Trends For Aerospikes & Supersonic Nozzles With Center-Bodies","year":2021,"lang":"en","type":"preprint","venue":"","topic":"Gas Dynamics and Kinetic Theory","field":"Mathematics","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"Toronto Metropolitan University","funders":"","keywords":"Nozzle; Conical surface; Supersonic speed; Specific impulse; Mechanics; Fluent; Impulse (physics); Discharge coefficient; Mass flow rate; Mass flow; Inlet; Computational fluid dynamics; Structural engineering; Chemistry; Aerospace engineering; Mechanical engineering; Thrust; Engineering; Physics; Classical mechanics","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":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0002327151,0.0004144402,0.0005858696,0.0001195882,0.0001084526,0.000155754,0.0003488454,0.0002253736,0.0003619224],"category_scores_gemma":[0.0000544467,0.0003069339,0.0002468419,0.00005619216,0.0001009874,0.00005112437,0.0003723631,0.0003246593,0.000005115611],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00006177663,"about_ca_system_score_gemma":0.00009051065,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00002371327,"about_ca_topic_score_gemma":0.001189675,"domain_scores_codex":[0.9984813,0.00003016206,0.0003404587,0.0005250497,0.0002272734,0.0003957503],"domain_scores_gemma":[0.9986134,0.0001855181,0.000167858,0.0007782505,0.0001783894,0.00007664177],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.002214937,0.0079639,0.08496571,0.04847507,0.008418459,0.00009231623,0.05968011,0.004432703,0.002039567,0.6287743,0.04045609,0.1124868],"study_design_scores_gemma":[0.03905829,0.00678827,0.04705727,0.03111773,0.009225622,0.001224416,0.03597139,0.1746648,0.01132451,0.4880869,0.1275536,0.02792725],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9648147,0.0001705633,0.01888631,0.0004185837,0.0004150528,0.0003541462,0.0001170877,0.0001749707,0.0146486],"genre_scores_gemma":[0.8289732,0.0002327723,0.1395635,0.00006159288,0.0001418929,0.000209084,0.0003009014,0.00009429082,0.03042269],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1702321,"threshold_uncertainty_score":0.9999382,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04713682440859632,"score_gpt":0.29525067317584,"score_spread":0.2481138487672437,"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."}}