Supersonic Tests of the Double Gap Disk-Gap Band Parachute and Fluid Structure Interaction Simulation
Bibliographic record
Abstract
The ESA Aerodynamics of Download Systems: Parachutes activity expands the knowledge of parachute inflation and flying characteristics in supersonic flows. Model DiskGap-Band (DGB) parachutes were tested in the CNRC 1.5m by 1.5m Tri-sonic wind tunnel in Ottawa, Canada. The tests gathered data on inflation, drag and general flight stability at Mach numbers of 1.6, 1.8, 2.0 and 2.25 in the wake of a probe of similar configuration to Stardust. The parachute models, with diameters of 1.5 and 3.0 times the probe diameter, were flown at trailing distances from 7.5 to 10.5 forebody diameters. Parachute forces were measured and visual data obtained using high speed video and Schlieren. The results of FSI simulations used to reconstruct one of the CNRC tests are presented. Finally, the results are compared to those obtained within a supersonic wind tunnel test campaign of the same parachute design conducted at the 10’ x 10’ NASA Glenn tunnel.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".