Simulation of Turbulent Flow Around a Surface-Mounted Finite Square Cylinder
Bibliographic record
Abstract
Numerical investigation of turbulent flow around a surface-mounted square cylinder of aspect ratio is presented in this paper. The aims are to get detailed information about the flow structures around such a cylinder and to establish a suitable turbulent model that could yield accurate and reliable results for practical industrial applications. Calculations were performed at Reynolds number of 13041 using a Reynolds stress model. The present simulation has successfully reproduced the primary flow, as well as the three-dimensional large-scale vortex structure in the wake of this finite wall-mounted body. The existence of a spanwise vortex, tip vortex, and horseshoe vortex is consistent with previous experimental studies. The half-loop shed structure observed in the previous experimental study has been clearly captured in the isosurface of the instantaneous second invariant of the velocity gradient. Furthermore, the evolution of the vertical vorticity fields in the wake is presented with details at middle span , and the Strouhal number estimated from flow visualization is 0.1, which not only equals to the value obtained by statistical analysis of the streamwise drag coefficient, but also perfectly matches with the value obtained by the previous experimental study carried out under a similar flow condition with the same geometry.
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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".