Design of submerged vane matrices to accompany a river intake in Australia
Bibliographic record
Abstract
This paper focuses on the design of river-based submerged vane matrices in a regional Australian context. The specific study site is proximal to intake screens within the riverbed that experiences continual clogging from sediment deposition. The local authority experiences discontinuous supply to the water-treatment plant owing to a high sediment concentration. Data on the river flow, depth, turbidity and rainfall were collected, and analyses of sediment composition, gradation and density were carried out within this research. Through the study of incipient sediment motion and hydraulics, with specific reference to the method of Shields, the shear stress and critical velocity necessary for sediment motion were determined. The results provided guidance for an iterative modelling design of submerged vanes within the local context ultimately configured as symmetrical diverging vane matrices. Placed a short distance upstream of the existing intake screens at a 30° angle to the river flow direction on two symmetric arms, the three vane arrays generate secondary flow as a function of the existing flow around the vanes. The purpose of the vane matrix is twofold, firstly to redirect sediment away from the existing infiltration galleries and secondly to scour the riverbed within the bounds of the matrices. With a subsequent increase in the depth of water, intake screen(s) placed within and orthogonal to the flow would benefit from an increased depth in combination with a reduction in sediment delivery to the screen(s).
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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".