Analysis of water distribution network under pressure deficient conditions throughEmitter Setting
Bibliographic record
Abstract
Abstract. Pressure-driven analysis (PDA) of water distribution networks necessitates assessing the supplying capacity of a network within the minimum and required pressure ranges. Pressure-deficient conditions happen due to the uncertainty of nodal demands, failure of electro-mechanical components, diversion of water, aging of pipes, permanent increase in the demand at certain supply nodes, fire demand etc. As the Demand-driven analysis (DDA) solves the governing equations without any bound on pressure head, it fails to replicate the real scenario particularly when the network experiences pressure deficient situations. Numerous researchers formulated different head-discharge relations and used them iteratively with demand driven software, while some other approaches solve them by incorporating this relation within the analysis algorithms. Several attempts have been made by adding fictitious network elements like reservoirs, check valves, flow control valves, emitters, dummy nodes and pipes of negligible length (i.e., negligible pressure loss), to assess the supplying capability of a network under pressure deficient conditions using demand driven simulation software. This paper illustrates a simple way to assess the supplying capacity of demand nodes under pressure deficient conditions by assigning the respective emitter co-efficient only to those nodes facing pressure deficit condition. The proposed method is tested with three bench-mark networks and it is able to simulate the network without addition of any fictitious network elements or changing the source code of the software like EPANET.
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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".