HYDRAULIC BEHAVIOUR OF UNCONVENTIONAL RADIAL PUMP STAGES
Bibliographic record
Abstract
This paper investigates the hydraulic behaviour of unconventional radial pump stages observed utilizing the CFD analyses. The main emphasis was put on the influence of radial pump stage (RPS) geometry on the basic flow direction in the pump regime. In order to preclude defining the flow direction as a boundary condition, a closed hydraulic system was modelled to investigate the hydraulic behaviour of the RPS and its energy characteristics. It was confirmed that centripetal flow through the RPS is possible in the pump regime, but not without the installation of an appropriate stator on the inner rotor radius. The influence of the inner rotor radius stator geometry on the basic flow direction in the pump regime is discussed. The manner of the operation type switching between centripetal and centrifugal pumping achieved with the variation of the hydraulic losses within the closed hydraulic system is explained. In addition to the closed hydraulic system calculations used for investigation of the RPS operation in the pump regime, the open hydraulic system was modelled to determine the energy characteristics of the analysed radial pump stages in other operating regimes. All operating regimes of the important RPS cases are presented by means of four-quadrant charts.
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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 | 0.001 |
| 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".