Investigation of velocity and turbulence measurement techniques for riverine hydrokinetic turbine sites
Bibliographic record
Abstract
Multiple flow devices, techniques, procedures, and approaches are tested and validated to characterize the velocity, turbulence, and length-scales of high-velocity riverine sites for distributed hydrokinetic turbine applications. Measurements are performed at the Canadian Hydrokinetic Turbine Testing Center located on the Winnipeg River. Devices tested include the acoustic Doppler velocimeter (ADV), acoustic Doppler current profiler (ADCP) and the shear probe. ADV and ADCP streamwise mean time-averaged velocity measurements agree within an average of 4.38% difference. These velocity profiles are affected by upstream turbine wakes. In contrast, turbulence intensities differ to a larger degree between the ADCP, ADV, and shear probe. The average percent difference in turbulence intensity between ADV and ADCP is observed to be 30%. In the ADV results, vortex shedding suppression is suspected when the ADV is in the wake of an underwater turbine. Finally, the shear probe measured micro-turbulence scale and cannot capture macro-turbulence.
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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".