An experimental investigation of jet flow on a stepped chute
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
In this paper we report on the results from an experimental study conducted to investigate the properties of the turbulent two-phase flow that occurs on a stepped chute in the jet flow regime. Simultaneous measurements of the void fraction, bubble sizes and bubble velocities were made using a fiber-optic probe. The flow was found to be fully developed by the twelfth step and as expected the head loss along the step was found to be equal to the step height. When the discharge was increased by 40% the average void fraction decreased by 8%, the depth of flow decreases by 9% and the mean velocity increased by 17%. Estimates of the turbulence intensity were computed using the mean and RMS bubble velocities. The turbulence was found to be very intense with values of the turbulence intensity varying from approximately 0.25 to 0.6. A strong negative correlation was observed between the turbulence intensity and the average bubble diameter, i.e., higher turbulence intensities produced smaller bubbles. Hinze's (J. AlChe. 1, 1955, 289) theory was used to show that Reynolds stresses are responsible for the break-up of bubbles and that the magnitudes of the observed values of the turbulence intensity were consistent with the observed bubble sizes.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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 | 0.001 |
| 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 it