Three-dimensional modelling of oil sand multiphase flow in at face slurry system
Bibliographic record
Abstract
Optimisation of both hydraulic transportation efficiency and production costs are a necessity in the extraction of Athabasca oil sand deposits. There is currently a desire to extend hydraulic transport systems to production faces in oil sand mines using a mobile at face slurry system (AFSS). AFSS consists of multiple pipelines connected with flexible joints, a system which creates slurrified minerals from the mining faces for transportation to processing plants. This paper develops mathematic models governing friction loss associated with AFSS. Modelling of slurry flow is conducted using ANSYS-FLUENT. An arrangement of flexible pipe loops imitating the AFSS was set up to test the accuracy of modelling results. For slurry with a specific gravity of 1.44, solid volume fraction of 0.27, and a velocity of 4 m/s, the simulated pressure gradient associated with an AFSS with a diameter of 0.762 m is 220 Pa/m, compared to 158 Pa/m for the existing stationary system. [Received: March 15, 2016; Accepted: July 27, 2016]
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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".