Flow Boiling Characteristics in Expanding Type Structured Heat Sinks for Different Roles of Gravitational Force
Bibliographic record
Abstract
The orientation of the devices that must be cooled can change depending on the application requirements.Orientation-based variations can influence the physical mechanism regarding the coolers.Therefore, here, saturated flow boiling in the structured (expanding micro pin-finned with staggered array) micro heat sink is investigated under different angles.Positive and negative orientation of the heat sink have influence on the possible contribution of the gravitational effects.Experimental range includes three angular positions (+30°, 0°, -30°), two mass velocities (G=105 and 210 kg m -2 s -1 ) and a large heat flux interval (194 -366 kW m -2 ).Inlet and ambient temperatures are constant at approximately Ti = 73°C and Ta = 24°C, respectively.It is concluded that optimum thermal performance is got for the horizontal orientation (0°) for both the mass flux values.The wetting process as well as balance of the gravitational force (related to liquid flow) and buoyancy force (related to the vapor flow) plays a key role on the thermal performance.Both the relevant forces are related to inclination angle.The pressure drop at the condition of ϕ = 0° is relatively higher than those of the others (ϕ = +30° and -30°).
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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".