Effects of gravity on the thermo-hydrodynamics of moving contact lines
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Bibliographic record
Abstract
In this paper, we demonstrate the effects of gravity on the interfacial thermo-hydrodynamics as modulated by the patterned wettability gradients placed on the surfaces of a narrow fluidic channel. We investigate the dynamics of contact line motion of two-component incompressible immiscible liquid mixtures under the framework of a thermodynamically consistent phase field model. We validate our model with the experimental results available in the literature in the purview of thermocapillary-actuated microscale transport. We show that the gravity-induced forces in the presence of the thermocapillarity effect play a unique role on the interfacial dynamics at small scales, leading to a uniform movement of the interface in the channel, and offer a greater degree of controllability in the filling/wetting rate in the capillary. We show that the change in patch width, placed on the walls of the channel, leads to a change in the filling dynamics into the capillary. Also, we investigate the rate of different dissipations during the movement of the contact line along the channel and show that the kinetic energy modulated dissipation provides maximum energy to the motion of the contact line.
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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 it