Numerical Modelling of Non-Equilibrium Condensing Steam Flows
Why this work is in the frame
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Bibliographic record
Abstract
Two-phase condensing flows are very common in many technical applications, such as rotating machinery operating with steam and nuclear reactors. The occurrence of condensation can lead to a degradation of a component's performance. Thus, the physical understanding and accurate numerical modeling of the condensation process can be of great help in the design process. The present work is focused on the numerical modeling of non-equilibrium condensing steam flows in 1-D Laval nozzles. The fluid dynamic equations for an inviscid and adiabatic flow (Euler equations) are solved using a quasi-1-D finite volume code, which accounts for the nozzle area variation. The model for homogeneous nucleation and the droplet growth rate in high-speed supersonic nozzle flow and also applicable to the wet stages of a steam turbine, is implemented in the present work. In order to assess the accuracy of the condensation model implemented, experimental data of various 1-D supersonic nozzle is compared to the numerical results.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| 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