Abstract
The droplet injection experiments to be performed in a 7×7 rod bundle heat transfer test facility are being simulated using an advanced thermal hydraulics computer code called COBRA-TF, A current version of the code, which provides a three-dimensional, two-fluid, three-field representation of the two-phase flow, is modified to facilitate the simulation of the droplet field produced by the injection system in the test facility. The liquid phase is split into a continuous liquid field and droplet field where a separate momentum and mass equation is solved for each field, with the effects of spacer grids being properly accounted for. Pre-test analyses using the modified COBRA-TF code have been conducted for different injection conditions. Results indicate that there are specific ranges of conditions that can be simulated within the facility constraints to provide for validation of the dispersed flow film boiling models. The numerical results also show important effects of the spacer grids on the local heat transfer in the dispersed flow film boiling regime.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 265-271 |
| Number of pages | 7 |
| Journal | American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD |
| Volume | 369 |
| Issue number | 2 |
| State | Published - 2001 |
| Event | 2001 ASME International Mechanical Engineering Congress and Exposition - New York, NY, United States Duration: Nov 11 2001 → Nov 16 2001 |
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Fluid Flow and Transfer Processes