| Autor: |
Yong Jiang, Jian Chen, Shi Zhong Wang, Ai Min Zhou |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Advanced Materials Research. :257-261 |
| ISSN: |
1662-8985 |
| DOI: |
10.4028/www.scientific.net/amr.532-533.257 |
| Popis: |
A numerical simulation has been performed for subcooled boiling process of high pressure liquid. On the basis of two-fluid model, the RPI model is used to calculate the mass transfer on the heating wall between gas-liquid two phases. The results show there is an obvious turning point on wall temperature along with flow direction，which demonstrates the onset point of subcooled boiling according to the variation of wall temperature. The fluid velocity isn’t in linear increase, which increases gradually at first and then increases sharply, which is the similar with that of void fraction. The gas-phase velocity is higher than that of liquid-phase and the difference increases gradually along with flow direction. The variation of two-phase pressure difference is similar with that of single-phase flow, which is mainly the gravity pressure difference. The study results better meet with experimental data, which verifies the accuracy of computational model. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
