| Popis: |
A relative full-scale numerical simulation has been conducted on oscillating heat pipe(OHP) with single passageway(S-OHP)and double passageway(D-OHP). Mathematical model for studying the influence on the heat transfer performance of the number of passageway was built, including turbulence model, volume of fluid model, continue surface force model, and heat and mass transfer model caused by phase change, and all of which were based on the consideration of gas-liquid interface, wall adhesion angle, surface tension and process of phase change. Results showed that, on the one hand, strong coherence of the initial gas-liquid distribution, as well as the flow phenomena during boiling stage, were found between S-OHP and D-OHP, on the other hand, the heat-transfer capability of the D-OHP is slightly higher than the S-OHP. |
