@Article{cmes.2026.086398,
AUTHOR = {Tianyu Song, Zeshuai Chen, Qian Chen, Ruiliang Wang, Congbo Zheng, Di Tang, Wenxi Shi, Lang Xu},
TITLE = {Influence of Gas-Liquid Two-Phase Flow on Flow-Induced Vibration of Cylindrical Heat Exchange Tubes in Wind Turbine Heat Exchangers},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {},
YEAR = {},
NUMBER = {},
PAGES = {{pages}},
URL = {http://www.techscience.com/CMES/online/detail/28393},
ISSN = {1526-1506},
ABSTRACT = {With the continuous increase in wind turbine capacity, the heat dissipation demands of key components such as converters and generators have become increasingly stringent. As a critical part of wind turbine thermal management systems, the reliability of heat exchangers is closely related to overall system stability. In this study, an efficient CFD–CSD coupling framework combined with a gas–liquid two-phase model was employed to establish a reduced-dimensional modeling approach for investigating the flow-induced vibration of cylindrical heat exchange tubes under cross-flow conditions. The proposed modeling strategy reduces computational complexity while retaining the dominant fluid–structure interaction characteristics, enabling efficient evaluation of vibration responses under different gas–liquid flow conditions. The coupled effects of gas–liquid phase evolution, hydrodynamic loading, flow structures, and structural response were analyzed. The results show that the tube exhibits periodic vibration in both drag and lift directions, while gas–liquid interaction leads to more complex flow structures and modifies the vibration behavior. With increasing void fraction, the drag-direction response decreases, whereas the lift-direction response shows a different variation trend. A transition from dispersed bubble structures to slug-like flow patterns was also observed with increasing gas content. The present study provides insight into the mechanism of gas–liquid two-phase flow-induced vibration and offers an efficient modeling approach for evaluation of heat exchanger vibration characteristics in wind turbine applications.},
DOI = {10.32604/cmes.2026.086398}
}