Numerical analysis of temperature characteristics and surrounding flow field of power cable along the bridge

Power cable simulation is of great significance to the construction of engineering projects. The specific simulation process generally needs to include the surrounding environment to realize the accurate simulation of the power cable itself. In this paper, Fluent is used to simulate the power cable, the surrounding flow field and part of the bridge. The results show that the increase of wind speed can enhance the heat dissipation process of power cables, but the relationship between the wind speed and the maximum load current is not linear. At the same time, the ambient temperature will also have an impact on the final temperature of the power cable. Usually, the rise in ambient temperature will directly affect the temperature of the conductor. Therefore, in order to ensure that the conductor temperature of the power cable is less than or equal to 363K during long-term operation, after considering the influence of environmental factors and load current fluctuations, the maximum load current should be properly adjusted to prolong the life of the power cable.