自然通风冷却塔的塔外流场,对了解冷却塔的运行特性是很重要的,但至今这方面的资料很少,尤其是多个塔时。本文利用边界元法计算了两个及三个塔时的塔外流场,给出了几个典型流面上的流速势φ,进而可以求出流线及流速。此外,对计算方法进行了一些探讨。 It is important to understand the operating characteristics of a cooling tower. However, little information has so far been available on this area, especially when using multiple towers. In this paper, the boundary element method was used to calculate the tower external flow field when two or three towers were used. The flow velocity potential φ on several typical flow surfaces was given, and the flow lines and flow velocities were obtained. In addition, some calculation methods are discussed.