空冷塔内外流场的数值分析

采用数值模拟的方法，研究了侧风条件下自然通风空冷塔的运行情况，并参照内蒙丰镇电厂的海勒式空冷系统，做了具体的算例分析，计算结果显示了空冷塔内外流场和热力性能在侧风条件下的变化规律和特点，揭示了散热量下降的主要原因，为改善空冷塔运行的后继研究工作提供了思路。

Numerical Analysis of the Inner and Outer Flow Field of an Air-cooling Tower

With the use of a numerical simulation method the performance of a natural draft air cooling tower working in a cross wind has been investigated. By consulting the Heller type air cooling system employed at Fengzhen Power Plant in Inner Mongolia an analysis was conducted of a specific calculation example. The analytical calculation results bring forth a performance variation relationship and the specific features of the air cooling tower inner and outer flow fields under cross wind operating conditions. By revealing the major cause of the drop in heat dissipation the above work is helpful in providing some new ideas for further improving the cooling air tower performance.