For valley cities, the high frequency calm and stable weather conditions caused by terrain barrier and temperature inversion will result in very unfavorable diffusion conditions and limited environmental capacity, leading to frequent haze and heat waves. In this case, the interaction of two mesoscale circulations, slope flow and urban heat island circulation, is the basic model of valley urban ventilation, which dominates the dissipation of heat and pollutants in urban areas. At present, some studies have been conducted to understand the above process. In this paper, a critical review of relevant studies has been made from the perspectives of research methods and research contents, respectively. Meanwhile, shortcomings of existing researches will be discussed in order to explore new research directions in the field of valley city ventilation.

对于山谷城市，由于地形障碍和温度反转而导致的高频平静和稳定的天气条件将导致非常不利的扩散条件和有限的环境容量，从而导致频繁的霾和热浪。在这种情况下，斜坡流和城市热岛环流这两种中尺度环流的相互作用是山谷城市通风的基本模型，它支配着城市热量和污染物的消散。目前，已经进行了一些研究以了解上述过程。本文分别从研究方法和研究内容的角度对相关研究进行了评述。同时，将探讨现有研究的不足，以探索山谷城市通风领域的新研究方向。