由于下送风方案可以减小能耗、降低噪音，天桥剧场观众厅池座拟采用下送风方案。本文对天桥剧场观众厅池座部分采用椅背送风时的效果进行了模拟计算。计算工况包括不同的送风温度和不同的诱导比。数值计算结果表明：采用椅背送风，观众身体周围的风速分布合理，头部、躯干和大腿处的温度合理，不会对观众造成吹风感或闷热的感觉。当诱导比增大时，送风气流作用的范围增大，人体周围的温度场更加均匀；当送风温差减少时，人体周围的温度场更加均匀 Due to the lower air supply scheme can reduce energy consumption and reduce noise, Skywalk Theater Auditorium pool seat to be used under the air supply program. This article simulates the effect of the backrest air supply in the pool seat of the auditorium of the bridge theater. Calculation conditions include different supply air temperature and different induction ratio. The numerical results show that the use of back air supply, the distribution of wind around the audience is reasonable, the head, torso and thighs at a reasonable temperature, will not cause the audience a sense of hair blowing or hot. When the induction ratio increases, the scope of the supply air flow increases, the temperature field around the body more uniform; when the supply air temperature decreases, the temperature field around the body more uniform