在一个大气风洞中测量了烟囱排出物的扩散，该风洞的边界层代表了一种轻微不稳定的大气。风洞试验包括从隧道中的烟囱中释放乙烷示踪气体，测量水平和垂直浓度分布，以及烟囱下风约1000英尺（600米）处的地面浓度分布。浓度测量的结果显示，在大多数情况下，数值与高斯色散模型预测的数值非常吻合，然而，在存在复杂表面条件的情况下，风洞结果与高斯模型结果不同。风洞结果被认为更能代表全尺寸情况，因为风洞是特定于现场的，并自动考虑独特而复杂的边界条件。风洞试验结果也与完整的试验结果进行了比较- 地面浓度数据可用的比例尺案例。关键词:风洞、废气、烟道、测量、测试、示踪剂、含量、烟囱效应、水平、垂直、比较、管道烟囱、实验室简介:研讨会、ASHRAE Trans。1991年，第97卷，第2部分

The dispersion of effluent from a stack was measured in an atmospheric wind tunnel whose boundary layer was representative of a slightly unstable atmosphere. Wind-tunnel tests consisted of releasing an ethane tracer gas from the stack in the tunnel and measuring horizontal and vertical concentration profiles as well as ground-level concentration profiles to "full-scale distances" of about 1,000 ft (600 m) downwind of the stack. Results of the concentration measurements show values that agree favourably with those predicted by Gaussian dispersion models in most cases, however, where complex surface conditions existed, wind-tunnel results differed from Gaussian model results. The wind-tunnel results are thought to be more representative of the full-scale situation, since the tunnel is site specific and automatically accounts for unique and complex boundary conditions. The wind-tunnel results also were favourably compared to a full-scale case for which ground-level concentration data were available.KEYWORDS: wind tunnels, exhaust gases, flues, measuring, testing, tracers, content, stack effect, horizontal, vertical, comparing, pipe stacks, laboratories