ERIES-Pollutant Reintroduction Investigation for Occupational Risk Reduction - a Benchmark

A series of experiments was conducted in the closed-circuit Atmospheric Boundary Layer Wind Tunnel at Eindhoven University of Technology, involving a building model at a reduced geometric scale of 1:40. The building model includes a working single-flow mechanical ventilation system and a pollutant source above the roof. The aim of this test was to provide an experimental benchmark to quantify pollutant re-introduction due to both building ventilation and atmospheric wind effects. The steady-state normalized pollutant concentration at the exhaust ventilation fan was measured for 13 reference wind directions (0°, 15°, 30°, 45°, 50°, 60°, 75°, 90°, 135°, 180°, 225°, 270° and 315°) and 3 reference wind speeds (6.4 m/s, 9.0 m/s and 11.1 m/s), leading to 39 wind conditions. For the two most critical scenarios, an internal mapping of the normalized pollutant concentration was conducted on a 3x3x3 grid inside the building. For one wind condition, the normalized pollutant concentration was measured at each of the 40 ventilation air inlets of the building model. In the framework of occupational risk control, these data can be used first to better understand the dynamics of pollutant dispersion around and into a ventilated building, then to assess corresponding numerical simulations.<br>In addition to the Metadata report, raw data time series of pollutant concentrations as well as appraoch flow conditions, and ambient conditions for the conducted measurements are provided here.

本数据集基于埃因霍温理工大学（Eindhoven University of Technology）的闭路式大气边界层风洞（Atmospheric Boundary Layer Wind Tunnel）开展了一系列实验，实验采用几何缩尺比为1:40的建筑模型。该建筑模型配备了一套运行中的单流机械通风系统与屋顶上方的污染物释放源。
本实验旨在构建一套实验基准，以量化由建筑通风与大气风场共同作用引发的污染物再引入现象。实验针对13个参考风向（0°、15°、30°、45°、50°、60°、75°、90°、135°、180°、225°、270°与315°）与3个参考风速（6.4 m/s、9.0 m/s及11.1 m/s），测量了排风通风机处的稳态归一化污染物浓度，共计39种风况组合。针对两种最关键的试验工况，研究团队在建筑模型内部的3×3×3网格节点上完成了归一化污染物浓度的空间分布测绘。针对某一种风况组合，实验还在建筑模型的40个通风进气口处分别测量了归一化污染物浓度。在职业风险防控的研究框架下，本数据集可首先用于深入理解通风建筑周围及内部的污染物扩散动力学特性，继而用于评估对应数值模拟的可靠性。
除元数据（Metadata）报告外，本数据集还提供了本次实验测得的污染物浓度原始时序数据、来流流场条件与环境工况数据。