The aim of this research was to investigate the flow pattern around a test room which is used for natural ventilation studies. The test cell effectively represents an in-fill development of a low-rise building located adjacent to high-rise buildings. When considering natural ventilation in a building in such a location it is beneficial to understand the local wind flow patterns resulting from the impact of the surrounding buildings on the prevailing wind conditions.

Pressure pans are often misused, and the information they provide can mislead the inexperienced. Bruce Manclark of Delta-T Incorporated (Eugene, Oregon) and Jeffrey Siegel, formerly of Ecotope Incorporated (Seattle, Washington), investigate how mistakes are made, and share their research into one strategy for more accurate pan readings.