Characteristics Of Fluctuating Wind Ventilation In Single-sided Ventilated Rooms

With all the energy and environmental awareness, natural ventilation technology is paid more and more attention and application. In architectural design, through careful consideration and clever design people can maximize the use of natural ventilation. In the transition season, can not only meet the interior a certain amount of ventilation rate, but also can fully take the indoor heat load, have a high potential for energy saving.Although the efficiency of Single-sided ventilation is lower than Double-sided ventilation, but this mode of ventilation is very common in real life.In this paper,I studied the theory on the single-side opening pressure ventilation, and made some relevant experiments,and made a comparison of the CFD mode and experiment.Through this study, the following conclusions are drawn:ventilated area, wind speed, wind direction and wind speed fluctuations are closely related to the impact of the ventilation,ventilated area have a greater impact; For dynamic wind, under the conditions set in this experiment, when the cycle is short ventilation effect is lower than the static wind ventilation effect but when the cycle is higher than a certain critical value ventilation effect higher than the static wind. The numerical simulation and experiment is consistent, thus proving the validity of the numerical simulation.This article still exist some inadequacies:due to the limitations of time and experimental conditions, the experimental test conditions are not enough;only discussed the ventilation rate formula, and not revise the formula;because of the time and computer capacity constraints, single opening pressure natural ventilation only stay in qualitative research stage.