대공간 실내경기장에서 공조방식에 따른 수치해석

This paper represents the results of prediction of the space air and temperature distribution in a full-scale large gymnasium space by CFD technique. Two cases were selected to improve the large enclosure environment by using the ductless nozzle fan. As one of the results, the present ventilation type which is forced air supply from lateral point with natural thermal stratification in a high ceiling gymnasium tends to build up a layer of hot air under roof. When there in no air motion in this layer, it acts like an heat exchanger which helps the flow of heat to outside rapidly. It will make heat dissipation in winter season. And ductless nozzle fan can enhance the energy conservation in large enclosure like the gymnasium space.