CAJ | 학술논문

通过对百叶风口非等温射流数值模拟分析,研究浮力通量分别对射流轴心偏移、轴心速度衰减及冷风沉降的影响.研究表明,浮力通量会在一定程度上使射流轴心发生偏移;浮力通量基本不改变轴心速度衰减趋势,但会加快轴心速度衰减;由于浮力通量的影响,空调房间会产生冷风沉降现象,大温差小风速送风尤其明显.
통과대백협풍구비등온사류수치모의분석,연구부력통량분별대사류축심편이、축심속도쇠감급랭풍침강적영향.연구표명,부력통량회재일정정도상사사류축심발생편이;부력통량기본불개변축심속도쇠감추세,단회가쾌축심속도쇠감;유우부력통량적영향,공조방간회산생랭풍침강현상,대온차소풍속송풍우기명현.
Through analyzing numerical simulation about shutter tuyere non-isothermal Jets , the influence of buoy-ancy flux was studied in axis offset, axial velocity attenuation and the settlement of cold wind. The conclusion is that buoyancy flux promotes axis offset to a certain extent; buoyancy flux does not substantially change the axial ve-locity attenuation trend, but speeds up axial velocity attenuation; due to the buoyancy flux, air-conditioned room has settlement of cold wind, especially when temperature difference is sharp and the wind speed is small.