Simulation Of Outdoor And Indoor Wind Environment For Spherical Cap Type Conjoined Building

Nowadays, building wind environment has begun to impact the people’s quality oflife and personal safety, the wind environment consists of building indoor environmentand outdoor wind environment. Poor outdoor architectural wind environment directlyaffected by the formation of vortex near the building surfaces and corners, resulting inairflow obstruction buildings in some areas.Pollutants and heat diffusion can not beobtained, the personal safety of outdoor trips will therefore be directly affected.At thesame time, architectural outdoor environment will directly affect the construction ofwind energy. On the other hand, building indoor wind environment (natural ventilation)is an effective way to improve indoor air quality and reduce building energyconsumption. Therefore, in this background，this paper mainly research how to adjustthe design and layout of the building itself for improving the outdoor air environment inthe design stage of spherical cap type conjoined building.Firstly, in the basis of determining the reasonable boundary conditions andturbulence models，this paper has analyzed the different factors of outdoor windenvironment for spherical cap type conjoined building. They are seasonal, space ofconjoined building and the angle of dominant wind direction and building (windazimuth). Considering the coupling relationship between these factors and settingdifferent conditions for numerical simulation, then we can analyze the windcharacteristics of conjoined building, pressure distribution and personnel comfortthrough simulation results. As a result, we can get a reasonable pitch and azimuth range.Secondly, under the premise of reasonable outdoor wind environment simulation results, find the relatively weakest floor for natural ventilation of the spherical cap typeconjoined building. Then, research on this floor through simulation, so we can get thenatural ventilation, air ventilation frequency and air distribution in the staff work area ofthis floor.Eventually, through a comprehensive analysis of indoor and outdoor air environmentabout the spherical cap type conjoined building, author establishes the best designlayout scheme-spaced7.5m, wind azimuth range of90°~125°.Also for the futuresuch building design which provides a reasonable and scientific reference basis.