框式玻璃幕墙热工性能的数值模拟方法

Numerical Simulation Method on Thermal Performance of Frame Supported Glass Curtain Walls

研究了框式玻璃幕墙的稳态传热机理和光学性能,运用差分法建立了玻璃体系的传热和光学性能数值计算模型,基于二维稳态热传导理论推导并建立了框体系在对流、辐射等边界条件及其耦合作用下的热工性能有限元计算模型.采用Visual C++和ObjectARX.对AutoCAD进行二次开发,研发了框式玻璃幕墙热工性能计算软件.通过与多种商业软件的计算对比,验证了文中计算理论和数值方法的正确性.

An investigation was made into steady-state heat transfer mechanism and optical properties of frame supported glass curtain walls(FSGCW)are investigated.The differential method was applied to establishing the numerical computation model of the heat transfer and optics performances of glass systems.Based on the two-dimensional steady-state heat transfer theory,the thermal performance finite element model was derived and established for frame systems in boundary conditions of convection,radiation as well as the couple of them.The FSGCW thermal performance analysis software was developed based on the secondary compiling of the AutoCAD using Visual C++and ObjectARX.The proposed theory and numerical method was verified on the basis of a comparative study of various prevailing commercial softwares.