提出了一个数值模拟模型，可以评估各种设计参数对窗户热性能的影响。该模型适用于二维、组合的传导、对流和辐射热传递，并确定窗口的速度剖面、温度、热通量和U系数。窗户由两块玻璃窗、两块装有气体的玻璃板之间的空间和一扇窗扇组成。报告了气体类型、玻璃板之间的间距、一块玻璃板上的低发射率涂层、窗扇设计、包层带以及玻璃板之间水平杆和垂直隔板的影响。将其与一个- 维度模型。该模型的结果提供了窗户热性能的更详细图片，并提出了提高窗户热性能的设计方案。关键词:模型，计算，窗户，热流，性能，设计，传导，对流，太阳辐射，分析，透射率，双层玻璃。引用:研讨会，ASHRAE Trans。，1993年，第99卷，第2部分，论文编号DE-93-1-1429-439，图7，表2，参考文献。

Presents a numerical simulation model that allows the impact of various design parameters on the thermal performance of windows to be evaluated. The model is for two-dimensional, combined conductive, convective, and radiative heat transfer and determines velocity profiles, temperatures, heat fluxes, and U-factors for the window. The window consists of two glass panes, a space between the glass panels containing a gas, and a sash. The effects of gas type, spacing between the glass panels, a low-emittance coating on one glass pane, sash designs, cladding strips, and between-glass-panels horizontal bar and vertical partition are reported. Comparisons are made to a one-dimensional model. Results from the model provide a more detailed picture of the thermal performance of a window and suggest design options that enhance the thermal performance of a window.KEYWORDS: models, calculating, windows, heat flow, performance, designing, conduction, convection, solar radiation, analysis, transmittance, double glazing.