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首页> 外文期刊>ASHRAE Transactions >Investigation of Attic Space Airflow and Temperature Distribution Using a Computational Fluid Dynamics Program
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Investigation of Attic Space Airflow and Temperature Distribution Using a Computational Fluid Dynamics Program

机译：使用计算流体力学程序研究阁楼空间的气流和温度分布

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摘要

Our objective is to understand attic space thermal behavior using computational fluid dynamics (CFD). Extensive modeling and CFD simulations have been used to predict the temperature, airflow, and air velocity of unconditioned attic spaces under building cooling and heating and outside weather conditions. The two-dimensional natural convection in isosceles triangular enclosure is investigated for laminar and turbulent flows. The base and inclined walls are kept at constant temperatures. The enclosure is assumed to be filled with viscous, incompressible Newtonian fluid. A comprehensive parametric study has been conducted to study the effect of different parameters, such as the Rayleigh number, attic geometry, and the attic angle on the thermal characteristics of the attic.
机译：我们的目标是使用计算流体力学（CFD）了解阁楼空间的热行为。广泛的建模和CFD模拟已用于预测建筑物制冷和供暖以及外界天气条件下无条件阁楼空间的温度，气流和空气速度。研究了等腰三角形罩壳内的二维自然对流层流和湍流。底壁和倾斜壁保持恒温。假定外壳充满了粘性的，不可压缩的牛顿流体。进行了全面的参数研究，以研究不同参数（例如瑞利数，阁楼几何形状和阁楼角度）对阁楼热特性的影响。

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