【摘要】 建筑室内空气环境(IAE)与人们的舒适、健康及工作效率密切相关,对其数值模拟与评价具有重要的实际意义。由于室内存在大量离散分布的热源与污染源,IAE表现为复杂的对流传热传质过程,如何有效地利用CFD模拟技术分析与评价IAE即是本文的研究内容。作者根据室内空气环境的特殊性提出了对流传输与自然模拟方法,简洁有效地分析了二维层流置换通风房间中离散热与污染源之间的相互作用及其对IAE的影响。更多还原

【Abstract】 Numerical simulation and assessment of indoor air environment (IAE) are of practicalmeanings for it is directly linked with the health, comfort, and productivity of the occupants. IAE is mainly a complicated process of fluid flow and heat/contaminant transfer due to the discrete heat and contaminant sources indoors, which challenges to the traditional CFD applications. A new method based on the concepts of convective flux transport and natural modeling, was suggested in the present work to numerically analyze the complicated IAE. A two-dimensional laminar displacement ventilated room with discrete heat and contaminant sources was systematically investigated and the results show that the method provides a simple but practical routine to understand IAE.更多还原