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首页> 外文会议>Proceedings of building simulation 2003: proceedings of eighth IBPSA conference and exhibition >Computational and Experimental Reduced-Scale Modelling of Air-Conditioned RoomsCOMPUTATIONAL AND EXPERIMENTAL REDUCED-SCALE MODELLING OF AIR-CONDITIONED ROOMS
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Computational and Experimental Reduced-Scale Modelling of Air-Conditioned RoomsCOMPUTATIONAL AND EXPERIMENTAL REDUCED-SCALE MODELLING OF AIR-CONDITIONED ROOMS

机译：空调房间的计算和实验缩减模型空调房间的计算和实验降尺度模型

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摘要

An improper air distribution within air-conditionedrnrooms is one of the largest causes of inadequaternindoor air quality and thermal comfort. A goodrnknowledge of the phenomena allows for the advancernof eventual deficiencies, thus becoming a powerfulrntool for the optimization of new projects or for thernimprovement of the operation conditions of thernprojects already implemented.rnIn this study two methods were applied, onerncomputational and the other experimental, forrnmodelling of non-isothermal turbulent flows in airconditionedrnrooms. The computational modelrnconsists of a numerical procedure, which solves inrnfinite-difference form using a control volumerntechnique, the three-dimensional time-averagedrnequations expressing the conservation of mass,rnmomentum, energy and concentration of species. Thernturbulence is modelled by the k-ε model and thermalrnradiation by the discrete transfer method. Thernexperimental validation was accomplished throughrncomparison of the numerical predictions withrnmeasurements obtained in a laboratory model,rndesigned to provide similarity with the real room. Therngood agreement obtained suggests a good accuracyrnfor engineering purposes. A simple physicalrnmodelling technique, based on dimensional analysis,rnwas used to derive the physical properties of thernexperimental (reduced) model. The simulation of thernhumidity, the thermal and air flow patterns in a forcedrnventilated cooling room was performed.
机译：空调室内的空气分配不当是室内空气质量和热舒适性不足的最大原因之一。对现象的充分了解将导致最终的缺陷，从而成为优化新项目或改善已经实施的项目的运行条件的有力工具。空调室中的非等温湍流。该计算模型由一个数值程序组成，该程序使用控制体积技术求解无限差分形式，该三维时间平均方程表示质量，动量，能量和物种浓度的守恒。通过k-ε模型对湍流进行建模，并通过离散传递方法对热辐射进行建模。实验验证是通过将数值预测与实验室模型中获得的测量值进行比较来完成的，设计目的是提供与真实房间的相似性。获得的良好协议表明，出于工程目的，其准确性很高。一种简单的基于物理模型的物理建模技术被用于导出实验（简化）模型的物理特性。对强制通风的冷却室中的湿度，热和空气流动模式进行了模拟。

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