Prediction of Cross-ventilation Rate based on Mechanism Analysis of Pressure Loss Generation in Stream Tube inside/outside building

建立了与建筑参数预测“功率损失系数”相吻合的建筑物交叉通风率简化预测模型，作为一种基于流道内能量传输的合理方法。提出了室内流管膨胀和背风口尾流特性两个建筑参数。在每个研究阶段都对CFD分析进行了验证，获得了CFD中湍流模型的通用知识。三维流管的实验识别方法也是新发展起来的。

Simplified prediction model of cross-ventilation rate of buildings was developed according with the prediction of ‘power loss coefficient’ from building parameters, as reasonable way based on the energy transportation inside the stream tube. Two building parameters were proposed such asexpansion of the stream tube inside room and wake characteristics at the leeward openings. Validation of CFD analysis was conducted at each research step and general-use knowledge for turbulence model in CFD was obtained. Identification method of three-dimensional stream tubeby experiments was newly developed as well.