A Study on Coupled Simulation System of Heat and Airflow in Outdoor Space for The Computer Aided Design Tool

计算机辅助设计工具室外空间热气流耦合仿真系统研究

• 批准号: 12450233
• 负责人: HOYANO Akira
• 金额: $ 5.06万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12450233/
• 关键词: Outdoor Space; Thermal Environment in outdoor Space; Heat Simulation; Airflow Simulation; Coupled Simulation System of Heat and Airflow; Computer Aided Design System; 3D-CAD; Outdoor Space Design; 3D CAD; 熱収支・気流連成シミュレーション手法

"A Coupled Simulation of Heat Balance Simulation and Numerical Simulation" is expected to be the computer aided design tool in outdoor space. Compared with existing prediction methods, this method places greater emphasis on its ability to make it possible to evaluate thermal radiant environment, air temperature, and wind distribution that are given to the timely prediction in design process. By the use of this coupled simulation method, the micro-climate of Metro Manira's two dwelling areas were studied. It was confirmed that the thermal improvement model was effective for the improvement of thermal radiant environment and airflow environment in outdoor space compared with the standard model of existing urban area, it was also confirmed that the proposed simulation method was effective as the computer aided design tool in outdoor space.The Prediction method of heat balance simulation that is one of main programs of coupled simulation was combined with 3D-CAD system that makes it easily to input the complicated external shape and also make it possible to evaluate the 3-D distribution of surface temperature at any view points. The heat balance simulation was used on trial for thermal problem study of an existing small residence area in Tokyo that is composed of five houses and big crown trees, it was confirmed that the heat balance simulation was so effective as to evaluate the thermal influences that were given by the differences of outdoor space design.

“热平衡模拟与数值模拟耦合模拟”有望成为室外空间计算机辅助设计工具。与现有的预测方法相比，该方法更强调其能够对热辐射环境、气温和风场分布进行评估，从而在设计过程中进行及时预测。利用这种耦合模拟方法，对马尼拉地铁两个居住区的小气候进行了研究。通过与既有城区标准模型的对比分析，证实了热改善模型对改善室外空间热辐射环境和气流环境是有效的，将耦合模拟的主要程序之一的热平衡模拟预测方法与3D-3D热平衡模拟相结合，CAD系统，使它很容易输入复杂的外部形状，也使可能评估的表面温度在任何视点的三维分布。对东京一个由五栋房屋和大树冠树组成的现有小型住宅区进行了热平衡模拟试验研究，证实了热平衡模拟在评估室外空间设计差异所带来的热影响方面是有效的。