Application to the environmental design of the unsteady analysis technique of an indoor air flow and thermal environment

室内气流与热环境非稳态分析技术在环境设计中的应用

• 批准号: 15360314
• 负责人: MATUSO You
• 金额: $ 9.66万
• 依托单位: Meiji University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15360314/
• 关键词: Unsteady analysis; CFD analysis; Movable Nozzle-type Supply Air Outlets; Calculation stability; LES; Non isothermal air flow; Ventilation; Durbin model; 可動吹出しノズル

In this research organization, research on the real phenomenon reproducibility by using the unsteady CFD analysis technique was done for the purpose of the application to the next-generation environmental design of the analysis technique for air flow and thermal environment. Before dealing with an unsteady phenomenon, accuracy of CFD analysis was mainly verified in 2003. The accuracy of CFD analysis was verified following the preceding year, and the LES database was created based on the examination result in 2004. In 2005, experiment and survey for the unsteady air-conditioning interior of a room were performed, and accuracy verification and practical use possibility of the analysis technique of air-flow were examined. The result outline acquired by this research is shown below.・In examination of the prediction technique of the analysis by LES, CFD analysis by LES and k-e was carried out for non isothermal indoor air-flow in which the buoyancy effect excelled, and the validity and the predominancy of LES were checked. Consequently, LES showed that it was the practical prediction technique also on the business level.・While performing ventilation performance evaluation of the inflow opening based on a local similarity model, the wind tunnel experiment was conducted about the opening of various forms for the purpose of creating the design data for calculation of the amount of ventilation, and the ventilation performance database was created.・the environment resulting from regular design and that resulting from movable-nozzle design were compared using LES. ADPI, an indicator of the conditions in the occupied zone during air conditioning, was calculated, and confirmed the effectiveness of air conditioning using movable nozzle outlets.・The building circumference wind pressure distribution by the improvement k-e model which introduced limiter proposed by Durbin was predicted, and optimization of the model parameter based on comparison with an experiment was reported.

本研究机构利用非定常CFD分析技术对真实现象的再现性进行研究，目的是将该分析技术应用于下一代空气流动与热环境分析技术的环境设计。在处理非定常现象之前，2003年主要验证了CFD分析的准确性。在前一年对CFD分析的准确性进行了验证，并根据2004年的检查结果建立了LES数据库。2005年，对某室内非稳态空调进行了实验和调查，验证了气流分析技术的准确性和实际应用的可能性。本研究获得的结果概要如下。·在检验LES分析的预测技术时，对浮力效果较好的非等温室内气流进行了LES和k-e的CFD分析，验证了LES的有效性和优势性。因此，LES表明它在业务层面上也是一种实用的预测技术。·在基于局部相似模型对进风口开孔进行通风性能评价的同时，对不同形式的开孔进行风洞实验，为计算通风量提供设计数据，并建立通风性能数据库。·使用LES对常规设计和活动喷嘴设计产生的环境进行了比较。计算了空调使用期间占领区的条件指标ADPI，并证实了采用活动喷嘴出口空调的有效性。·采用引入Durbin限位器的改进k-e模型对建筑周长风压分布进行了预测，并在与实验对比的基础上对模型参数进行了优化。

项目成果

A Basic Study of the Thermal Storage Performance of Metal Fin Embedded Concrete

金属翅片嵌入混凝土蓄热性能的基础研究

• 发表时间: 2006
• 期刊: Proc. of the first meeting of YSRIM(the Yellow Sea Rim International Exchange Meeting on Building Environment and Energy)
• 作者: K.Sakai;M.Manabe;S.Kojima;H.Yamazaki
• 通讯作者: H.Yamazaki

Study on calculation method of view factors in radiant heat transfer analysis

辐射传热分析中视角因子计算方法研究

• 发表时间: 2003
• 期刊: Journal of environmental engineering (Transactions of AIJ) No.572
• 作者: Shuichi Matsumura;et al.;Ryutaro Kubo;Shuichi Matsumura et al.;Shuichi Matsumura et al.;Masashi Imano
• 通讯作者: Masashi Imano

A Simulation of the Thermal Storage Performance of the Metal Fin Embedded Concrete

金属翅片嵌入混凝土蓄热性能模拟

• 发表时间: 2003
• 期刊: Proc.of the 8th Int.IBPSA conference Vol.3
• 作者: Shuichi Matsumura;et al.;Ryutaro Kubo;Shuichi Matsumura et al.;Shuichi Matsumura et al.;Masashi Imano;Koji Sakai
• 通讯作者: Koji Sakai

加治屋亮一, 久保隆太郎, 須藤俊彦, 植田俊克, 酒井孝司, 松尾陽: "可動式ノズル吹出口の空調室内への適用に関する研究 第1,2報"日本建築学会大会学術講演梗概集. D-2. 1065-1068 (2003)

Ryoichi Kajiya、Ryutaro Kubo、Toshihiko Sudo、Toshikatsu Ueda、Takashi Sakai、Yo Matsuo：“可移动喷嘴出口在空调房间中的应用研究，第 1 次和第 2 次报告”日本建筑学会会议学术讲座论文集.D-2.1065-1068 (2003)

A Study on Airflow Characteristics and Thermal Comfort in a Floor Heating Room

地暖房间气流特性及热舒适度研究

• 发表时间: 2005
• 期刊: Memories of the institute of science and technology Meiji univeristy Vol.43,No.5
• 作者: 久保隆太郎;加治屋亮一;酒井孝司;植田俊克;松尾陽;Ryoichi Kajiya
• 通讯作者: Ryoichi Kajiya