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Study on the indoor airflow pattern and thermal comfort under cross ventilated situation of residential building by using domain decomposition technique

Study on the indoor airflow pattern and thermal comfort under cross ventilated situation of residential building by using domain decomposition technique
利用域分解技术研究住宅建筑交叉通风情况下的室内气流模式及热舒适度
批准号:
22360241
负责人:
KURABUCHI Takashi
金额:
$11.48万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010 至 2012

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中文摘要
翻译
1. Study on prediction in cross-ventilation performance2.我们主要研究四种kinds of studies.1Evaluation of cross-ventilation performance of various opening conditions3. Prediction method ofcooling sensation due to breezing airflow driven by cross-ventilation4. Study on the convective heattransfer coefficient and thermal resistance of clothing under cross ventilationThese main resultsare shown below. Modification of inflow boundary conditions based on coupled simulation resultsshowed some effect to improve reproduction accuracy of cross-ventilated indoor airflowstructures The results showed that, generally speakingwind velocity ratio value C可以确定每个人的情况almost regardless of the location or time slotand confirmed the validity of the method of evaluating cross-ventilation performance which uses thewind velocity ratio C and ignores locality. From the results of the cooling effect ofcross-ventilation airflow had on the occupants我们也发现它是可能的perform relatively high-accuracy prediction by using numericalthermal mannequin with decoupled CFD technique In the case of clothing with high breathabilitythermal resistance of clothing decreased by 10-20% at a wind speed of 0.5 m/s,20% at a wind speed of 1 m/s, 30-40% at a wind speed of 2 m/s。
英文摘要
We mainly did four kinds of studies.1. Study on prediction in cross-ventilation performance2. Evaluation of cross-ventilation performance of various opening conditions3. Prediction method of cooling sensation due to breezing airflow driven by cross-ventilation4. Study on the convective heat transfer coefficient and thermal resistance of clothing under cross ventilationThese main results are shown below.・Modification of inflow boundary conditions based on coupled simulation results showed some effect to improve reproduction accuracy of cross-ventilated indoor airflow structures.・The results showed that, generally speaking, the wind velocity ratio value C can be determined uniquely for each opening case, almost regardless of the location or time slot, and confirmed the validity of the method of evaluating cross-ventilation performance which uses the wind velocity ratio C and ignores locality.・From the results of the cooling effect of cross-ventilation airflow had on the occupants, we also found that it is possible to perform relatively high-accuracy prediction by using numerical thermal mannequin with decoupled CFD technique.・ In the case of clothing with high breathability, thermal resistance of clothing decreased by 10-20% at a wind speed of 0.5 m/s, 20% at a wind speed of 1 m/s, and 30-40% at a wind speed of 2 m/s.
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DOI: --
发表时间: 2011
期刊: The International Journal of Ventilation
影响因子: --
作者: [Keiko SATO, Takashi KURABUCHI, Takeshi OGASAWARA, Masaaki OHBA, Shizuo IWAMOTO, Nobumi SAHASHI and Seigo IKEHARA]
通讯作者: Nobumi SAHASHI and Seigo IKEHARA
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者: [Yuuki YAMANAKA, and Takashi KURABUCHI]
通讯作者: and Takashi KURABUCHI
A study on thermal resistance of clothing under cross ventilatedsituation, INDOOR AIR 2011
交叉通风条件下服装热阻研究,室内空气 2011
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [Nobummi SAHASGI, Takashi. KURABUCHI, Takeshi OGASAWARA, Keiko SATO, SeigoIKEHARA, Masaaki OHABA and ShizuoIWAMOTO]
通讯作者: Masaaki OHABA and ShizuoIWAMOTO
Decoupled simulation of cross-ventilated indoor airflow of residential buildings, Passive and Low Energy Cooling for the Built Environment
住宅建筑交叉通风室内气流的解耦模拟,建筑环境的被动式低能耗冷却
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者: [Takashi KURABUCHI, Kumiko TSURUTA, Yuma KOUCHI, and Masaaki OHBA]
通讯作者: and Masaaki OHBA
36
    A developmental study on improved technique of cross-ventilation Performance using residential roof window
    • 批准号:
      19360263
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $13.23万
    • 财政年份:
      2007
    • 负责人:
      KURABUCHI Takashi
    • 依托单位:
    A Study on the Extreme use of cross-ventilation as a potential energy for air-conditioning purpose
    • 批准号:
      15360312
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $9.6万
    • 财政年份:
      2003
    • 负责人:
      KURABUCHI Takashi
    • 依托单位:
    Study on Diagnostic System of Ventilation Characteristics of Air-Tight Houses Based on Tracer Gas Experiment
    • 批准号:
      10650594
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.5万
    • 财政年份:
      1998
    • 负责人:
      KURABUCHI Takashi
    • 依托单位:
    海外基金