Local-scale atmospheric dispersion modeling for emergency response to releases of hazardous materials in urban areas

城市地区危险物质释放应急响应的局部大气扩散模型

• 批准号: 22710051
• 负责人: NAKAYAMA Hiromasa
• 金额: $ 2.75万
• 依托单位: Japan Atomic Energy Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22710051/
• 关键词: 健康影響評価; Large-Eddy Simulation; 有害危険物拡散; 都市市街地; 融合解析; 大気乱流; 大気拡散; 有害危険物質; 数値シミュレーション; 簡易形状建物群; 瞬間高濃度出現特性

Our objective is to propose an approach to predict local-scale atmospheric dispersion behaviors by coupling between numerical weather prediction (NWP) and large-eddy simulation (LES) based computational fluid dynamics (CFD) models. We validated the basic performance of our model by comparing to the wind tunnel experimental data of turbulent flows and plume dispersion in building arrays, and the observed data over the central city area of Tokyo. From the above-mentioned, it is concluded that our approach is applicable to the problems of urban dispersion by accidental and intentional release of hazardous materials and nuclear disasters.

我们的目标是提出一种方法来预测本地尺度的大气扩散行为之间的耦合数值天气预报（NWP）和大涡模拟（LES）基于计算流体动力学（CFD）模式。通过与建筑物阵列中湍流和羽流扩散的风洞实验数据以及东京中心城市地区的观测数据进行比较，验证了模型的基本性能。由此可见，本文的方法适用于危险物质的意外和故意释放以及核灾难引起的城市扩散问题。

项目成果

Large-Eddy Simulation of plume dispersion within various actual urban areas

各种实际城市区域羽流扩散的大涡模拟

• 发表时间: 2013
• 期刊: Advances in Science and Research
• 作者: Nakayama;H.;K. Jurcakova and H. Nagai;Hiromasa Nakayama
• 通讯作者: Hiromasa Nakayama

Development of local-scale high-resolution atmospheric dispersion model using large-eddy simulation. Part 3: turbulent flow and plume dispersion in building arrays

• DOI: 10.1080/00223131.2013.785267
• 发表时间: 2013-05-01
• 期刊: JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
• 影响因子: 1.2
• 作者: Nakayama, Hiromasa;Jurcakova, Klara;Nagai, Haruyasu
• 通讯作者: Nagai, Haruyasu

乱流流入生成手法を用いたLESモデルと気象モデルによる都市域強風変動の融合解析

LES模型与湍流入流生成法气象模型综合分析城区强风脉动

• 发表时间: 2011
• 作者: 中山浩成;竹見哲也;永井晴康
• 通讯作者: 永井晴康

LES of flow and plume dispersion within and over various obstacle arrays

各种障碍物阵列内部和上方的流动和羽流扩散的 LES

• 发表时间: 2011
• 作者: H.Nakayama;K.Jurcakova;H.Nagai
• 通讯作者: H.Nagai

Large-eddy simulation of plume dispersion within regular arrays of cubic buildings

• DOI: 10.5194/asr-6-79-2011
• 发表时间: 2011-04
• 期刊: Advances in Science and Research
• 作者: H. Nakayama;K. Jurčáková;H. Nagai