Advance numerical simulation system for urban atmospheric hazard prediction and assessment

先进的城市大气灾害预测与评估数值模拟系统

• 批准号: 386895-2009
• 负责人: Wang, BingChen
• 金额: $ 3.51万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=498560
• 关键词: Advance; numerical; simulation; system; urban

The release of chemical, biological, radiological, or nuclear (CBRN) agents as well as other toxic industrial materials in a densely populated urban environment and the subsequent dispersion and contamination is a critically important problem directly related to the safety of the residents. The proposed research is a collaborative project between the University of Manitoba, Waterloo CFD Engineering Consulting Inc. (WATCFD) and Defence R&D Canada - Suffield. The overall objective of this proposal focuses on developing an advanced, fully validated, state-of-the-science numerical simulation system based on the method of hybrid RANS/LES for improved prediction and investigation of turbulent flow and dispersion in a complex urban environment. This advanced numerical simulation system will be developed using C/C++ and FORTRAN 90/95 programming languages based on the message-passing interface. High-performance computations will be conducted using two supercomputers. In order to validate the numerical simulation system developed, a two-stage strategy will be used: firstly, the predictions from the numerical system will be compared to two data sets obtained from a direct numerical simulation (at low and moderate Reynolds numbers); and secondly, the predictions will be assessed against three sets of high-quality laboratory and field experimental data (at high Reynolds numbers).

在人口稠密的城市环境中，化学，生物学，放射学或核（CBRN）药物以及其他有毒工业材料的释放以及随后的分散和污染是与居民安全直接相关的至关重要的问题。拟议的研究是曼尼托巴大学，滑铁卢CFD工程咨询公司（WATCFD）和加拿大国防研发-Suffield之间的合作项目。该提案的总体目的是开发基于混合RANS/LES的方法，以改进复杂城市环境中的湍流和分散体，以改进预测和研究。该高级数值模拟系统将使用基于消息通话接口的C/C ++和Fortran 90/95编程语言开发。高性能计算将使用两个超级计算机进行。为了验证开发的数值模拟系统，将使用两阶段的策略：首先，将数值系统的预测与从直接数值模拟（低和中等雷诺数下）获得的两个数据集进行比较；其次，将对三组高质量实验室和现场实验数据（在雷诺数高）进行评估。