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: $ 5.79万
• 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: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=485537
• 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释放化学、生物、放射性或核（CBRN）制剂以及其他有毒工业材料以及随后的扩散和污染是一个与居民安全直接相关的至关重要的问题。拟议的研究是一个合作项目之间的马尼托巴大学，滑铁卢CFD工程咨询公司。（WATCFD）和加拿大国防研究与发展部-苏菲尔德。该提案的总体目标是开发一个先进的、经过充分验证的、基于混合RANS/LES方法的最先进的数值模拟系统，以改善复杂城市环境中湍流和扩散的预测和研究。该系统采用C/C++和FORTRAN 90/95两种编程语言，以消息传递接口为基础开发。高性能计算将使用两台超级计算机进行。为了验证开发的数值模拟系统，将采用两阶段策略：首先，将数值系统的预测与直接数值模拟（低雷诺数和中等雷诺数）获得的两组数据进行比较;其次，将根据三组高质量的实验室和现场实验数据（高雷诺数）评估预测。