Dstl's Urban Dispersion Model (UDM) calculates the time sequence of concentrations, sizes and positions of multiple dispersing puffs in urban areas. For speed and ease of use, each puff is approximated by a 3D gaussian concentration profile. The UDM has been validated against extensive field trial and wind tunnel data, and found to be robust and reliable in application; see, for example, Griffiths er al (2002). For a discussion of the technical principles underpinning the UDM, see Hall et al (1997).
展开▼
机译：DSTL的城市分散模型（UDM）计算城市地区多次分散泡芙的浓度，尺寸和位置的时间顺序。为了速度和易用性，每个PUFF被3D高斯浓度剖面近似。 UDM已针对广泛的现场试验和风洞数据验证，并在应用中发现是稳健和可靠的;例如，参见Griffiths Er Al（2002）。有关讨论支持UDM的技术原则，请参阅Hall等人（1997）。
展开▼
