Dispersion Prediction Model for Instantaneous Release of Hazardous Chemicals under Variable Wind Conditions

Ling Ren; Jianguo Chen; Zheng Du; Jing Guo Bai

doi:10.4028/www.scientific.net/AMR.610-613.597

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 610-613Dispersion Prediction Model for Instantaneous...

Dispersion Prediction Model for Instantaneous Release of Hazardous Chemicals under Variable Wind Conditions

Abstract:

A modified Gaussian puff model, which is applicable to multiple changes of wind direction and wind speed, is put forward based on the coordinate transformation for the instantaneous release of hazardous chemicals. In addition, a specific implementation method of the model is discussed. Furthermore, the velocity correction is applied to the modified model. The trajectory of the puff center which represents puff motion is analyzed by the linear and quadratic velocity correction methods respectively. It is depicted that the trajectory of puff motion is smooth and the smooth transition sections exist after the change of wind direction and wind speed based on the velocity correction method, showing good agreement with the real conditions.

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Periodical:

Advanced Materials Research (Volumes 610-613)

Pages:

597-602

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.610-613.597

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Online since:

December 2012

Authors:

Ling Ren, Jianguo Chen, Zheng Du, Jing Guo Bai

Keywords:

Gaussian Puff Model, Variable Wind Direction, Variable Wind Speed, Velocity Correction

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