Probability distribution of dispersion from a model plume in turbulent wind
| Autor: | John C. K. Cheung, William H. Melbourne |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Meteorology
Renewable Energy Sustainability and the Environment Mechanical Engineering Mechanics Wake Standard deviation Plume law.invention Physics::Fluid Dynamics Stack (abstract data type) law Intermittency Environmental science Dispersion (water waves) Physics::Atmospheric and Oceanic Physics Civil and Structural Engineering Wind tunnel Weibull distribution |
| Zdroj: | Journal of Wind Engineering and Industrial Aerodynamics. 87:271-285 |
| ISSN: | 0167-6105 |
| DOI: | 10.1016/s0167-6105(00)00043-x |
| Popis: | Wind tunnel experiments were performed to measure mean, standard deviation and peak mass concentrations of a discharge at vertical and horizontal traverses downstream of a model stack. Time-series data of concentration fluctuations measured from 10 fast response flame-ionization-detectors were collected for statistical analysis. The measurements were made for a single buoyant and non-buoyant model plume source discharged from a stack with two exit velocities in neutral, suburban terrain roughness turbulent wind flows. With the inclusion of a building placed between the stack and the measurement locations, the effects of the interaction with the building wake were also examined. Cumulative probability distributions presented in Weibull plots have shown the relatively higher intermittency characteristics of dispersion at the extremities of a plume close to the stack source. At distances further away from the stack, the intermittency of the plume has been shown to become lower. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect