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Cfd analysis of flow and concentration fields.
| Content Provider | CiteSeerX |
|---|---|
| Author | Tominaga, Y. Stathopoulos, T. |
| Abstract | The prediction of plume dispersion near buildings is very important for the design of exhaust stacks and air intakes in order to avoid adverse air quality impacts. However, it is difficult to predict pollutant dispersion with certain accuracy due to the complex interaction between atmospheric flow and flow around buildings. Although Computational Fluid Dynamics (CFD) techniques are widely utilized to study the wind field and pollutant transport near and around buildings through rapid development in computer hardware and numerical modeling, the prediction accuracy of the quantitative values for these phenomena is not so clear. In this paper, the prediction accuracy of the flow and dispersion around a cubic building with a flush stack located on the roof were examined using various k-ε models. Numerical results were compared with the wind tunnel data. The pollutant distributions were well predicted with the modified k-ε models. It was confirmed that the predicted concentrations by all CFD models were less diffusive than those of the experiment and the results were largely dependent on the value of turbulent Schmidt number. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Cfd Analysis Flow Concentration Field Prediction Accuracy Numerical Result Wind Field Certain Accuracy Wind Tunnel Data Turbulent Schmidt Number Atmospheric Flow Quantitative Value Pollutant Distribution Cubic Building Rapid Development Various Model Computer Hardware Complex Interaction Predicted Concentration Adverse Air Quality Impact Numerical Modeling Pollutant Dispersion Plume Dispersion Pollutant Transport Cfd Model Air Intake Flush Stack Computational Fluid Dynamic Exhaust Stack |
| Content Type | Text |
