| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 655749 | International Journal of Heat and Fluid Flow | 2010 | 15 Pages |
Abstract
⺠The computed DNS statistics indicate that a gradient-transport scheme can be applied to the vertical and spanwise scalar flux components. ⺠The streamwise scalar flux is characterized by a counter-gradient transport mechanism in the wake region close to the obstacle. ⺠The wake profiles of scalar fluctuations and the shape of probability density functions do not suggest a significant flapping movement of the scalar plume. ⺠The evaluation of scalar dispersion models must include a careful assessment of the computed mean velocity field and Reynolds stress tensor. ⺠Algebraic models provide an improved prediction of the mean concentration field as compared to the standard eddy-diffusivity model.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
R. Rossi, D.A. Philips, G. Iaccarino,