Conference paper
A new formulation of the probability density function in random walk models for atmospheric dispersion
Meteorology, Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Wind Energy Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
In this model for atmospheric dispersion particles are simulated by the Langevin Equation, which is a stochastic differential equation. It uses the probability density function (PDF) of the vertical velocity fluctuations as input. The PDF is constructed as an expansion after Hermite polynomials. In several previous works where the PDF was expressed this way, further use was hampered by the fact that the PDF takes negative values for a range of velocities.
This problem is overcome in the present formulation
| Language: | English |
|---|---|
| Publisher: | Plenum Publishing Corporation |
| Year: | 1998 |
| Pages: | 429-440 |
| Proceedings: | 22nd NATO/CCMS International Technical Meeting |
| Series: | Nato Challenges of Modern Society, 22 |
| ISBN: | 0306458217 , 1475791283 , 1475791305 , 9780306458217 , 9781475791280 and 9781475791303 |
| Types: | Conference paper |
| ORCIDs: | Gryning, Sven-Erik |
