David J. Wilson

Concentration Fluctuations and Averaging Time in Vapor Clouds (eBook, PDF)

• Format: PDF

Produktbeschreibung

This book contributes to more reliable and realistic predictions by focusing on sampling times from a few seconds to a few hours. Its objectives include developing clear definitions of statistical terms, such as plume sampling time, concentration averaging time, receptor exposure time, and other terms often confused with each other or incorrectly specified in hazard assessments; identifying and quantifying situations for which there is no adequate knowledge to predict concentration fluctuations in the near-field, close to sources, and far downwind where dispersion is dominated by atmospheric turbulence; identifying areas where further information is required to define concentration variability statistics; and formulating an operation model for concentration fluctuations based on the current state of knowledge of dispersion processes.

---

Dieser Download kann aus rechtlichen Gründen nur mit Rechnungsadresse in A, B, BG, CY, CZ, D, DK, EW, E, FIN, F, GR, HR, H, IRL, I, LT, L, LR, M, NL, PL, P, R, S, SLO, SK ausgeliefert werden.

Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 182
• Erscheinungstermin: 13. September 2010
• Englisch
• ISBN-13: 9780470937969
• Artikelnr.: 38186066

Autorenporträt

David J. Wilson is the author of Concentration Fluctuations and Averaging Time in Vapor Clouds, published by Wiley.

Inhaltsangabe

Preface.
Acknowledgments.
1. Background and Objectives.
2. Sampling and Averaging Time Definitions.
3. Effect of Averaging Time on Mean Calculations.
4. Concentration Fluctuation Modeling.
5. Probability Distributions.
6. Release Height and Source Size Effects on Fluctuation Intensity.
7. Source Density Effects on Fluctuations.
8. Buildings and Obstacles.
9. Threshold Crossing and peak Levels.
10. Framework for an Operational Model.
Appendix A. Averaging and Sampling Time Effects on Plume Spread Velocity
and Concentration Fluctuations.
Appendix B. Peak Values and Threshold Crossing Probability.
Appendix C. Eulerian and Lagrangian Turbulence Scales.
References.
Nomenclature.
Index.