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Development And Evaluation Of A Simple Second Order Closure Atmospheric Dispersion Model For An Elevated Passive Release
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Book Synopsis Development and Evaluation of a Simple Second Order Closure Atmospheric Dispersion Model for an Elevated Passive Release by : Sandeep Sahore
Download or read book Development and Evaluation of a Simple Second Order Closure Atmospheric Dispersion Model for an Elevated Passive Release written by Sandeep Sahore and published by . This book was released on 1997 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Simple Second Order Closure Model for Atmospheric Dispersion of Heavy Gases by : Madhavan Ranganathan
Download or read book Development of a Simple Second Order Closure Model for Atmospheric Dispersion of Heavy Gases written by Madhavan Ranganathan and published by . This book was released on 1997 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Workbook of Atmospheric Dispersion Estimates by : D. Bruce Turner
Download or read book Workbook of Atmospheric Dispersion Estimates written by D. Bruce Turner and published by CRC Press. This book was released on 2020-12-17 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely updated and revised Second Edition of the popular Workbook of Atmospheric Dispersion Estimates provides an important foundation for understanding dispersion modeling as it is being practiced today. The book and accompanying diskette will help you determine the impacts of various sources of air pollution, including the effects of wind and turbulence, plume rise, and Gaussian dispersion and its limitations. Information is shown in summary graphs as well as in equations. The programs included on the diskette allow you to "get the feel" for the results you'll obtain through the input of various combinations of parameter values. The sensitivity of data to various parameters can be easily explored by changing one value and seeing the effect on the results. The book presents 37 example problems with solutions to show the estimation of atmospheric pollutant concentrations for many situations.
Download or read book Air Quality written by Gandikota V. Rao and published by Springer Science & Business Media. This book was released on 2003-01-23 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, "Air Quality", contains many original findings on biomasss fires, transboundary pollution and associated haze and their impacts on health, biodiversity and economy and thus is expected to be a source book for research in South East Asia. Many of the results presented in this volume pertain to this region and are thus available under one ' roof.' Some papers could be discussed in graduate level classes dealing with Air Pollution, Air Quality, Cloud Physics and Biophysics. The scientific community will find this book a useful addition to their personal and institutional libraries.
Book Synopsis Atmospheric Dispersion Modeling Compliance Guide by : Karl B. Schnelle
Download or read book Atmospheric Dispersion Modeling Compliance Guide written by Karl B. Schnelle and published by McGraw Hill Professional. This book was released on 2000 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM includes: Practice problems that reinforces and deepen understanding of modeling principles.
Book Synopsis Development of an Atmospheric Dispersion Model for Heavier-than-air Gas Mixtures: Main report by : Jerry A. Havens
Download or read book Development of an Atmospheric Dispersion Model for Heavier-than-air Gas Mixtures: Main report written by Jerry A. Havens and published by . This book was released on 1985 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmospheric Dispersion Model Validation in Low Wind Conditions by :
Download or read book Atmospheric Dispersion Model Validation in Low Wind Conditions written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric plume dispersion models are used for a variety of purposes including emergency planning and response to hazardous material releases, determining force protection actions in the event of a Weapons of Mass Destruction (WMD) attack and for locating sources of pollution. This study provides a review of previous studies that examine the accuracy of atmospheric plume dispersion models for chemical releases. It considers the principles used to derive air dispersion plume models and looks at three specific models currently in use: Aerial Location of Hazardous Atmospheres (ALOHA), Emergency Prediction Information Code (EPIcode) and Second Order Closure Integrated Puff (SCIPUFF). Results from this study indicate over-prediction bias by the EPIcode and SCIPUFF models and under-prediction bias by the ALOHA model. The experiment parameters were for near field dispersion (less than 100 meters) in low wind speed conditions (less than 2 meters per second).
Book Synopsis Atmospheric Dispersion Parameters in Plume Modeling by : F. Pasquill
Download or read book Atmospheric Dispersion Parameters in Plume Modeling written by F. Pasquill and published by . This book was released on 1978 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brief survey is given of the present position in the specification of atmospheric dispersion parameters for use in estimating pollutant concentration from a continuous point release. The theoretical indications of the distribution to be expected across a time-mean plum are recalled, with particular reference to the existence of the Gaussian form. Observational evidence, especially as regards the vertical distribution from a surface release, is also recalled, and the practical significance of departure from an assumed Gaussian form is noted. The use of the Taylor statistical theory in the generalized estimation of crosswind spread in quasi-ideal boundary layer flow is briefly summarized. Recent considerations of the behaviour of the crosswind component of turbulence in the surface layer and new developments from laboratory modeling of horizontal dispersion in convective mixing are noted. A brief survey is given of the achievements of gradient-transfer theory and Lagrangian similarity theory in calculating vertical spread from a surface release. New tests against previous dispersion data underline inadequacies in the present approaches in very unstable conditions. Promising developments from the laboratory modeling of a convectively mixed layer and from the 2nd-order-closure modeling of the turbulent fluctuation equations are summarized. The assimulation of theory and experience into practical systems for the specification of [sigma]y and [sigma]z is briefly reconsidered. For [sigma]y a practical procedure based on wind direction fluctuation data is reaffirmed. For [sigma]z a new format which may be envisaged for future composite curves is suggested. Finally, the inherent limitations of practical systems for estimating concentration levels are reiterated.
Book Synopsis Meteorological and Geoastrophysical Abstracts by :
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1997 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of an Atmospheric Dispersion Model for Heavier-Than-Air Gas Mixtures by : Jerry A. Havens
Download or read book Development of an Atmospheric Dispersion Model for Heavier-Than-Air Gas Mixtures written by Jerry A. Havens and published by . This book was released on 1985 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical modeling techniques use to predict atmospheric dispersion of heavy gases are reviewed and critiqued. These dispersion processes are characterized by three phases: (1) near field, negative buoyancy-domainated flow regime; (2) intermediate field, stably stratified shear flow regime; and (3) far field, passive turbulent diffusion regime. Mathematical models of laboratory and natural gravity currents are used to describe the negative buoyancy-dominated regime flow and dilution processes. A laboratory investigation of instantaneous heavy gas releases in calm air demonstrates scaling from small release volumes (0.5 cu m) to large field (2000 cu m) field releases, and is used to develop a mathematical model for the buoyancy-dominated regime. Laboratory data from stratified shear flow mixing experiments are used to develop a model for vertical diffusion of heavy gases in the atmospheric surface layer. The model concepts are consistent with the limiting passive behavior of demonstrated air pollution models. An interactive computer model for heavy gas dispersion (DEGADIS) is developed. The DEGADIS model accounts for the three regimes of heavy gas dispersion processes and can be used to simulate instantaneous, steady state, and transient releases. The model provides predictions of downwind concentration decay which are in good agreement with the full range of field experimental data currently available, and is recommended for incorporation in the Coast Guard hazard assessment computer system.
Book Synopsis Models for Close-in Atmospheric Dispersion, Explosive Releases, and Particle Deposition by :
Download or read book Models for Close-in Atmospheric Dispersion, Explosive Releases, and Particle Deposition written by and published by . This book was released on 1993 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relatively simple models are presented to simulate close-in atmospheric dispersion, explosive releases, and particle deposition. Close-in generally refers to distances less than 50 m downwind from the source. These models assume simple gas dispersion (no chemical reactions, neutral buoyancy) and that particles behave as a gas expect they can be removed from the plume by a simple, deposition-velocity mechanism. These models have been combined into a QuickBASIC program (INEXPLC. BAS) and its PC executable form (INEXPLC. EXE). These programs, along with sample input and output files, are available from the author.
Book Synopsis Atmospheric Dispersion Modelling by : Rod Barratt
Download or read book Atmospheric Dispersion Modelling written by Rod Barratt and published by Routledge. This book was released on 2001 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2001. Routledge is an imprint of Taylor & Francis, an informa company.
Book Synopsis Urban Air Pollution Modelling by : Michael M. Benarie
Download or read book Urban Air Pollution Modelling written by Michael M. Benarie and published by Springer. This book was released on 2015-12-26 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together the methods, models and formulae used for estimating air pollution concentrations in urban areas. From the ForewordThe visible effects of pollution in most cities in the developed countries have been reduced dramatically in the past thirty years. This has been achieved to a large extent by the replacement of most of the low-level sources, which burnt raw coal, by more modern appliances using gas, electricity or low-sulphur oil. The killer smog of 1952 could not be repeated unless there were to be a massive return to old-fashioned heating methods, due, for example, to excessive environmental constraints being applied to the more modern energy sources. It is important, therefore, to judge the impact of a new source in terms of its effect on the pattern of existing sources. One should also consider the environmental consequences of rejecting the new installation and examine the alternatives--that its product may either be denied to the community at large, produced elsewhere or produced using existing facilities. These facilities are probably less efficient and may therefore produce more pollution per unit of product than the new plant would. An objective, quantitative, urban-air-pollution model is clearly an essential component in such a decision-making process. Dr. Benarie has produced a distillation of existing modelling techniques which will, I hope, become the launching pad for many future models. As each city is unique, it will need its own tailor-made model, drawing on the best and the most appropriate techniques developed previously. Agreement with observations is the only real test of validity, because the physics and chemistry are so complicated that theoretical arguments are reduced to the role of assisting in the best formulation of the problem. Numerical precision must always rely on measurement. This is the approach that Dr. Benarie has adopted.--David J. Moore, Central Electricity Research Laboratires, Leatherhead, Surrey, UK.
Book Synopsis Good Practice Guide for Atmospheric Dispersion Modelling by : New Zealand. Ministry for the Environment
Download or read book Good Practice Guide for Atmospheric Dispersion Modelling written by New Zealand. Ministry for the Environment and published by . This book was released on 2004-01-01 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atmospheric Dispersion Modeling Compliance Guide by : Karl B. Schnelle
Download or read book Atmospheric Dispersion Modeling Compliance Guide written by Karl B. Schnelle and published by . This book was released on 2000 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM includes: Practice problems that reinforces and deepen understanding of modeling principles.
Book Synopsis Development and Evaluation of Portable Passive and Real-time Measurement Systems, and Dispersion Models, to Estimate Exposure to Traffic-related Air Pollutants by : Nicola Masey
Download or read book Development and Evaluation of Portable Passive and Real-time Measurement Systems, and Dispersion Models, to Estimate Exposure to Traffic-related Air Pollutants written by Nicola Masey and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Practical Guide to Atmospheric Dispersion Modeling by : D. Bruce Turner
Download or read book Practical Guide to Atmospheric Dispersion Modeling written by D. Bruce Turner and published by Trinity Consultants Incorporated. This book was released on 2007-01-01 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
