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Large-eddy simulation of wind flow and air pollutant transport inside urban street canyons of different aspect ratiosLi, Xianxiang. January 2008 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Includes bibliographical references (p. 187-205) Also available in print.
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Large-eddy simulation of wind flow and air pollutant transport inside urban street canyons of different aspect ratios /Li, Xianxiang. January 2008 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Includes bibliographical references (p. 187-205) Also available online.
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Atmospheric dispersion model validation for low wind speed conditionsSawyer, Patrick Shawn. January 1900 (has links)
Thesis (M.S.)--University of Nevada, Las Vegas, 2007. / Adviser: Vernon Hodge. Includes bibliographical references.
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A laboratory investigation of the Lagrangian autocorrelation function in a stratified fluidFrenzen, Paul. January 1963 (has links)
Thesis (Ph. D.)--University of Chicago, 1963. / "ANL-6794." Includes bibliographical references (p. 164-168).
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A laboratory investigation of the Lagrangian autocorrelation function in a stratified fluidFrenzen, Paul. January 1963 (has links)
Thesis (Ph. D.)--University of Chicago, 1963. / "ANL-6794." Includes bibliographical references (p. 164-168).
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Inter-comparison of Gaussian air dispersion models for regulatory applications in Hong Kong /Man, Marty Yu Kit. January 2008 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2008. / Includes bibliographical references (p. 114).
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An adaptive multi-dimensional Eulerian-Lagrangian finite element method for simulating advection-dispersion.Cady, Ralph. January 1989 (has links)
Advection-dispersion is generally solved numerically with methods that treat the problem from one of three perspectives. These are described as the Eulerian reference, the Lagrangian reference or a combination of the two that will be referred to as Eulerian-Lagrangian. Methods that use the Eulerian-Lagrangian approach incorporate the computational power of the Lagrangian treatment of advection with the simplicity of the fixed Eulerian grid. A modified version of a relatively new adaptive Eulerian-Lagrangian finite element method is presented for the simulation of advection-dispersion. Advection is solved by an adaptive technique that automatically chooses a local solution technique based upon a criterion involving the spatial variation of the gradient of the concentration. Moving particles (the method of characteristics; MOC) are used to define the concentration field in areas with significant variation of the concentration gradient. A modified method of characteristics (MMOC) called single-step reverse particle tracking is used to treat advection in areas with fairly uniform concentration gradients. As the simulation proceeds, the adaptive technique, as needed to maintain solution accuracy and optimal simulation efficiency, adjusts the advection solution process by inserting and deleting moving particles to shift between MMOC and MOC. Dispersion is simulated by a finite element formulation that involves only symmetric and diagonal matrices. Despite evidence from other investigators that diagonalization of the mass matrix may lead to poor solutions to advection-dispersion problems, this method seems to allow "lumping" of the mass matrix by essentially decoupling advection and dispersion. Based on tests of problems with analytical solutions, the method seems capable of reliably simulating the entire range of Peclet numbers with Courant numbers that range to 15.
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Development and validation of MM5 MOS-based forecast equations for mixing heightPibal, Douglas J. January 2007 (has links)
Thesis (M.S.)--University of Nevada, Reno, 2007. / "August, 2007." Includes bibliographical references (leaves 74-76). Online version available on the World Wide Web.
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Investigation of winter aerosol dispersion using the MM5/WRF-CAMx4 numerical modelling system : application to the aerosol abatement strategy for the city of Christchurch : a thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy in Environmental Science at the University of Canterbury /Titov, Mikhail, January 2008 (has links)
Thesis (Ph. D.)--University of Canterbury, 2008. / Typescript (photocopy). Includes bibliographical references (p. 295-317). Also available via the World Wide Web.
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Atmospheric dispersion in and over model urban canopiesWhite, Louis Arthur. January 2008 (has links)
Thesis (M.S.)--University of Delaware, 2008. / Principal faculty advisor: I. Pablo Huq, College of Marine and Earth Studies. Includes bibliographical references.
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