Dopolnitve modela PCFLOW3D za simulacijo tokov in širjenja polutantov

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Language:	Slovenian
Year of publishing:	2007
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[J. Kovšca]
UDC:	532.5:627.133:519.61/64(043.2)
COBISS:	3560545
Views:	1968
Downloads:	506
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Completion of PCFLOW3D model for simulation of flow and dispersion of pollutants
Secondary abstract:	An upgrade of the three-dimensional baroclinic mathematical model PCFLOW3D with a new turbulence model Smagorinsky-vertical is presented. Several test cases were made to compare this new turbulence model with other turbulence models already built in the PCFLOW3D model. Additional verifications of the test results were performed using the commercial software CORMIX of which main purpose is to simulate the near field areas of pollution inflows. CORMIX is restricted to steady flows only and is based on equations of the jet theory. We discovered that fast inflow jets can not be simulated well with the PCFLOW3D model, because of the relatively large vertical components of speed that are usually present and which the PCFLOW3D model cannot simulate correctly. The results indicate that the Smagorinsky-vertical turbulence model works sufficiently well when simulating hydrodynamic, but is less accurate when simulating pollutant transportation and dispersion. The use of the Smagorinsky-vertikal model is presented on a concrete study of the resuspension of mercury caused by the construction and operation of the gas terminal in the Gulf of Trieste. Finally an additional long-term simulation on the basis of seasonally averaged parameters and a few shorter inserts of strong wind and high discharges of the Soča River is presented. As it is shown, the Smagorinsky-vertical model is by all means fit for use, although a more detailed research of the effect of the CsmaV coefficient on the simulation accuracy should be carried out in the future.
Secondary keywords:	mathematical model;three-dimensional model;turbulence model;unsteady flow;Gulf of Trieste;gas terminal;mercury;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	X, 135 str., pril.
Type (ePrints):	thesis
Title (ePrints):	Dopolnitve modela PCFLOW3D za simulacijo tokov in širjenja polutantov
Keywords (ePrints):	HS;diplomska dela;UNI;matematični model;tridimenzionalni model;model turbulence;nestalni tok;Tržaški zaliv;plinski terminal;živo srebro;
Keywords (ePrints, secondary language):	mathematical model;three-dimensional model;turbulence model;unsteady flow;Gulf of Trieste;gas terminal;mercury;
Keywords (ePrints, secondary language):	mathematical model;three-dimensional model;turbulence model;unsteady flow;Gulf of Trieste;gas terminal;mercury;
ID:	8309960