diplomska naloga
Barbara Novak (Author), Dušan Žagar (Mentor), Janko Logar (Thesis defence commission member), Boštjan Pulko (Thesis defence commission member)

Abstract

Račun hidrodinamičnih količin v Tržaškem zalivu zaradi spremenljivih meteoroloških parametrov

Keywords

gradbeništvo;diplomska dela;UNI;matematično modeliranje;PCFLOW3D;Tržaški zaliv;časovno povprečen veter;

Data

Language: Slovenian
Year of publishing:
Source: Ljubljana
Typology: 2.11 - Undergraduate Thesis
Organization: UL FGG - Faculty of Civil and Geodetic Engineering
Publisher: [B. Novak]
UDC: 519.61:532.5:533.6(043.2)
COBISS: 6318689 Link will open in a new window
Views: 1540
Downloads: 501
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Other data

Secondary language: English
Secondary title: Calculation of hydrodynamic quantities in the Gulf of Trieste due to changing meteorological parameters
Secondary abstract: In the thesis, we wanted to find time-averaged wind fields over the Gulf of Trieste, which still give satisfactory results in the flow simulations. Simulations of circulation with the PCFLOW3D model were performed using the reference wind fields at hourly intervals and time-averaged wind field over 3, 6, 12 and 24 hours. The results of the simulation were compared in the form of vector images of the wind speed at the selected time and circulation images within the layers at the depths 0.5 meters and 10.5 meters. In the surface layer, the discrepancies between the circulation caused by reference wind fields and the averaged wind fields are greater than at a depth of 10.5 meters, because the effect of the wind on the surface layer is significantly larger. A useful match was achieved using 3 and 6 hours averaging. Therefore, wind data from meteorological models in the interval of 6 hours or less can be recommended for normal short-term simulations of pollutant transport and dispersion.
Secondary keywords: graduation thesis;civil engineering;mathematical model;PCFLOW3D;Gulf of Trieste;time-averaged wind;
File type: application/pdf
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages: VII, 35 str., [23] str. pril.
Type (ePrints): thesis
Title (ePrints): Calculation of hydrodynamic quantities in the Gulf of Trieste due to changing meteological parameters
Keywords (ePrints): matematično modeliranje;PCFLOW3D;Tržaški zaliv;časovno povprečen veter
Keywords (ePrints, secondary language): mathematical model;PCFLOW3D;Gulf of Trieste;time-averaged wind
Abstract (ePrints): V diplomski nalogi smo želeli poiskati časovno povprečenje vetra nad Tržaškim zalivom, ki še daje zadovoljive rezultate pri simulaciji tokov. Izvedli smo simulacije hidrodinamike z modelom PCFLOW3D z referenčnimi vetrovnimi polji v enournih časovnih intervalih in s časovno povprečenimi vetrovnimi polji preko 3, 6, 12 in 24 ur. Nato smo med seboj primerjali rezultate simulacij v obliki vektorskih slik hitrosti vetra v izbrani uri ter tokovnih slik slojev na globini 0,5 metra in 10,5 metra. V površinskem sloju so bila odstopanja med referenčnimi hitrostmi in hitrostmi zaradi povprečenega vetra večja, kot na globini 10,5 metra, ker je vpliv vetra na površini večji. Uporabno ujemanje smo dosegli pri 3 in 6 urnem povprečenju, zato tudi priporočamo za običajne kratkoročne simulacije transporta onesnažil podajanje vetra iz meteoroloških modelov v časovni resoluciji 6 ur ali manj.
Abstract (ePrints, secondary language): In the thesis, we wanted to find time-averaged wind fields over the Gulf of Trieste, which still give satisfactory results in the flow simulations. Simulations of circulation with the PCFLOW3D model were performed using the reference wind fields at hourly intervals and time-averaged wind field over 3, 6, 12 and 24 hours. The results of the simulation were compared in the form of vector images of the wind speed at the selected time and circulation images within the layers at the depths 0.5 meters and 10.5 meters. In the surface layer, the discrepancies between the circulation caused by reference wind fields and the averaged wind fields are greater than at a depth of 10.5 meters, because the effect of the wind on the surface layer is significantly larger. A useful match was achieved using 3 and 6 hours averaging. Therefore, wind data from meteorological models in the interval of 6 hours or less can be recommended for normal short-term simulations of pollutant transport and dispersion.
Keywords (ePrints, secondary language): mathematical model;PCFLOW3D;Gulf of Trieste;time-averaged wind
ID: 8312900