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Primerjava dvodimenzijskih programov PCFLOW2D in FLO-2D za račun drobirskih tokov : diplomska naloga
Kotnik, Samo (Author), Četina, Matjaž (Mentor) More about this mentor... This link opens in a new window, Krzyk, Mario (Co-mentor), Steinman, Franci (Thesis defence commission member), Mikoš, Matjaž (Thesis defence commission member)

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Abstract
Diplomsko delo obravnava primerjavo rezultatov dvodimenzionalnih matematičnih modelov PCFLOW2D in FLO – 2D na primeru drobirskega toka na območju vasi Koseč. V uvodnem delu naloge so opisane glavne značilnosti drobirskih tokov, njihova klasifikacija, fizikalne in druge pomembne značilnosti ter način premikanja. V nadaljevanju sta predstavljena matematična modela PCFLOW2D in FLO - 2D, namenjena simulaciji gibanja tokov. Za vsakega posebej so podane najpomembnejše enačbe in vsi potrebni vhodni parametri, ki jih modela uporabljata pri izračunu. Nato je opisan dogodek pojava drobirskega toka na območju vasi Koseč in vzroki njegovega nastanka. Povzeti so tudi projekti, ki so bili za zavarovanje območja vasi Koseč že izvedeni. V njih so na osnovi strokovnih predlogov podane rešitve, kako bi z ureditvijo struge in s potrebnimi varovalnimi objekti preprečili oz. omilili škodo ob morebitni ponovitvi dogodka. Za vse dogovorjene ureditve so bile študije opravljene s pomočjo numeričnih simulacij z enodimenzijskim lastnim modelom PLAZ1D in dvodimenzijskim komercialnim modelom FLO-2D. V nadaljevanju so bili računi izvršeni še z modelom PCFLOW2D in narejena primerjava ter analiza rezultatov, ki jih na izbranem odseku vasi Koseč podata modela PCFLOW2D in FLO – 2D. Modela kljub enakim vhodnim podatkom (relief, Manningov koeficient, mejna strižna trdnost, viskoznost...) dajeta nekoliko različne rezultate. V diplomski nalogi so razlike detajlov raziskane,analizirani in podani pa so tudi vzroki zanje.

Language:Slovenian
Keywords:gradbeništvo, diplomska dela, UNI, VKI, drobirski tok, zemljinski zdrs, plaz, blatni tok, skalno padanje, Manningov koeficient, strižna napetost, mejna strižna trdnost, viskoznost, matematično modeliranje, PCFLOW2D, FLO-2D, Koseč
Work type:Undergraduate thesis (m5)
Tipology:2.11 - Undergraduate Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2006
Publisher:[S. Kotnik]
Number of pages:XV, 59 str. ., pril.
Place:Ljubljana
UDC:532.3/.5:556.535(043.2)
COBISS.SI-ID:3354721 Link is opened in a new window
Views:425
Downloads:204
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Secondary language

Language:English
Title:Comparison of two dimensional codes PCFLOW2D and FLO-2D for debris flow computations : graduation thesis
Abstract:
The graduation thesis treats the comparison of two two-dimensional mathematical models and the results produced on debris flow example. The models are known as PCFLOW2D and FLO – 2D and were used for debris flow simulations. In the first part of the diploma work there are teoretical basis of a debris flow, its classification, physical and other important characteristics and features concerning its movement. Basic equations and input parameters of both models (PCFLOW2D and FLO-2D) that were used in calculations are given next. Further on, all data known up to now about the formation, causes and the consequences of the debris flow at the territory of Koseč are resumed. All the projects considering the problems of debris flows at the territory of Koseč that have already been finished are also descibed in this section. By using numerical simulations with one-dimensional domestic model PLAZ1D and two-dimensional comercial model FLO-2D, experts want to prevent or mitigate the damage that another debris flow might cause if it occures. Additionally, the computations on the same landscape have been performed with the domestic two-dimensional model PCFLOW2D. The results of both models FLO-2D and PCFLOW2D are to some extent different although the same input data such as Manning's coefficient, yield strength, viscosity and others have beeen used. The main goal of this diploma work is to answer the questions why it comes to the differences between the two models and how big they are.


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