Utjecaj anizotropije koeficijenta filtracije na intenzitet procjeđivanja

undergraduate thesis

• Title (english): Influence of the permeability coefficient anisotropy on the seepage intensity
• Author: Dorian Žunić
• Mentor: Goran Lončar (mentor)
• Committee member: Damir Bekić (predsjednik povjerenstva)
• Committee member: Goran Lončar (član povjerenstva)
• Committee member: Kristina Potočki (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2020-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

Prikazani su rezultati numeričkog modeliranja procjeđivanja ispod brane sa zagatom, koji se nalaze u stijeni međuzrnske poroznosti. U varijantnim rješenjima hipotetske prostorne domene promatra se utjecaj promjene koeficijenta filtracije na brzine i ukupne protoke procjeđivanja. Korišteni su 2D modeli u vertikalnoj ravnini s horizontalnom razinom tla i nepropusne podine. Korišten je model konačnih diferencija. Rezultati su pokazali da anizotropija uzrokuje smanjenje intenziteta procjeđivanja u odnosnu na slučaj izotropne sredine pri istim rubnim uvjetima i geometrijskim karakteristikama modela ako je koeficijent filtracije veći u horizontalnom smjeru te povećanje intenziteta procjeđivanja ako je koeficijent filtracije veći u vertikalnom smjeru.

Abstract (english)

This research presents the results of numerical modeling of seepage under the dam, which are located in the intergranular porosity rock. The influence of the change of the filtration coefficient on the velocities and total seepage flows was tested through different case studies of the hypothetical spatial domain. 2D models in the vertical plane with horizontal ground level and impermeable floor were used. Also, a finite difference model was used. The results showed that anisotropy, compared to the case of isotropic medium, causes a decrease in seepage intensity under the same boundary conditions and geometric characteristics of the model if the filtration coefficient is higher in the horizontal direction and it causes an increase in seepage intensity if the filtration coefficient is higher in the vertical direction.

• Keywords: procjeđivanje; anizotropija; numerički model
• Keywords (english): seepage; anisotropy; numerical model
• Language: croatian
• URN:NBN: urn:nbn:hr:237:315166
• Study programme: Title: Civil Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-09-11 07:59:44