Određivanje geometrijskih obilježja vodnog skoka

master's thesis

• Title (english): Determination of geometric characteristics of hydraulic jump
• Author: Hanna Miličević
• Mentor: Goran Lončar (mentor)
• Committee member: Damir Bekić (predsjednik povjerenstva)
• Committee member: Goran Gjetvaj (član povjerenstva)
• Committee member: Goran Lončar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2020-07-09, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

Hidraulički vodni skok je pojava koja u posljednjim godinama dobiva značajnu pažnju, te se intenzivno proučava zbog mogućnosti disipacije velike količine energije toka vode. Ipak, važnost teme još uvijek potrebuje daljnje napore znanstvene zajednice u istraživanju ove teme. Predviđanje duljine vodnog skoka još je uvijek otvoreno pitanje, budući da postojeće znanje o toj temi ne pokriva sve moguće konfiguracije i granične uvjete koji se obično mogu naći u praktičnoj primjeni. Konkretno, učinci hrapavosti i nagiba dna, geometrije kanala i koncentracije zraka na omjer spregnutih dubina još uvijek nisu u potpunosti shvaćeni. Cilj ovog rada je analiza utjecaja nagiba dna kanala na omjer spregnutih dubina. U provedenoj analizi korištene su tehnike fizikalnog i numeričkog modeliranja a dobiveni rezultati su uspoređivani s rezultatima dobivenim primjenom empiričkih obrazaca različitih autora.

Abstract (english)

Hydraulic jump is a phenomenon which has received significant attention in recent years and it is still studied because of its capacity to dissipate a considerable amount of the flow energy. Nevertheless, the importance of the topic still requires significant efforts from the scientific community. Namely, the prediction of the main lengths of the hydraulic jump are still an open question, as the actual knowledge on the topic does not cover all the possible configuration sand boundary conditions which can usually be found in practical applications. In particular, the effects of bed roughness, bed slope, channel geometry, and air concentration on the conjugate depths ratio are still not fully understood. The present work aims to furnish analysis focused on the bed slope on the conjugate depth ratio. In the scope of conducted analyses physical and numerical model techniques are used, and obtained results are compared with the results of empirical equations proposed by different authors.

• Keywords: vodni skok; nagib kanala; fizikalni model; numerički model
• Keywords (english): hydraulic jump; sloping channel; physical model; numerical model
• Language: croatian
• URN:NBN: urn:nbn:hr:237:744014
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2020-11-24 07:29:02