Vpliv materiala stene na dinamiko kavitacijskega mehurčka in udarnega vala

zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program

Aleksandar Kočoski (Author), Matevž Dular (Mentor), Martin Petkovšek (Co-mentor)

Abstract

Pojem kavitacija opisuje pojav in aktivnost mehurčkov v kapljevini zaradi padca tlaka. Razumevanje pojava omogoči izogibanje škodi in konstruktivno izkoriščanje destruktivne moči. V nalogi je analiziran vpliv materiala bližnje stene na dinamiko kavitacijskega mehurčka in udarnega vala. S hitro kamero je bil posnet razvoj osamljenega lasersko ustvarjenega mehurčka v mirujoči vodi na različnih oddaljenostih od stekla in pleksi stekla. Predstavljeni so kvantitativni in kvalitativni rezultati računalniške obdelave slik. Čas kolapsa je primerjan s teoretičnim po Rayleigh-Plessetovi enačbi.

Keywords

diplomske naloge;kavitacija;dinamika mehurčka;hitra kamera;stena;steklo;pleksi steklo;Rayleighjev čas kolapsa;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[A. Kočoski]
UDC:	532.528:666.15:004.932(043.2)
COBISS:	73046531
Views:	3059
Downloads:	818
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	The influence of the material of a solid surface on the dynamics of a cavitation bubble and shock wave
Secondary abstract:	The term cavitation describes the occurrence and activity of bubbles in a liquid due to a pressure drop. Understanding the phenomenon enables avoiding damage and constructive use of the destructive power. This thesis analyzes the influence of the material of a nearby solid surface on the dynamics of a cavitation bubble and shock wave. The development of a single laser-generated bubble in quiescent water at various distances from glass and plexiglass was recorded with a high-speed camera. Quantitative and qualitative results of computer image processing are presented. The collapse time is compared with the theoretical time according to the Rayleigh-Plesset equation.
Secondary keywords:	thesis;cavitation;bubble dynamics;high-speed camera;solid surface;glass;plexiglass;Rayleigh collapse time;
Type (COBISS):	Final paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XVII, 50 f.
ID:	13240390