About: Collapse and fission mechanisms of ultrasonically excited cavitation bubbles near a solid boundary in Newtonian liquid

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About: Collapse and fission mechanisms of ultrasonically excited cavitation bubbles near a solid boundary in Newtonian liquid Goto Sponge NotDistinct Permalink

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rdfs:seeAlso	http://www.isvav.cz/projectDetail.do?rowId=GAP101/10/1428
Description	The aim of the project is the basic research into the mechanism of collapse and fission (disintegration) of individual cavitation bubbles near a solid boundary in Newtonian liquids. The collapse of a single ultrasonically excited vapor bubble will be studied using high-speed cinematography (up to 3.2 mil. fps) for different sizes, contents and distances of the bubble from the solid boundary. The impact loads on the solid surface will be measured using a PVDF film and the coupling between the collapse pattern and the pressure forces exerted on the solid boundary will be studied. In addition, the collapse and fission mechanisms will be studied theoretically and numerically and a model of cavitation erosion potential will be developed from the collected experimental evidence. (en) Cílem projektu je základní výzkum fyzikálních mechanizmů kolapsu a štěpení (rozpadu) individuálních kavitačních bublin v blízkosti pevné stěny v Newtonské kapalině. Kolaps osamocené, ultrazvukem buzené parní bubliny bude studován vysokorychlostní kinematografií (s frekvencí až 3,2 milionů snímků za sekundu) pro různé velikosti, složení a vzdálenosti bubliny od pevné stěny. Impaktní zatížení pevné stěny bude měřeno pomocí filmu PVDF a bude studována závislost tlakových sil působících na povrch na režimu kolapsu. Mechanizmy nesymetrického kolapsu a štěpení budou studovány také teoreticky a numericky a na základě shromážděných experimentálních poznatků bude vyvinut vylepšený model erozního potenciálu.
Title	Collapse and fission mechanisms of ultrasonically excited cavitation bubbles near a solid boundary in Newtonian liquid (en) Mechanizmy kolapsu a štěpení ultrazvukem buzených kavitačních bublin v blízkosti pevné stěny v Newtonské kapalině
skos:notation	GAP101/10/1428
http://linked.open...avai/cep/aktivita	Standard projects
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http://linked.open...datumDodatniDoRIV	2014-09-08 (xsd:date)
http://linked.open...i/cep/druhSouteze	VS - Veřejná soutěž ve výzkumu a vývoji
http://linked.open...ep/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open.../cep/fazeProjektu	99757182
http://linked.open...ai/cep/hlavniObor	BK - Mechanika tekutin
http://linked.open...vai/cep/kategorie	ZV - Základní výzkum
http://linked.open.../cep/klicovaSlova	bubble collapse cavitation (en)
http://linked.open...ep/partnetrHlavni	Ústav termomechaniky AV ČR, v.v.i.
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http://linked.open...iciPoslednihoRoku	2014
http://linked.open...atUdajeProjZameru	2014
http://linked.open.../vavai/cep/soutez	SGA02010GA-ST
http://linked.open...usZobrazovaneFaze	DRRVK
http://linked.open...ai/cep/typPojektu	P - Projekt výzkumu a vývoje financovaný ze státního rozpočtu
http://linked.open...ep/ukonceniReseni	2014-12-31 (xsd:date)
http://linked.open...ep/zahajeniReseni	2010-01-01 (xsd:date)
http://linked.open...tniCyklusProjektu	ZBK.K
is http://linked.open...vavai/riv/projekt of	Nucleation rate in binary cavitating systems - A comparison of experimental data and classical nucleation theory predictions PERTURBANCE ANALYSIS AND FISSION MODEL OF COLLAPSING BUBBLE Design of Experimental Setup for Investigate of Cavitation Bubble Collapse Close to a Solid Wall Experimental and numerical analysis of cavitating flow around a hydrofoil A criterion for the occurrence of bubble fission and its modeling CFD analysis of unsteady cavitation phenomena in multistage pump with inducer Scaled nucleation theory for bubble nucleation of lower alkanes Collapse of spark-generated cavitation bubble near a solid wall Modeling bubble collapse aggressiveness in traveling bubble cavitation using bubble breakup model Design of experimental setup for investigation of cavitation bubble collapse close to a solid wall Collapse of a cavitation bubble generated by low voltage discharge in water Design of experimental setup for investigation of cavitation bubble collapse close to a solid wall DESIGN OF EXPERIMENTAL SETUP FOR INVESTIGATION OF CAVITATION BUBBLE COLLAPSE CLOSE TO A SOLID WALL Energy dissipated during the cavitation bubble collapse close to a solid wall Collapse of a cavitation bubble generated by low voltage discharge in water Collapse of a cavitation bubble generated by low voltage discharge in water Experimental and numerical analysis of cavitating flow around a hydrofoil EXPERIMENTAL AND NUMERICAL ANALYSIS OF CAVITATING FLOW AROUND A HYDROFOIL Identification of collapse patterns of cavitation bubbles close to a solid wall MEASUREMENT OF THE IMPUSLIVE FORCE GENERATED BY COLAPSING BUBBLE CLOSE TO A SOLID BOUNDARY MEASUREMENT OF THE IMPUSLIVE FORCE GENERATED BY COLAPSING BUBBLE CLOSE TO A SOLID BOUNDARY Cavitation processes in binary systems – the effect of a dissolved gas on the nucleation rate described by the classical nucleation theory Measurement of the inpulsive force generated by collapsing bubble close to a solid boundary Measurement of the impulsive force generated by colapsing bubble close to a solid boundary Variational formulation of continuum mechanics based on the lagrangian with the friction force Zařízení pro optické měření velikosti bublin v proudící kapalině Komora pro výzkum kolapsu teplem generované kavitační bubliny Nucleation rates in cavitation of binary systems – predictions of the classical nucleation theory
is http://linked.open...vavai/cep/projekt of	http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2010/ico%3A61388998 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2010/orjk%3A24210 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2011/ico%3A61388998 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2011/orjk%3A24210 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2012/ico%3A61388998 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2012/orjk%3A24210 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2013/ico%3A61388998 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2013/orjk%3A24210 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2014/ico%3A61388998 http://linked.opendata.cz/resource/domain/vavai/cep/ucast/GAP101%2F10%2F1428/2014/orjk%3A24210

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