Matches in SemOpenAlex for { <https://semopenalex.org/work/W6329761> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W6329761 abstract "Cavitation is the spontaneous vaporisation of a liquid to its gaseous state due to the local absolute pressure falling to the liquid's vapour pressure (Douglas, Gasiorek et al. 1995). Cavitation is present in a wide range of mechanical systems ranging from ship screws to journal bearing. Generally, cavitation is unavoidable and may cause considerable damage and efficiency losses to these systems. This thesis considers hydraulic systems specifically, and uses a modified Greens equation to develop a boundary integral method to simulate the effect that suspended solid bodies have on a single cavitation bubble. Because of the limitations of accurately modelling cavitation bubbles beyond touchdown, results are only presented for cases up to touchdown. The aim of the model is to draw insight into the reasons there is a measurable change in cavitation erosion rate with increasing oil-in-water emulsion percentage. This principle was extended to include the effect that ingested particulates may have on cavitation in hydraulic machinery. Two particular situations are modelled; the first consists of stationary rigid particles in varying proximity to a cavitation bubble near a rigid boundary. The second case is similar; however the suspended particle is allowed to move under the influence of the pressure differential caused by the expanding/contracting cavitation bubble. Numerous characteristics of the domain are considered, including domain pressures and fluid field motion, and individual boundary surface characteristics. The conclusion of the thesis is that solid bodies, either stationary or moving, have little effect on the cavity from an energy perspective. Regardless of size or density, all energy transferred from the cavity to the solid body is returned indicating that there is no net change. As this energy is ultimately responsible for the peak pressure experienced by the domain (and hence responsible for eroding the rigid boundary) as the cavity rebounds, it then serves that a cavity with a solid body will rebound at the same pressure as a cavity without a suspended body present. If this is coupled with the observation that the cavity centroid at touchdown is largely unaffected by the presence of a suspension, then it would appear that the bubble near a solid would rebound at a very similar position as a cavity without a solid. Consequently, the damage potential of a cavity is unaffected by a suspension. However, there is one point of contention as the profile of the re-entrant jet of the cavity is altered by the presence of a suspension. As energy is radiated away from the cavity during penetration, it is possible that the shape of the jet may alter the rate that energy is radiated away during penetration. However, this requires further research to be definitive." @default.
- W6329761 created "2016-06-24" @default.
- W6329761 creator A5004579872 @default.
- W6329761 date "2003-01-01" @default.
- W6329761 modified "2023-09-24" @default.
- W6329761 title "Modelling the effect of suspended bodies on cavitation bubbles near a rigid boundary using a boundary integral approach" @default.
- W6329761 cites W1539847042 @default.
- W6329761 cites W1587475006 @default.
- W6329761 cites W1596967860 @default.
- W6329761 cites W1877710393 @default.
- W6329761 cites W1965990140 @default.
- W6329761 cites W1984728657 @default.
- W6329761 cites W1990601237 @default.
- W6329761 cites W1998509683 @default.
- W6329761 cites W2038525683 @default.
- W6329761 cites W2056771718 @default.
- W6329761 cites W2069869074 @default.
- W6329761 cites W2095559382 @default.
- W6329761 cites W2104978259 @default.
- W6329761 cites W2116159141 @default.
- W6329761 cites W2146444150 @default.
- W6329761 cites W2154420431 @default.
- W6329761 cites W2159235260 @default.
- W6329761 cites W2167274974 @default.
- W6329761 cites W2168301081 @default.
- W6329761 cites W246572111 @default.
- W6329761 cites W2898916015 @default.
- W6329761 cites W3009348430 @default.
- W6329761 cites W3028124407 @default.
- W6329761 cites W327212731 @default.
- W6329761 cites W593053827 @default.
- W6329761 cites W622054957 @default.
- W6329761 cites W635261339 @default.
- W6329761 cites W642798280 @default.
- W6329761 cites W2113274198 @default.
- W6329761 hasPublicationYear "2003" @default.
- W6329761 type Work @default.
- W6329761 sameAs 6329761 @default.
- W6329761 citedByCount "0" @default.
- W6329761 crossrefType "dissertation" @default.
- W6329761 hasAuthorship W6329761A5004579872 @default.
- W6329761 hasConcept C121332964 @default.
- W6329761 hasConcept C134306372 @default.
- W6329761 hasConcept C157915830 @default.
- W6329761 hasConcept C192562407 @default.
- W6329761 hasConcept C206835866 @default.
- W6329761 hasConcept C207057113 @default.
- W6329761 hasConcept C33923547 @default.
- W6329761 hasConcept C38349280 @default.
- W6329761 hasConcept C57879066 @default.
- W6329761 hasConcept C62354387 @default.
- W6329761 hasConceptScore W6329761C121332964 @default.
- W6329761 hasConceptScore W6329761C134306372 @default.
- W6329761 hasConceptScore W6329761C157915830 @default.
- W6329761 hasConceptScore W6329761C192562407 @default.
- W6329761 hasConceptScore W6329761C206835866 @default.
- W6329761 hasConceptScore W6329761C207057113 @default.
- W6329761 hasConceptScore W6329761C33923547 @default.
- W6329761 hasConceptScore W6329761C38349280 @default.
- W6329761 hasConceptScore W6329761C57879066 @default.
- W6329761 hasConceptScore W6329761C62354387 @default.
- W6329761 hasLocation W63297611 @default.
- W6329761 hasOpenAccess W6329761 @default.
- W6329761 hasPrimaryLocation W63297611 @default.
- W6329761 hasRelatedWork W173363178 @default.
- W6329761 hasRelatedWork W1968833126 @default.
- W6329761 hasRelatedWork W1990366136 @default.
- W6329761 hasRelatedWork W2044088350 @default.
- W6329761 hasRelatedWork W2044484934 @default.
- W6329761 hasRelatedWork W2050961625 @default.
- W6329761 hasRelatedWork W2078520021 @default.
- W6329761 hasRelatedWork W2113146374 @default.
- W6329761 hasRelatedWork W2130198305 @default.
- W6329761 hasRelatedWork W2133826359 @default.
- W6329761 hasRelatedWork W2154629072 @default.
- W6329761 hasRelatedWork W2285766686 @default.
- W6329761 hasRelatedWork W2326901477 @default.
- W6329761 hasRelatedWork W2914147782 @default.
- W6329761 hasRelatedWork W3080872117 @default.
- W6329761 hasRelatedWork W3099580978 @default.
- W6329761 hasRelatedWork W42217256 @default.
- W6329761 hasRelatedWork W50910125 @default.
- W6329761 hasRelatedWork W2147323653 @default.
- W6329761 hasRelatedWork W2833456212 @default.
- W6329761 isParatext "false" @default.
- W6329761 isRetracted "false" @default.
- W6329761 magId "6329761" @default.
- W6329761 workType "dissertation" @default.