Matches in SemOpenAlex for { <https://semopenalex.org/work/W1544956961> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W1544956961 endingPage "788" @default.
- W1544956961 startingPage "727" @default.
- W1544956961 abstract "A semi-implicit and explicit numerical methods for the direct simulation of the three-dimensional Navier-Stokes equations with a free surface was developed. The efficiency of a novel multigrid flow solver permits the simulation of three-dimensional flows with free surfaces at low Reynolds and Froude numbers. The numerical schemes are used to study vortex rings and tubes interacting with walls and free surfaces. In the case of vortex rings interacting with a no-slip wall our observations of the formation of secondary and tertiary vortex rings agree qualitatively with experimental measurements. When a free surface is presented, the results are sensitive to the Froude number. For sufficiently low Froude numbers, the free surface behaves like a free-slip wall, which agrees qualitatively with experimental observations of vortex rings interacting with clean free surfaces. At intermediate Froude numbers, the normal incidence of a vortex ring with a clean free surface results in the formation of secondary vortex rings. Numerical studies of vortex tubes interacting with free surfaces show two possible mechanisms for the reconnection of vorticity with a free surface including primary and secondary vorticity reconnections. One type of primary vorticity reconnection should result in a cusp pattern on the free surface and secondary vorticity reconnections should manifest themselves as paired dimples on the free surface. The essential stages of the reconnection of secondary vorticity with the free surface are as follows: generation of helical vortex sheets by the primary vortex tube, stripping of the helical vortex sheets due to self-induced straining flows, attachment of the helical vortex sheets to the separated free-surface boundary layer, wrapping of U-shaped vortices around the primary vortex tube, feeding of boundary-layer vorticity into the U-vortices, and reconnection of U-vortices with the free surface. We provide evidence which suggests that the striations that may be observed on the free-surface above a pair of trailing tip vortices are caused by helical vorticity." @default.
- W1544956961 created "2016-06-24" @default.
- W1544956961 creator A5039702755 @default.
- W1544956961 creator A5060113946 @default.
- W1544956961 date "1991-01-01" @default.
- W1544956961 modified "2023-09-27" @default.
- W1544956961 title "A NUMERICAL STUDY OF THREE-DIMENSIONAL VISCOUS INTERACTIONS OF VORTICES WITH A FREE SURFACE" @default.
- W1544956961 hasPublicationYear "1991" @default.
- W1544956961 type Work @default.
- W1544956961 sameAs 1544956961 @default.
- W1544956961 citedByCount "2" @default.
- W1544956961 crossrefType "journal-article" @default.
- W1544956961 hasAuthorship W1544956961A5039702755 @default.
- W1544956961 hasAuthorship W1544956961A5060113946 @default.
- W1544956961 hasConcept C121332964 @default.
- W1544956961 hasConcept C140820882 @default.
- W1544956961 hasConcept C141069875 @default.
- W1544956961 hasConcept C168475990 @default.
- W1544956961 hasConcept C171889981 @default.
- W1544956961 hasConcept C176738000 @default.
- W1544956961 hasConcept C178760647 @default.
- W1544956961 hasConcept C182748727 @default.
- W1544956961 hasConcept C196558001 @default.
- W1544956961 hasConcept C200114574 @default.
- W1544956961 hasConcept C200902532 @default.
- W1544956961 hasConcept C206835866 @default.
- W1544956961 hasConcept C38349280 @default.
- W1544956961 hasConcept C56751440 @default.
- W1544956961 hasConcept C57879066 @default.
- W1544956961 hasConcept C74650414 @default.
- W1544956961 hasConcept C91432469 @default.
- W1544956961 hasConceptScore W1544956961C121332964 @default.
- W1544956961 hasConceptScore W1544956961C140820882 @default.
- W1544956961 hasConceptScore W1544956961C141069875 @default.
- W1544956961 hasConceptScore W1544956961C168475990 @default.
- W1544956961 hasConceptScore W1544956961C171889981 @default.
- W1544956961 hasConceptScore W1544956961C176738000 @default.
- W1544956961 hasConceptScore W1544956961C178760647 @default.
- W1544956961 hasConceptScore W1544956961C182748727 @default.
- W1544956961 hasConceptScore W1544956961C196558001 @default.
- W1544956961 hasConceptScore W1544956961C200114574 @default.
- W1544956961 hasConceptScore W1544956961C200902532 @default.
- W1544956961 hasConceptScore W1544956961C206835866 @default.
- W1544956961 hasConceptScore W1544956961C38349280 @default.
- W1544956961 hasConceptScore W1544956961C56751440 @default.
- W1544956961 hasConceptScore W1544956961C57879066 @default.
- W1544956961 hasConceptScore W1544956961C74650414 @default.
- W1544956961 hasConceptScore W1544956961C91432469 @default.
- W1544956961 hasLocation W15449569611 @default.
- W1544956961 hasOpenAccess W1544956961 @default.
- W1544956961 hasPrimaryLocation W15449569611 @default.
- W1544956961 hasRelatedWork W1487066477 @default.
- W1544956961 hasRelatedWork W1672974992 @default.
- W1544956961 hasRelatedWork W1987252295 @default.
- W1544956961 hasRelatedWork W1999853781 @default.
- W1544956961 hasRelatedWork W2000672229 @default.
- W1544956961 hasRelatedWork W2005293388 @default.
- W1544956961 hasRelatedWork W2010800238 @default.
- W1544956961 hasRelatedWork W2013036580 @default.
- W1544956961 hasRelatedWork W2042151614 @default.
- W1544956961 hasRelatedWork W2044541724 @default.
- W1544956961 hasRelatedWork W2045200194 @default.
- W1544956961 hasRelatedWork W2066014318 @default.
- W1544956961 hasRelatedWork W2087169448 @default.
- W1544956961 hasRelatedWork W2111634725 @default.
- W1544956961 hasRelatedWork W2160366966 @default.
- W1544956961 hasRelatedWork W2252637415 @default.
- W1544956961 hasRelatedWork W2593627298 @default.
- W1544956961 hasRelatedWork W3134448315 @default.
- W1544956961 hasRelatedWork W575808498 @default.
- W1544956961 hasRelatedWork W578456690 @default.
- W1544956961 isParatext "false" @default.
- W1544956961 isRetracted "false" @default.
- W1544956961 magId "1544956961" @default.
- W1544956961 workType "article" @default.