Matches in SemOpenAlex for { <https://semopenalex.org/work/W1888397570> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W1888397570 abstract "In this thesis we investigate the development and use of numerical methods to study astrophysical problems, particularly the formation and evolution of objects via gravitational instability in circumstellar discs.We begin with a comprehensive overview of the development, validation and optimisation of numerical tools. These formed the basis of SEREN, a Smoothed Particle Hydrodynamics (SPH) code for modelling self-gravitating fluid dynamics. SEREN has been rigorously tested and optimised, and is now being used for high-performance research in various areas of star formation.We then consider in some depth the problems associated with shocks, instabilities and shear flows in numerical simulations, detailing why such problems arise and what can be done to alleviate them.Finally we model circumstellar discs, investigating the influence of both physical and computational parameters upon the formation of objects via gravitational instability. We then model the interaction of discs with stars and other disc systems, investigating the influence of the orbital parameters upon the evolution of a marginally stable disc.Ultimately we find that gravitational instability in massive extended circumstellar discs is a viable mechanism for the formation of dwarfs and massive planets, and provides an explanation for the brown dwarf desert and free-floating planets.We also find that while disc-star and disc-disc interactions might produce accretion bursts and exert an influence over the disc evolution, they are not a likely mechanism for triggering fragmentation in marginally stable discs." @default.
- W1888397570 created "2016-06-24" @default.
- W1888397570 creator A5046631319 @default.
- W1888397570 date "2011-01-01" @default.
- W1888397570 modified "2023-09-24" @default.
- W1888397570 title "Numerical Simulation of Astrophysical Gas Dynamics, and Application to the Gravitational Stability of Protostellar Discs" @default.
- W1888397570 hasPublicationYear "2011" @default.
- W1888397570 type Work @default.
- W1888397570 sameAs 1888397570 @default.
- W1888397570 citedByCount "0" @default.
- W1888397570 crossrefType "dissertation" @default.
- W1888397570 hasAuthorship W1888397570A5046631319 @default.
- W1888397570 hasConcept C111919701 @default.
- W1888397570 hasConcept C118396296 @default.
- W1888397570 hasConcept C121332964 @default.
- W1888397570 hasConcept C122564879 @default.
- W1888397570 hasConcept C124017977 @default.
- W1888397570 hasConcept C125857072 @default.
- W1888397570 hasConcept C150846664 @default.
- W1888397570 hasConcept C163479331 @default.
- W1888397570 hasConcept C173740370 @default.
- W1888397570 hasConcept C191015642 @default.
- W1888397570 hasConcept C207821765 @default.
- W1888397570 hasConcept C2776401274 @default.
- W1888397570 hasConcept C2776761751 @default.
- W1888397570 hasConcept C41008148 @default.
- W1888397570 hasConcept C44870925 @default.
- W1888397570 hasConcept C51244244 @default.
- W1888397570 hasConcept C57879066 @default.
- W1888397570 hasConcept C74650414 @default.
- W1888397570 hasConcept C94130837 @default.
- W1888397570 hasConceptScore W1888397570C111919701 @default.
- W1888397570 hasConceptScore W1888397570C118396296 @default.
- W1888397570 hasConceptScore W1888397570C121332964 @default.
- W1888397570 hasConceptScore W1888397570C122564879 @default.
- W1888397570 hasConceptScore W1888397570C124017977 @default.
- W1888397570 hasConceptScore W1888397570C125857072 @default.
- W1888397570 hasConceptScore W1888397570C150846664 @default.
- W1888397570 hasConceptScore W1888397570C163479331 @default.
- W1888397570 hasConceptScore W1888397570C173740370 @default.
- W1888397570 hasConceptScore W1888397570C191015642 @default.
- W1888397570 hasConceptScore W1888397570C207821765 @default.
- W1888397570 hasConceptScore W1888397570C2776401274 @default.
- W1888397570 hasConceptScore W1888397570C2776761751 @default.
- W1888397570 hasConceptScore W1888397570C41008148 @default.
- W1888397570 hasConceptScore W1888397570C44870925 @default.
- W1888397570 hasConceptScore W1888397570C51244244 @default.
- W1888397570 hasConceptScore W1888397570C57879066 @default.
- W1888397570 hasConceptScore W1888397570C74650414 @default.
- W1888397570 hasConceptScore W1888397570C94130837 @default.
- W1888397570 hasLocation W18883975701 @default.
- W1888397570 hasOpenAccess W1888397570 @default.
- W1888397570 hasPrimaryLocation W18883975701 @default.
- W1888397570 hasRelatedWork W1636424515 @default.
- W1888397570 hasRelatedWork W1648650795 @default.
- W1888397570 hasRelatedWork W1978097461 @default.
- W1888397570 hasRelatedWork W1998370248 @default.
- W1888397570 hasRelatedWork W2006220357 @default.
- W1888397570 hasRelatedWork W2047571415 @default.
- W1888397570 hasRelatedWork W2069728214 @default.
- W1888397570 hasRelatedWork W2188555526 @default.
- W1888397570 hasRelatedWork W2288654673 @default.
- W1888397570 hasRelatedWork W2327479693 @default.
- W1888397570 hasRelatedWork W2779626617 @default.
- W1888397570 hasRelatedWork W2901409369 @default.
- W1888397570 hasRelatedWork W2914395288 @default.
- W1888397570 hasRelatedWork W2973371215 @default.
- W1888397570 hasRelatedWork W3099001056 @default.
- W1888397570 hasRelatedWork W3101142859 @default.
- W1888397570 hasRelatedWork W3117257824 @default.
- W1888397570 hasRelatedWork W3127872109 @default.
- W1888397570 hasRelatedWork W3187690711 @default.
- W1888397570 hasRelatedWork W3192664033 @default.
- W1888397570 isParatext "false" @default.
- W1888397570 isRetracted "false" @default.
- W1888397570 magId "1888397570" @default.
- W1888397570 workType "dissertation" @default.