Matches in SemOpenAlex for { <https://semopenalex.org/work/W2247495148> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W2247495148 endingPage "78" @default.
- W2247495148 startingPage "67" @default.
- W2247495148 abstract "The option of scramjet-assisted access to space is a key focus at The University of Queensland’s Centre for Hypersonics. A three-stage, rocket-scramjet-rocket configuration is envisaged for fulfilment of this task, in which the flight envelope of the airbreathing second stage dictates the performance requirements of the complementary rocket stages. The payload mass fraction of the launch vehicle is strongly coupled with the performance of the airbreather. The present paper investigates oxygen enrichment as an option to extend the flight envelope of the second stage and thus increase the efficiency of the launch vehicle. Three Mach 12 REST scramjets are integrated with the airframe of a NASA winged-cone vehicle to assemble the second vehicle stage. Using multidisciplinary optimisation of this airbreather, the effect on the design and performance of the vehicle from supplementing the freestream oxygen flow by 10% and 20%, through the premixng of oxygen with fuel, is analysed. As suggested by a related study, the freestream dynamic pressure is held constant at q∞ = 100 kPa during the ascent of the airbreather. It is shown that within the current vehicle model, oxygen enrichment increases the final Mach number and altitude of the second stage airbreather, which results in a larger absolute payload mass. However, the masses of airbreather and first stage rocket are also greater for the vehicles using oxygen enrichment. As a result, the payload mass fraction is only marginally different to the baseline non-enriched vehicle. The current model is, however, limiting in several respects, including the assumption of a constant onboard oxygen mass and the coupling of critical optimisation parameters. With refinement of the model, it is plausible that oxygen enrichment can be used to further improve vehicle performance." @default.
- W2247495148 created "2016-06-24" @default.
- W2247495148 creator A5031984885 @default.
- W2247495148 creator A5039745260 @default.
- W2247495148 creator A5055895884 @default.
- W2247495148 creator A5059301301 @default.
- W2247495148 date "2011-01-01" @default.
- W2247495148 modified "2023-09-27" @default.
- W2247495148 title "Optimisation of scramjet-assisted access-to-space vehicles using oxygen enrichment" @default.
- W2247495148 hasPublicationYear "2011" @default.
- W2247495148 type Work @default.
- W2247495148 sameAs 2247495148 @default.
- W2247495148 citedByCount "0" @default.
- W2247495148 crossrefType "journal-article" @default.
- W2247495148 hasAuthorship W2247495148A5031984885 @default.
- W2247495148 hasAuthorship W2247495148A5039745260 @default.
- W2247495148 hasAuthorship W2247495148A5055895884 @default.
- W2247495148 hasAuthorship W2247495148A5059301301 @default.
- W2247495148 hasConcept C105923489 @default.
- W2247495148 hasConcept C121332964 @default.
- W2247495148 hasConcept C122824865 @default.
- W2247495148 hasConcept C127413603 @default.
- W2247495148 hasConcept C134066672 @default.
- W2247495148 hasConcept C146978453 @default.
- W2247495148 hasConcept C158379750 @default.
- W2247495148 hasConcept C165231844 @default.
- W2247495148 hasConcept C178790620 @default.
- W2247495148 hasConcept C182748727 @default.
- W2247495148 hasConcept C185592680 @default.
- W2247495148 hasConcept C187878255 @default.
- W2247495148 hasConcept C196558001 @default.
- W2247495148 hasConcept C2776911258 @default.
- W2247495148 hasConcept C31258907 @default.
- W2247495148 hasConcept C39432304 @default.
- W2247495148 hasConcept C41008148 @default.
- W2247495148 hasConcept C56278489 @default.
- W2247495148 hasConcept C57879066 @default.
- W2247495148 hasConcept C83104080 @default.
- W2247495148 hasConceptScore W2247495148C105923489 @default.
- W2247495148 hasConceptScore W2247495148C121332964 @default.
- W2247495148 hasConceptScore W2247495148C122824865 @default.
- W2247495148 hasConceptScore W2247495148C127413603 @default.
- W2247495148 hasConceptScore W2247495148C134066672 @default.
- W2247495148 hasConceptScore W2247495148C146978453 @default.
- W2247495148 hasConceptScore W2247495148C158379750 @default.
- W2247495148 hasConceptScore W2247495148C165231844 @default.
- W2247495148 hasConceptScore W2247495148C178790620 @default.
- W2247495148 hasConceptScore W2247495148C182748727 @default.
- W2247495148 hasConceptScore W2247495148C185592680 @default.
- W2247495148 hasConceptScore W2247495148C187878255 @default.
- W2247495148 hasConceptScore W2247495148C196558001 @default.
- W2247495148 hasConceptScore W2247495148C2776911258 @default.
- W2247495148 hasConceptScore W2247495148C31258907 @default.
- W2247495148 hasConceptScore W2247495148C39432304 @default.
- W2247495148 hasConceptScore W2247495148C41008148 @default.
- W2247495148 hasConceptScore W2247495148C56278489 @default.
- W2247495148 hasConceptScore W2247495148C57879066 @default.
- W2247495148 hasConceptScore W2247495148C83104080 @default.
- W2247495148 hasLocation W22474951481 @default.
- W2247495148 hasOpenAccess W2247495148 @default.
- W2247495148 hasPrimaryLocation W22474951481 @default.
- W2247495148 hasRelatedWork W1484206942 @default.
- W2247495148 hasRelatedWork W1987301545 @default.
- W2247495148 hasRelatedWork W2013789214 @default.
- W2247495148 hasRelatedWork W2043143838 @default.
- W2247495148 hasRelatedWork W2055394171 @default.
- W2247495148 hasRelatedWork W2084708560 @default.
- W2247495148 hasRelatedWork W2135097062 @default.
- W2247495148 hasRelatedWork W2316678966 @default.
- W2247495148 hasRelatedWork W2323212093 @default.
- W2247495148 hasRelatedWork W2508717579 @default.
- W2247495148 hasRelatedWork W2992337497 @default.
- W2247495148 hasRelatedWork W3030388669 @default.
- W2247495148 hasRelatedWork W3151660054 @default.
- W2247495148 hasRelatedWork W3179524767 @default.
- W2247495148 hasRelatedWork W3182338355 @default.
- W2247495148 hasRelatedWork W46905565 @default.
- W2247495148 hasRelatedWork W59274371 @default.
- W2247495148 hasRelatedWork W2167053200 @default.
- W2247495148 hasRelatedWork W2286355316 @default.
- W2247495148 hasRelatedWork W2339716682 @default.
- W2247495148 isParatext "false" @default.
- W2247495148 isRetracted "false" @default.
- W2247495148 magId "2247495148" @default.
- W2247495148 workType "article" @default.