2018
DOI: 10.3390/aerospace5010019
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Thrust Augmentation by Airframe-Integrated Linear-Spike Nozzle Concept for High-Speed Aircraft

Abstract: Abstract:The airframe-integrated linear-spike nozzle concept applied to an external nozzle for high-speed aircraft was evaluated with regard to the thrust augmentation capability and the trim balance. The main focus was on the vehicle aftbody. The baseline airframe geometry was first premised to be a hypersonic waverider design. The baseline aftbody case had an external nozzle comprised of a simple divergent nozzle and was hypothetically replaced with linear-spike external nozzle configurations. Performance ev… Show more

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Cited by 7 publications
(6 citation statements)
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References 39 publications
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“…Achieving such values for NOx emissions, will require new engine concepts to be developed, which will need at the same time to maintain the requirements of low thrust specific fuel consumption, high thrust-to-weight ratio, reliability, and operation at the low emissions region of the equivalence ratio Φ. Novel nozzle integration techniques can be investigated for that purpose [46] and the financial viability of a project to build a new engine suitable for supersonic passenger jets should need to be addressed as well.…”
Section: Discussionmentioning
confidence: 99%
“…Achieving such values for NOx emissions, will require new engine concepts to be developed, which will need at the same time to maintain the requirements of low thrust specific fuel consumption, high thrust-to-weight ratio, reliability, and operation at the low emissions region of the equivalence ratio Φ. Novel nozzle integration techniques can be investigated for that purpose [46] and the financial viability of a project to build a new engine suitable for supersonic passenger jets should need to be addressed as well.…”
Section: Discussionmentioning
confidence: 99%
“…Novel nozzle integration techniques can be investigated for that purpose [46]. Moreover, the economic viability of the undertaking to build a new engine capable to be incorporated at supersonic aircraft has to be examined as well.…”
Section: Discussionmentioning
confidence: 99%
“…The aerospike nozzle flowfield that corresponds to the experimental setup was simulated by a computational fluid dynamics (CFD) simulation. JAXA developed the CFD simulation tool at its Kakuda Space Center based on commercially available source code: Open source Field Operation And Manipulation (OpenFOAM) [19]. OpenFOAM has been earning a reputation for facilitating flexible customization for the flowfield of interest and offering robust calculation.…”
Section: Computational Fluid Dynamics and Code Validationmentioning
confidence: 99%
“…The computational accuracy was validated [19] by comparing the spike surface pressure distribution with that found by the experiment for the same configuration and flow conditions. The flow conditions were the same as those in the current experiment described above, and the NPR for this calculation was 49.5.…”
Section: Computational Fluid Dynamics and Code Validationmentioning
confidence: 99%
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