Numerical modelling of porous injection in a radical farming scramjet

Capra, Bianca R., Bpyce, Russell R., & Brieschenk, Stefan (2012) Numerical modelling of porous injection in a radical farming scramjet. In 28th International Congress of the Aeronautical Sciences, 23-28 September 2012, Brisbane Convention & Exhibition Centre, Brisbane, QLD.

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A numerical investigation of the behaviour of fuel injection through a porous surface in an inlet-fuelled, radial-farming scramjet is presented. The performance of porous fuel injection is compared to discrete port hole injection at an equivalence ratio of φ ≈ 0.4 for both cases. The comparison is performed at a Mach 6.5 flow condition with a total specific enthalpy of 4.3 MJ/kg. The numerical results are compared to experiments performed in the T4 shock tunnel where available. The presented results demonstrate for the first time, that porous fuel injection has the potential to outperform port hole injectors in scramjet engines in terms of fuel-air mixing, ignition delays and achievable combustion efficiencies despite reduced fuel penetration heights.

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ID Code: 70314
Item Type: Conference Paper
Refereed: No
Keywords: Porous Injection, Scramjets, Engine Performance
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AEROSPACE ENGINEERING (090100) > Hypersonic Propulsion and Hypersonic Aerodynamics (090107)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Computational Fluid Dynamics (091501)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 Please consult the authors
Deposited On: 22 Apr 2014 02:05
Last Modified: 30 Apr 2014 01:55

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