Ignition experiments of hydrocarbons in a mach 8 shape-transitioning scramjet engine

Denman, Zachary J., Chan, Wilson Y. K., Brieschenk, Stefan, Veeraragavan, Ananthanarayanan, Wheatley, Vincent and Smart, Michael K. (2016) Ignition experiments of hydrocarbons in a mach 8 shape-transitioning scramjet engine. Journal of Propulsion and Power, . doi:10.2514/1.B36099


Author Denman, Zachary J.
Chan, Wilson Y. K.
Brieschenk, Stefan
Veeraragavan, Ananthanarayanan
Wheatley, Vincent
Smart, Michael K.
Title Ignition experiments of hydrocarbons in a mach 8 shape-transitioning scramjet engine
Journal name Journal of Propulsion and Power   Check publisher's open access policy
ISSN 0748-4658
1533-3876
Publication date 2016
Year available 2016
Sub-type Article (original research)
DOI 10.2514/1.B36099
Open Access Status Not Open Access
Total pages 10
Place of publication Reston, VA United States
Publisher American Institute of Aeronautics and Astronautics
Collection year 2017
Language eng
Formatted abstract
The design and testing of a cavity flameholder in a Mach 8 rectangular-to-elliptical shape-transitioning scramjet is presented. The experimental results presented are from the shock tunnel testing of the engine, fitted with the cavity combustor and fueled by gaseous ethylene, methane, and hydrogen. Axisymmetric simulations of a cavity in a diverging combustor were used to confirm that the cavity flow would fully establish in the limited test time available in our impulse facility. The cavity flameholder was designed such that autoignition and flameholding of gaseous ethylene–air mixtures should occur. Static pressure measurements were taken along the entire flowpath of engine. The engine was fueled at equivalence ratio ranging from 0.58<φ<0.71. Successful combustion and flameholding of ethylene and hydrogen was observed at a flight Mach number of 7.3 and a dynamic pressure of 53.5 kPa at an altitude of 28.7 km. Methane did not ignite at any of the conditions tested.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Fri, 05 Aug 2016, 10:24:42 EST by Anand Veeraragavan on behalf of School of Mechanical and Mining Engineering