2013
DOI: 10.1177/0954410013515370
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Effects of upstream strut on the combustion of liquid kerosene in a model cavity scramjet

Abstract: A supersonic combustion organizer that consists of both cavity flameholder and strut injector was applied in a liquid-kerosene-fueled model scramjet. The experimental results indicated that the strut injection can improve the combustion performance. When the strut was mounted near the cavity, transverse injection from the strut gave the best performance. However, the excessive long distance between the upstream strut and the cavity led to upstream spreading of combustion to the isolator and pressure rise at th… Show more

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Cited by 18 publications
(5 citation statements)
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“…In the past decades, cavity flame holders have been used extensively in scramjets because of their superior flame stabilization and small resistance loss; 5,6 they also have applications in ramjets. 7 The strut injection can provide excellent fuel distribution and mixing performance; 8,9 therefore, it is beneficial to combine strut injectors with a cavity to reinforce fuel/air mixing and improve the combustion efficiency. Fureby et al 10 reported that a strut could produce a strong streamwise vortex to reinforce mixing.…”
Section: Introductionmentioning
confidence: 99%
“…In the past decades, cavity flame holders have been used extensively in scramjets because of their superior flame stabilization and small resistance loss; 5,6 they also have applications in ramjets. 7 The strut injection can provide excellent fuel distribution and mixing performance; 8,9 therefore, it is beneficial to combine strut injectors with a cavity to reinforce fuel/air mixing and improve the combustion efficiency. Fureby et al 10 reported that a strut could produce a strong streamwise vortex to reinforce mixing.…”
Section: Introductionmentioning
confidence: 99%
“…Firstly, the flush wall supersonic combustor equipped with center strut flameholding was studied experimentally by Refs. [4][5][6][7][8] in contrast with the cavity [4,5], and the fuel injection strategy between the strut and the wall was conducted by experiment [6], and the effects of upstream strut on the combustion of liquid kerosene in a model cavity scramjet was discussed [7,8]. For the novel supersonic combustor with flush wall, the combustion mode transformation characteristic needs to be investigated deeply.…”
Section: Introductionmentioning
confidence: 99%
“…Since the strut injection can provide good fuel distribution and mixing performance, 10 it is beneficial to combine strut injectors with a cavity to reinforce fuel/air mixing and improve combustion efficiency. 11,12 Hsu et al.…”
Section: Introductionmentioning
confidence: 99%
“…7,8 Also, the cavity flame holders have applications in ramjets, attributed to the advantage of less demand for ignition energy than V-gutter structure. 9 Since the strut injection can provide good fuel distribution and mixing performance, 10 it is beneficial to combine strut injectors with a cavity to reinforce fuel/air mixing and improve combustion efficiency. 11,12 Hsu et al 13 found that placing a strut in front of the cavity is helpful in achieving better flame stabilization with methods of OH-planar laserinduced fluorescence and shadowgraphy.…”
Section: Introductionmentioning
confidence: 99%