Solid Fuel Ramjet Combustor Design

Krishnan, S.; George, Philmon

doi:10.1016/s0376-0421(98)00005-0

Cited by 86 publications

(22 citation statements)

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“…Combustion efficiency is an important indication of the engine ability to employ heat energy. It has been defined differently by various investigators [20]. In this study, characteristic velocity of the water ramjet engine was adopted to calculate its combustion efficiency.…”

Section: Data Processing Methodsmentioning

confidence: 99%

Performance study of a water ramjet engine

Huang

Xia

et al. 2011

Sci. China Technol. Sci.

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A performance study of a water ramjet engine is described. The engine is powered by the reaction of a magnesium-based propellant and ingested water. In this study, a solid propellant, which consisted of a large percentage of magnesium, a binder and a small amount of oxidant, was used as a hydro reactive fuel. Cold water was injected into the combustion chamber as a main oxidant. A scaled-down experimental engine was tested in a direct-connect ground testing system to characterize the factors influencing the engine performance. The results show that the increasing of total water/fuel ratio, an addition of secondary water intake along the combustion chamber, a larger magnesium content in the solid propellant, a smaller primary water injection angle towards the coming main flow, and a higher primary injection pressure were all able to promote the engine performance. The maximum engine performance was obtained in test 08, and with all tests, an appropriate set of parameters and conditions for the optimum engine performance were determined underwater propulsion system, ramjet engine, magnesium, water, combustion, performance, experiment Citation:Huang L Y, Xia Z X, Hu J X, et al. Performance study of a water ramjet engine.

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Section: Data Processing Methodsmentioning

confidence: 99%

Performance study of a water ramjet engine

Huang

Xia

et al. 2011

Sci. China Technol. Sci.

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“…Complicated interactions among the patterns are introduced by the shedding vortices from the shear layer, which are relevant to the issue of instability [1,2]. Nonetheless, attributed to the diffusion-controlled and distributed energy release typical of the non-premixed solid fuel combustion investigated in this study, the concern of instability is less prominent comparing to its liquid-fuel counterpart [3].…”

Section: Introductionmentioning

confidence: 99%

“…As far as the ignition in combustors is concerned, most of the studies investigate into the effects of combustor geometry (step height) and fuel composition on the ignition limit [16][17][18][19][20][21], while some characteristics associated with the ignition transient were revealed [22]. On the other hand, similar to actual solid fuel ramjet engines, most of the research platforms utilize external igniters to initiate the combustion [3].…”

Section: Introductionmentioning

confidence: 99%

“…Except the confined boundaries, the diffusion flame in a sudden-expansion combustor is similar to the non-premixed jet flame [3], for which some previous literatures have addressed the dominance of vortices. Adequate mixing between the fuel vapor and the oxidizing stream is critical to the ignition, which was verified from the perspective of ''the most reactive mixture fraction" in Ref.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transient flame spread during convective ignition of solid fuel in a sudden-expansion combustor

Yang¹,

Hsiao²,

Lin³

2009

Combustion and Flame

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“…1. A number of researchers have attempted numerical simulation of the SFRJ combustion chamber; however all of them focused on the flow field within the chamber after the motor ignition [1][2][3][4][5][6][7][8][9][10][11]. This is due to complexities in simulating dynamics of the ignition process of this type of motors.…”

Section: Introductionmentioning

confidence: 99%