Status of the FESTIP rocket propulsion technology programme

Immich, H.; Caporicci, Marco

doi:10.2514/6.1997-3311

Cited by 26 publications

(17 citation statements)

References 2 publications

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“…On these assumptions, the aerospike nozzle (with primary nozzle area ratio c = 1) contour depends only on specific heat ratio and total area ratio all . An aerospike nozzle contour designed by Angelino method is called an ideal one, having perfect performance in uniform flowing condition, and has already been widely adopted [4,18,19]. However, a contour designed by Angelino method is a series of discrete points, so it is difficult to keep the profile drawn by these points continuous and smooth rigorously or optimize contour configuration for maximum overall performance.…”

Section: Contour Design and Optimizationmentioning

confidence: 99%

Aerospike nozzle contour design and its performance validation

2009

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Section: Contour Design and Optimizationmentioning

confidence: 99%

Aerospike nozzle contour design and its performance validation

2009

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“…In Europe, a series of investigations has been conducted in the frame of the FESTIP program 2,3) on various altitude adaptive nozzles. The dual-bell nozzle came out to be the most promising concept.…”

Section: Introductionmentioning

confidence: 99%

Influence of the Test Environment on the Transition of Dual-Bell Nozzles

Génin

Stark

2012

AEROSPACE TECHNOLOGY JAPAN

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The dual bell nozzle offers a simple and efficient altitude adaption through its contour inflection, which insures symmetrical and controlled separation at sea level and a large area ratio at high altitude. The understanding of the transition from one operating mode to the other is the key to its prediction. Intensive cold flow investigation has led to an empirical criterion for a precise transition prediction. However, the testing conditions may have a great influence on the actual transition. The temperature of the flow and the nozzle wall, especially when driving test series, can shift the nozzle pressure ratio leading to the transition. A test campaign in a high altitude chamber has also shown the dependence of the transition condition with the chamber pressure, i.e. with the density of the separated backflow. For a reliable prediction of the dual-bell nozzle flow behavior, both on test facility and in real flight conditions, all these influences have to be identified and taken into account.

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“…In this framework a great interest has been devoted to the linear plug nozzle, which has been the subject of several studies in the last decade [1][2][3][4][5][6]. The plug nozzle is an external-expansion nozzle that yields self-adaptation of the exhaust jet to varying ambient pressure ratios, in a certain range of the launcher trajectory.…”

Section: Introductionmentioning

confidence: 99%