TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

A ramrocket engine combines a rocket-cycle with a ramjet cycle. The "heart" of such a rocket-based combined-cycle engine is the ejector where the propulsive streams of both cycles mix. The propulsive efficiency of the ramrocket will greatly depend on the losses incurred in the ejector of the engine. In this project, computational fluid dynamic methods are employed to numerically simulate the turbulent mixing of supersonic/subsonic flows in the presence of finite-rate kerosene/air combustion. The effects of geometry of the ejector and afterburning in the rocket exhaust on flow losses in the ejector and its compression ratio are explored. The ramrocket is a candidate for "next generation" air-breathing reusable space launchers  2, record 1, English, - ejector

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Partie d'un moteur à ergols liquides, constituée de la chambre de combustion, de ses injecteurs et de la tuyère.  2, record 1, French, - %C3%A9jecteur

Record number: 1, Textual support number: 1 CONT

Les moteurs Viking du premier étage, du deuxième étage et, le cas échéant, des Propulseurs d'Appoint à Liquides (PAL) des lanceurs Ariane 4, se composent : [...] D'une tuyère de détente, dans laquelle les gaz acquièrent la vitesse d'éjection nécessaire à l'obtention de l'effet propulsif, plus de 2500 m/s. Cette tuyère réalisée en alliage de cobalt comporte un col en SEPHEN, matériau composite (résine phénolique - fibre de silice) réalisé par Snecma Moteurs. L'ensemble du foyer et de la tuyère constitue l'éjecteur. Ses parois sont refroidies par un film d'UH25 alimenté par des canaux complémentaires situés en partie basse de l'injecteur.  3, record 1, French, - %C3%A9jecteur

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A ramjet in which the combustion takes place within a supersonic airflow.  3, record 2, English, - scramjet

Record number: 2, Textual support number: 1 CONT

A ScramJet is a "Supersonic Combustion Ramjet" this device is built to function very similarly to a ramjet with the exception that it may burn hydrogen as a fuel instead of conventional jet-fuel. Because of the different fuel and an optmized design, a ScramJet engine is capable of hypersonic speeds of Mach 6 and above.  4, record 2, English, - scramjet

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The most promising hypersonic technologies are hybrid engines known as airturboramjets. At low speeds, the engine would use turbines to compress the air before it mixes it with fuel. At higher speeds, the tremendous force of the incoming supersonic airstream itself would become the compressor.  2, record 3, English, - scramjet%20engine

Record number: 3, Textual support number: 1 OBS

For instance, the scramjet(supersonic combustion ramjet).  1, record 3, English, - scramjet%20engine

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Moteur aérobie qui permet de limiter le poids de combustible embarqué, car il utilise l'oxygène de l'air, alors que les moteurs fusées actuels doivent emporter leur carburant.  1, record 3, French, - moteur%20hypersonique

Record number: 3, Textual support number: 1 PHR

Moteur hypersonique à cycles combinés statoréacteurs-superstato-réacteurs.  2, record 3, French, - moteur%20hypersonique

Record 3,  Textual support,  Spanish