TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Actuator disk theory. The simplest model of a horizontal axis wind turbine(HAWT) is one in which the turbine rotor is replaced by an actuator disk which removes energy from the wind. As the wind strikes the actuator disk on the upwind side, the pressure rises there, and the wind is deflected away from the disk, causing a large wake downstream of the disk. Actuator disk theory relates the pressure drop across the disk to the change in wake size and the energy which can be extracted from the wind.  2, record 1, English, - actuator%20disk%20theory

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Concept utilisé en dynamique des fluides afin d'évaluer notamment le rendement du rotor d'une éolienne à axe horizontal, en remplaçant ce dernier par un disque actuateur pour extraire l'énergie du vent.  2, record 1, French, - th%C3%A9orie%20du%20disque%20actuateur

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A vortex wake model used to assess the performance of horizontal axis wind turbines by partitioning the flow field downstream of the rotor into three regions.  2, record 2, English, - fast%20free%20wake%20method

Record number: 2, Textual support number: 1 CONT

Success of vortex theories in the performance analysis of horizontal axis wind turbines depends greatly upon accurate specification of the geometry of the vortex wake... An earlier wake model of helicopter rotors is extended for wind turbine applications, the fast free wake method(FFW). The FFW was accomplished by partitioning the flow field downstream of the rotor into three regions :(1) the near wake, modeled as a series of straight vortex lines;(2) the intermediate wake, modeled as a number of vortex rings; and(3) the far wake, taken to be a semi-infinite cylindrical wake.  3, record 2, English, - fast%20free%20wake%20method

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Modèle utilisé pour déterminer le sillage tourbillonnaire des éoliennes à axe horizontal par la séparation en trois dimensions du champ d'écoulement en aval du rotor.  2, record 2, French, - mod%C3%A8le%20de%20sillage%20en%20trois%20domaines

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A wind turbine whose rotor blades are installed on the tower side not facing prevailing winds.  3, record 3, English, - downstream%20wind%20turbine

Record number: 3, Textual support number: 1 OBS

The terms "downstream machine" and "downwind machine" can also be found in contexts as near-synonyms or descriptive words for expressing this concept.  3, record 3, English, - downstream%20wind%20turbine

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Éolienne dont les pales sont fixées sur le côté du mât ne faisant pas face au vent.  4, record 3, French, - %C3%A9olienne%20aval

Record number: 3, Textual support number: 1 CONT

Deux types de configuration [d'éoliennes] peuvent être rencontrés : les éoliennes «amont», sur lesquelles les pales sont situées du côté de la tour exposé au vent, et les éoliennes «aval» [...] Chaque configuration possède avantages et inconvénients : la formule «amont» requiert des pales rigides pour éviter tout risque de collision avec la tour alors que la configuration «aval» autorise l'utilisation de rotors plus flexibles. Par ailleurs, dans le cas d'une machine «amont», l'écoulement de l'air sur les pales est peu perturbé par la présence de la tour. L'effet de masque est plus important dans le cas d'une machine «aval». Enfin, une machine «aval» est théoriquement auto-orientable dans le lit du vent, alors qu'une éolienne «amont» doit généralement être orientée à l'aide d'un dispositif spécifique.  5, record 3, French, - %C3%A9olienne%20aval

Record number: 3, Textual support number: 1 OBS

On retrouve aussi le terme «machine aval» employé dans les contextes comme forme descriptive pour exprimer cette notion.  4, record 3, French, - %C3%A9olienne%20aval

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

In vortex theories, one of the three regions partitioning the flow field downstream of the rotor, modeled as a series of straight vortex lines.  2, record 4, English, - near%20wake

Record number: 4, Textual support number: 1 CONT

Success of vortex theories in the performance analysis of horizontal axis wind turbines depends greatly upon accurate specification of the geometry of the vortex wake... An earlier wake model of helicopter rotors is extended for wind turbine applications, the fast free wake method(FFW). The FFW was accomplished by partitioning the flow field downstream of the rotor into three regions :(1) the near wake, modeled as a series of straight vortex lines;(2) the intermediate wake, modeled as a number of vortex rings; and(3) the far wake, taken to be a semi-infinite cylindrical wake.  1, record 4, English, - near%20wake

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Dans la théorie des tourbillons, une des trois dimensions issues de la séparation du champ d'écoulement en aval du rotor, modélisée sous forme d'une série de lignes tourbillonnaires droites.  2, record 4, French, - sillage%20proche

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

In vortex theories, one of the three regions partitioning the flow field downstream of the rotor, modeled as a number of vortex rings.  2, record 5, English, - intermediate%20wake

Record number: 5, Textual support number: 1 CONT

Success of vortex theories in the performance analysis of horizontal axis wind turbines depends greatly upon accurate specification of the geometry of the vortex wake... An earlier wake model of helicopter rotors is extended for wind turbine applications, the fast free wake method(FFW). The FFW was accomplished by partitioning the flow field downstream of the rotor into three regions :(1) the near wake, modeled as a series of straight vortex lines;(2) the intermediate wake, modeled as a number of vortex rings; and(3) the far wake, taken to be a semi-infinite cylindrical wake.  1, record 5, English, - intermediate%20wake

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Dans la théorie des tourbillons, une des trois dimensions séparant le champ d'écoulement en aval du rotor, modélisée sous forme d'un certain nombre d'anneaux tourbillonnaires.  2, record 5, French, - sillage%20interm%C3%A9diaire

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

In vortex theories, one of the three regions partitioning the flow field downstream of the rotor, modeled as a semi-infinite cylindrical wake.  2, record 6, English, - far%20wake

Record number: 6, Textual support number: 1 CONT

Success of vortex theories in the performance analysis of horizontal axis wind turbines depends greatly upon accurate specification of the geometry of the vortex wake... An earlier wake model of helicopter rotors is extended for wind turbine applications, the fast free wake method(FFW). The FFW was accomplished by partitioning the flow field downstream of the rotor into three regions :(1) the near wake, modeled as a series of straight vortex lines;(2) the intermediate wake, modeled as a number of vortex rings; and(3) the far wake, taken to be a semi-infinite cylindrical wake.  1, record 6, English, - far%20wake

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Dans la théorie des tourbillons, une des trois dimensions issues de la séparation du champ d'écoulement en aval du rotor, modélisée sous forme d'un sillage cylindrique à demi infini.  2, record 6, French, - sillage%20%C3%A9loign%C3%A9

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

An imaginary tube which extends upstream and downstream of a wind turbine and holds all the air that flows through the rotor.  2, record 7, English, - stream%20tube

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Tube imaginaire qui s'étend en amont et en aval d'une éolienne et qui retient tout l'air traversant le rotor.  2, record 7, French, - tube%20de%20courant

Record number: 7, Textual support number: 1 CONT

Le tube de courant. Une éolienne freine obligatoirement le vent lorsqu'elle capte son énergie cinétique et la convertit en énergie rotative. Pour cette raison, la vitesse du vent à l'avant du rotor (à droite) est toujours supérieure à celle à l'arrière (à gauche). Comme la masse d'air traversant la surface balayée par le rotor (par seconde) est égale à celle sortant à gauche, la veine d'air s'élargit forcément à l'arrière du rotor [que l'on peut représenter tout] autour du rotor [par] un tube imaginaire, appelé aussi un tube de courant.  3, record 7, French, - tube%20de%20courant

Record 7,  Textual support,  Spanish