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Hydrodynamic separation is typically achieved by introducing the flow tangentially into a cylindrical vessel, thus forming a vortex or swirling action. This rotary flow action tends to concentrate settleable particles that gravitate for removal or deposition within a sump.  4, fiche 1, Anglais, - hydrodynamic%20vortex%20separation

Fiche 1,  Justifications,  Français

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Séparation par vortex : utilise les forces hydrodynamiques et gravitationnelles pour récupérer les MES [matières en suspension].  1, fiche 1, Français, - s%C3%A9paration%20par%20vortex

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

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The blades of a Kappel propeller have an extended tip, which is smoothly curved to the suction side of the blade in order to reduce energy loss from tip vortex flow.  1, fiche 2, Anglais, - Kappel%20propeller

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Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

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A vortex of liquid in a flow with free surface(for instance in a suction chamber) in which air is entrained into the core of the vortex.  1, fiche 3, Anglais, - aerated%20vortex

Fiche 3,  Justifications,  Français

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vortex aéré : terme extrait du «Glossaire de l’énergie nucléaire» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques.  2, fiche 3, Français, - vortex%20a%C3%A9r%C3%A9

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Fiche 4,  Justifications,  Anglais

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The flow of a fluid in which the curl of the fluid velocity is not zero, so that each minute particle of fluid rotates about its own axis.  2, fiche 4, Anglais, - vortex%20flow

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vortex flow; vortex fluid flow : terms officially approved by the Lexicon Project Committee(New Brunswick).  3, fiche 4, Anglais, - vortex%20flow

Fiche 4,  Justifications,  Français

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Écoulements rotationnels. [...] Lorsque le vecteur tourbillon est différent de zéro, l'écoulement est dit rotationnel. Il existe alors un champ de vecteurs tourbillons associé au champ de vitesse.  4, fiche 4, Français, - %C3%A9coulement%20tourbillonnaire

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écoulement tourbillonnaire : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).  5, fiche 4, Français, - %C3%A9coulement%20tourbillonnaire

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Fiche 5,  Justifications,  Anglais

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An upturned wingtip or added auxiliary aerofoil(s) above and/or below tip to increase efficiency of wing in cruise, usually by reducing tip vortex and thus recovering energy lost therein and improving circulation and lift of outer portion of wing.  3, fiche 5, Anglais, - winglet

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The tipsails are an extension of NASA [National Aeronautics and Space Administration] technology which led to the application of small winglets on many airplanes... Tipsails operate in the rotational flow field of the wing tip vortex, giving an effect similar to the sail of a boat as it moves into the wind. The force vector produced by the pressure differential between the two surfaces is directed forward, which results in a cruise drag reduction. Rudders, located at the trailing edge of the tipsails, provide directional control without requiring a special surface dedicated solely to that purpose.  4, fiche 5, Anglais, - winglet

Fiche 5,  Justifications,  Français

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Dérive verticale d'un aéronef, située en bout d'aile.  2, fiche 5, Français, - ailette%20de%20bout%20d%27aile

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Les ailettes marginales ne se bornent pas à diminuer la traînée induite et, dans une certaine mesure, à augmenter le C_z maximal. Elles ont en outre une influence importante en ce qui concerne la stabilité latérale.  3, fiche 5, Français, - ailette%20de%20bout%20d%27aile

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ailette de bout d'aile; penne : termes uniformisés par le Comité d'uniformisation de la terminologie aéronautique (CUTA) - Opérations aériennes.  5, fiche 5, Français, - ailette%20de%20bout%20d%27aile

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Fiche 6,  Justifications,  Anglais

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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, fiche 6, Anglais, - fast%20free%20wake%20method

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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, fiche 6, Anglais, - fast%20free%20wake%20method

Fiche 6,  Justifications,  Français

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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, fiche 6, Français, - mod%C3%A8le%20de%20sillage%20en%20trois%20domaines

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Fiche 7,  Justifications,  Anglais

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Measuring windspeed.... Marker(tracer) drift. Here the "sensor" is some sort of tracer, and its action is simply to move with the flow. Windspeed derived from a sequence of satellite observations of cloud positions are an example. Several in-situ anemometers used in meteorology fall in this category : the pulsed hot wire, the vortex shedding anemometer, ionic anemometer, laser Doppler anemometer, and the temperature-correlation anemometer.  1, fiche 7, Anglais, - ionic%20anemometer

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Glow-discharge ionic anemometer.  2, fiche 7, Anglais, - ionic%20anemometer

Fiche 7,  Justifications,  Français

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Dans l'anémomètre ionique, un pinceau d'ions se déplaçant entre une source et une électrode réceptrice est dévié par le vent. Un découpage de l'électrode réceptrice en plusieurs parties permet la mesure de la déviation du pinceau et on en déduit la valeur de la composante du vent perpendiculaire à la direction du pinceau.  2, fiche 7, Français, - an%C3%A9mom%C3%A8tre%20ionique

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Anémomètre ionique à haute résolution.  3, fiche 7, Français, - an%C3%A9mom%C3%A8tre%20ionique

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Fiche 8,  Justifications,  Anglais

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In vortex theories, one of the three regions partitioning the flow field downstream of the rotor, modeled as a semi-infinite cylindrical wake.  2, fiche 8, Anglais, - far%20wake

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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, fiche 8, Anglais, - far%20wake

Fiche 8,  Justifications,  Français

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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, fiche 8, Français, - sillage%20%C3%A9loign%C3%A9

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Fiche 9,  Justifications,  Anglais

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In vortex theories, one of the three regions partitioning the flow field downstream of the rotor, modeled as a number of vortex rings.  2, fiche 9, Anglais, - intermediate%20wake

Record number: 9, 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, fiche 9, Anglais, - intermediate%20wake

Fiche 9,  Justifications,  Français

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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, fiche 9, Français, - sillage%20interm%C3%A9diaire

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Fiche 10,  Justifications,  Anglais

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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, fiche 10, Anglais, - near%20wake

Record number: 10, 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, fiche 10, Anglais, - near%20wake

Fiche 10,  Justifications,  Français

Record number: 10, 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, fiche 10, Français, - sillage%20proche

Fiche 10,  Justifications,  Espagnol

Fiche 11,  Justifications,  Anglais

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Numerical modelling focused on the continued development of a prescribed wake vortex model for HAWT [horizontal axis wind turbine] performance prediction. This model represents the turbine blades as lifting lines from which emanate filaments of trailed vorticity. In yawed flow, additional filaments of shed vorticity are produced and the unsteady loading on the blades is represented by a semi-empirical unsteady aerofoil model.  2, fiche 11, Anglais, - prescribed%20wake%20model

Fiche 11,  Justifications,  Français

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Création de tourbillon [...] Dans son ensemble, le sillage comporte des phénomènes de convection, d'expansion et de déviation ainsi que des interactions de pales avec les tourbillons émis auparavant. Il est donc très complexe de le modéliser complètement. Le plus simple est de considérer un sillage dit «prescrit» où la géométrie de l'ensemble est figée sur les premiers tours [...]  2, fiche 11, Français, - mod%C3%A8le%20de%20sillage%20prescrit

Fiche 11,  Justifications,  Espagnol

Fiche 12,  Justifications,  Anglais

Record number: 12, Textual support number: 1 CONT

Numerical modelling focused on the continued development of a prescribed wake vortex model for HAWT [horizontal axis wind turbine] performance prediction. This model represents the turbine blades as lifting lines from which emanate filaments of trailed vorticity. In yawed flow, additional filaments of shed vorticity are produced and the unsteady loading on the blades is represented by a semi-empirical unsteady aerofoil model.  1, fiche 12, Anglais, - prescribed%20wake

Fiche 12,  Justifications,  Français

Record number: 12, Textual support number: 1 CONT

Création de tourbillon [...] Dans son ensemble, le sillage comporte des phénomènes de convection, d'expansion et de déviation ainsi que des interactions de pales avec les tourbillons émis auparavant. Il est donc très complexe de le modéliser complètement. Le plus simple est de considérer un sillage dit «prescrit» où la géométrie de l'ensemble est figée sur les premiers tours [...]  1, fiche 12, Français, - sillage%20prescrit

Fiche 12,  Justifications,  Espagnol

Fiche 13,  Justifications,  Anglais

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In this instrument, used to measure gas flows, a swirl is imparted to the flowing fluid by a fixed set of radial vanes. As this swirl goes into an expanding tube, it forms a precessing vortex that is detected by a heated thermistor sensor. The frequency of the precession is claimed to be proportional to the volumetric flow rate within an accuracy of 0. 75%.  1, fiche 13, Anglais, - vortex%2Dprecession%20flowmeter

Fiche 13,  Justifications,  Français

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[Les débitmètres à vortex ou compteurs à tourbillons] utilisent l'effet vortex qui se produit naturellement lorsqu'un fluide en écoulement turbulent heurte un obstacle non profilé.  2, fiche 13, Français, - d%C3%A9bitm%C3%A8tre%20%C3%A0%20vortex%20de%20pr%C3%A9cession

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VOIR précession  1, fiche 13, Français, - d%C3%A9bitm%C3%A8tre%20%C3%A0%20vortex%20de%20pr%C3%A9cession

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Fiche 14,  Justifications,  Anglais

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Sound produced by the swirling flow of a vortex.  1, fiche 14, Anglais, - vortex%20noise

Fiche 14,  Justifications,  Français

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Le sillage s'accompagne d'une traînée (...) et d'un bruit de sillage, son de fréquence f liée au nombre de Strouhal.  1, fiche 14, Français, - bruit%20de%20sillage

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Fiche 15,  Justifications,  Anglais

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A typical cyclone is illustrated in Figure 6 [p. 15]. Dust-laden gas tangentially enters the annular space between the cyclone body and the outlet tube, and begins to traverse a helical path(shown by the solid flow line) called the "main vortex". Near the bottom of the cone, the axial direction of the helix reverses, as shown by the dotted line, and forms the "vortex core". The tangential velocity is greatest at a radial distance from the centerline of 0. 4 to 0. 8 the radius of the gas outlet tube. The diameter of the vortex core is usually 0. 2 to 0. 4 times the diameter of the gas outlet. The tangential direction of flow is the same in both the main vortex and the vortex core, so that centrifugal separating forces are exerted on the particles in both sections of flow.  1, fiche 15, Anglais, - main%20vortex

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Fiche 16,  Justifications,  Anglais

Record number: 16, Textual support number: 1 CONT

A typical cyclone is illustrated in Figure 6 [p. 15]. Dust-laden gas tangentially enters the annular space between the cyclone body and the outlet tube, and begins to traverse a helical path(shown by the solid flow) called the "main vortex". Near the bottom of the cone, the axial direction of the helix reverses, as shown by the dotted line, and forms the "vortex core". The tangential velocity is greatest at a radial distance from the centerline of 0. 4 to 0. 8 the radius of the gas outlet tube. The diameter of the vortex core is usually 0. 2 to 0. 4 times the diameter of the gas outlet. The tangential direction of flow is the same in both the main vortex and the votex core, so that centrifugal separating forces are exerted on the particles in both sections of flow.  1, fiche 16, Anglais, - vortex%20core

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Fiche 17,  Justifications,  Anglais

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Amplifier, the operating principle of which is based on the pressure drop across a vortex, modulating the main flow.  1, fiche 17, Anglais, - vortex%20amplifier

Fiche 17,  Justifications,  Français

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Amplificateur dont le principe de fonctionnement est basé sur la différence de pression dans un vortex permettant la modulation du débit principal.  1, fiche 17, Français, - amplificateur%20%C3%A0%20vortex

Fiche 17,  Justifications,  Espagnol