houle – -Translation – Keybot Dictionary

« Bien que fondamentales, il existe une marge entre les données recueillies dans une piscine intérieure en eau calme et dans l'océan, poursuit M. Power. Il faut mesurer la température corporelle dans le temps, quand les personnes sont ballotées par les vagues et le vent. Nous avons mesuré la température de l'épiderme, les flux thermiques et la fréquence cardiaque dans diverses conditions (vent, houle et température de l'eau) pour savoir comment chacun des facteurs affectait les participants. »

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"Although this testing provides baseline data, there's a significant difference between the data you'll collect from people monitored in a calm indoor pool and people exposed to real ocean conditions," says Power. "We need to measure body temperature loss over time when people are buffeted by high wind and waves. So far, we've measured skin temperature, core body temperature, heat flow and heart rates in different wind, wave and water temperature conditions to determine how each factor affected the participants."

Bassin d'essais des car...

Mécanisme à mouvement dans le plan (MMP); installation d’essais de dynamique marine (IEDM); dynamomètre pour yachts; appareil produisant des vibrations par tourbillon; capteurs capacitifs et sondes ultrasoniques pour la houle; système Qualisys pour le repérage visuel de la maquette; système de propulsion et de contrôle pour les maquettes franches; caméscope sous l’eau et au-dessus de l’eau (caméra à balayage linéaire).

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Planar Motion Mechanism (PMM), Marine Dynamics Test Facility (MDTF), Yacht Dynamometer, Vortex Induced Vibration (VIV) apparatus, capacitance and sonic wave probes, Qualisys optical tracking for model position, propulsion control systems for free-running models, under and above water video (Line-scanning camera).

Bassin d'étude des ouvr...

Show text Show cached source Open source URL	Production de courtes ou longues vagues régulières ou irrégulières allant jusqu’à 1 m de hauteur, selon leur fréquence et leur spectre. Cent soixante-huit générateurs de houle individuels à commande hydraulique (1 800 kW), pouvant être ajustés verticalement.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Regular and irregular long or short crested waves up to 1.0 m high, depending on wave frequency and spectrum. 168 individual, vertically adjustable, hydraulically actuated (1800kW) wavemaker segments. Three articulation modes, flapper ±15 degrees, piston ±400mm, and combined. Wave absorbers are vertical perforated sheets on none wavemaking walls.

Show text Show cached source Open source URL	Le CNRC poursuit un projet de longue haleine visant à analyser et à améliorer la production et la propagation des vagues de deuxième ordre en eau peu profonde dans son Bassin d'étude des ouvrages de haute mer. Parallèlement, il continue la modélisation numérique et expérimentale de la houle réfléchie par les courants dans le bassin.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	NRC has an ongoing project to study and improve the generation and propagation of second order, shallow water waves in our Offshore Engineering Basin. We are also pursuing the numerical and experimental modelling of wave reflection by current in the basin. As well, our researchers are developing and validating a mathematical model of turbulence stimulation, utilizing NRC’s Cavitation Tunnel.

ARCHIVÉ - Une technolog...

Show text Show cached source Open source URL	En utilisant des équations qui décrivent la physique des mouvements, le modèle simule de façon mathématique les différents facteurs environnementaux qui influencent la dérive d'un iceberg. Ceux-ci comprennent la taille de l'iceberg, la hauteur de la houle, et les vents et courants dominants.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Using the equations that describe the physics of motion, the forecast model mathematically simulates the various environmental forces that determine an iceberg's drift. These include the iceberg's size, the swell height and the prevailing wind and currents. The drift model, which is run on a desk-top PC, was validated by comparing it against actual observations of iceberg drift around Hibernia.

ARCHIVÉ - Essai d'embar...

Show text Show cached source Open source URL	« Nous avons commencé à nous intéresser au fonctionnement des embarcations de sauvetage en eau libre il y a dix ans, avant de vouloir voir comment elles se comportent plus au nord, dans la houle et la glace », explique António Simões Ré, chercheur à l'Institut des technologies océaniques du CNRC de St.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	"Ten years ago, we started looking at how lifeboats perform in open water and then moved on to see how they perform further north in conditions of waves and ice," says António Simões Ré, a researcher at the NRC Institute for Ocean Technology in St. John's. "We thought this was an important issue to investigate because existing regulations mostly apply to big ships rather than small craft."

Bassin d'essais des car...

Show text Show cached source Open source URL	Résistance et propulsion; étude du sillage; visualisation de l’écoulement; performance des hélices en mer libre; tenue en mer; manœuvrabilité (MMP); contraintes exercées par la houle, le vent et le courant sur les structures flottantes et amarrées; poussée et traînée; dynamique des véhicules sous-marins (IEDM).
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Resistance and propulsion, wake survey, flow visualization, propeller open water, seakeeping, manoeuvring (PMM), loads due to waves, wind and current on floating and moored structures, lift and drag, dynamics of underwater vehicles (MDTF).

Les chercheurs mesureront et enregistreront les déplacements du modèle, sa position, sa vitesse, ses mouvements relatifs, le tirant d'eau et l'amplitude de la houle ainsi que les révolutions des hélices dans des conditions de houle normales et anormales.

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This surface operations evaluation involves the design, fabrication, outfitting and testing of a 1:15 scale free-running model of the Canadian Victoria-class submarine. Researchers are measuring and recording model motions, position, speed, relative motions, water and wave elevation, and propeller revolutions, in both regular and irregular wave conditions. The long-term objective is to improve the safety of submarine operations, while in the short term helping to define the performance envelope while surfaced. NRC conducts a wide range of evaluations for the Department of National Defence, from the hydrodynamics of navy divers to frigate fuel consumption.

Une technologie canadie...

« Nous avons testé le modèle dans le bassin d’essais de carènes puis dans celui en conditions de houle, et nous avons conçu un propulseur sur mesure pour conférer à l’appareil la plus grande efficacité possible quand il se déplace ».

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While the Marport/MRI team developed the actual AUV, NRC’s “one-stop shop” provided the company most of the services it needed. “We started off at the concept design level,” says Dr. Williams. “We did model testing in our towing tank and wave basin. And we designed a custom propeller to give the AUV the highest possible propulsion efficiency.” Further testing was conducted at Memorial University’s flume tank facility and their Holyrood Marine Base.

ARCHIVÉ - Des bateaux d...

Selon Ayhan Akinturk, directeur du projet, les chercheurs du CNRC ont raffiné leur outil en recourant à plusieurs types de données. Ainsi, ils ont passé au crible les résultats des dizaines d'essais sur maquette effectués dans les bassins à houle de l'ITO-CNRC.

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NRC researchers built the tool using several types of data, says project leader Dr. Ayhan Akinturk. For example, they examined results from dozens of past model tests conducted in NRC-IOT wave tanks, but their main focus was on real people in real boats. Tool developers took a statistical look at fleet safety records for different boat designs - to find out whether particular types are accident-prone - and analyzed the ability of different designs to right themselves in a roll. The team also looked at weather conditions (wind, waves and ice) during accidents as well as how fleet vessels were operated, including what gear was used and how fishing license conditions (e.g. were catches stowed on deck or below?) may have affected handling.

Grand canal à houle - ...

Le grand canal à houle (GCH) du CNRC est souvent utilisé pour mettre à l'essai des sections bidimensionnelles d'ouvrages côtiers et étudier les processus maritimes à grande échelle et pour un nombre de Reynold élevé.

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NRC's Large Scale Wave Flume (LWF) is often used to test two-dimensional sections of coastal structures and study coastal processes at large scale and high Reynold's number. Large scale testing ensures that wave breaking processes and turbulence are accurately reproduced, which leads to improved modelling of processes such as wave loading of structures, wave runup, and the internal flows in breakwater armour and filter layers. Studies in the facility are typically conducted at scale factors on the order of 1:5 or 1:10 ¬ leading to highly accurate and reliable results.

Bassin de grande superf...

Le bassin peut être équipé d'un maximum de trois machines à houle mobiles contrôlées par ordinateur capable de produire une grande variété de vagues irrégulières à crête longue pouvant atteindre des hauteurs de 0,2 m.

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The basin can be equipped with up to three computer-controlled portable wave machines capable of producing a wide variety of irregular long-crested waves with heights up to 0.2 m. Large pumps and weirs under computer control can be used to produce tidal flows and simulate discharges from inlets, rivers and culverts. Discharges up to 1.6 m3/s (56 cfs) can be generated by tapping into the adjacent High Discharge Flume. The LAB can be quickly drained and filled, and can be easily accessed by construction equipment for building model bathymetries and structures. The facility is typically used to conduct large three-dimensional model studies of:

Parmi ses objectifs à long terme, mentionnons le développement de compétences dans l'évaluation des dispositifs qui puisent l'énergie de l'océan, une modélisation pointue de la houle dans son Bassin d'étude des ouvrages de haute mer et l'élaboration d'un modèle mathématique de l'accentuation des turbulences.

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NRC pursues a range of research projects in performance evaluation through partnerships with Canadian companies and public sector agencies. Our long-range objectives include developing competencies in the assessment of ocean energy devices, providing state-of-the-art wave modelling in our Offshore Engineering Basin, and developing a mathematical model of turbulence stimulations. We are also assisting the Canadian Navy in defining operational envelopes for its vessels, and helping to develop an advanced marine control system that reduces fuel consumption. Other current projects in performance evaluation include:

Bassin à glace (BG) - C...

Le bassin à glace sert à de nombreux types d'études, notamment la modélisation de l'interaction entre la glace et les ouvrages, à l'aide de glace reproduite à l'échelle. Le bassin peut abriter une machine à houle qui produit un climat des vagues dans différents régimes de glace.

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The NRC Ottawa ice laboratory is a versatile ice modelling facility that has been used to study dozens of ice related problems. The staff has developed international recognition for their work in modelling ice and ice problems. The temperature inside the chamber can be varied down to -20°C. It houses a concrete tank which is 21m long by 7m wide by 1.1m deep equipped with both a towing and a service carriage. Ice up to 0.6m thick can be grown in this tank. The ice tank is used for many types of studies, including model tests of ice-structure interaction using model ice. The tank can accommodate a wave machine, producing a wave climate in different ice regimes. Recently, the tank has also been used to investigate the effects of ice scouring seabed material.

L’idée est de comprendre l’impact de la houle et d’autres forces sur la plateforme, et de formuler des suggestions pour l’améliorer et ainsi en accroître la stabilité, la sécurité et le fonctionnement dans les conditions les plus rigoureuses.

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On behalf of a big international energy company, we’re testing the design of a new offshore gas production platform that will be installed off the coast of Australia. We’re building a scaled model of the platform, fitted with instruments to measure the pressures and forces exerted by very large waves generated by hurricanes. The objective is to understand how the waves and other forces impact the platform, and suggest ways to improve the design so the platform will remain stable, safe and functional in the most severe conditions.

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Show text Show cached source Open source URL	Je travaille avec d’autres ingénieurs du Centre d’hydraulique canadien pour mieux comprendre l’impact de la houle, des marées et des courants sur les ports, les havres, les quais, les marinas et les plateformes de forage extracôtières.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	At the Canadian Hydraulics Centre, I work with engineers who study the impact of waves, tides and currents on ports, harbours, piers, marinas and off-shore oil platforms. Our job is to examine the design of proposed projects and recommend improvements that will make them safer, more durable and better for the coastal environment.

Show text Show cached source Open source URL	Nous recourons aussi à des logiciels complexes qui simulent et modélisent l’écoulement de l’eau dans les rivières, le déplacement des sédiments, ou la houle dans les ports et les zones riveraines. On compare les résultats de la modélisation sur ordinateur aux observations effectuées sur le terrain et aux tests sur les modèles physiques.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	We also use sophisticated software that can simulate and model the flow of water in rivers, the movement of sediment, or the wave conditions in ports, harbours and coastal waters. We can compare the results of computer modeling tools with real-world observations and tests conducted on physical models.

Installation d’essais e...

Show text Show cached source Open source URL	Grand canal à houle
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Large scale wave flume

Bassin d'étude des ouvr...

Show text Show cached source Open source URL	Génération de houle :
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Wave generation:

Bassin à glace (BG) - C...

Show text Show cached source Open source URL	Absorbeurs - Absorbeurs passifs de houle
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Beaches - Passive wave absorbers

Bassin de grande superf...

Show text Show cached source Open source URL	Absorbeurs - Dispositifs flexibles d'absorbeurs passifs de houle et de plages poreuses en gravier
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	Beaches - Flexible arrangement of passive wave absorbers and porous gravel beaches

Show text Show cached source Open source URL	Modélisation de la houle et des turbulences
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Show text Show cached source Open source URL	Houle et marée, un défi technique
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	The Engineering Challenges of Waves and Tides

ARCHIVÉ - Sauver des vi...

Show text Show cached source Open source URL	Dans une étude connexe, Jonathan Power, un collègue de M. Mak, jauge l'incidence du vent et de la houle sur la perte de chaleur chez les personnes portant une combinaison d'immersion commerciale certifiée.
Compare text pages Compare HTM pages Open source URL Open target URL Define nrc-cnrc.gc.ca as primary domain	In a related study, Mak's colleague, Jonathan Power, is measuring the effect of wind and waves on the heat loss of humans wearing certified and commercially available immersion suits.

ARCHIVÉ - Essai d'un di...