Publications scientifiques

Interaction d'une bulle sphérique avec un écoulement turbulent ou tourbillonnaire
... Les

force

s usuelles (en écoulement laminaire) permettent de décrire de manière correcte les principales évolutions, à l'exception des effets de portance pour une sphère solide.
...
... The usual forces (in laminar flow) describe in a correct way the main evolutions, to the exception of the

lift force

for a solid sphere
...
général - core.ac.uk - PDF: core.ac.uk
Quelques aspects des forces hydrodynamiques et des transferts de chaleur sur une bulle sphérique
... ABSTRACT : This work, carried out by means of numerical simulation, is devoted to the study of momentum and energy transfers between a spherical bubble and a given flow for Reynolds numbers ranging from 0.L to 500. The three-dimensional Navier- tokes equations and the temperature equation are solved in an orthogonal curvilinear grid using a finite volume approach. Several new results concerning interfacial transfer and inertial forces are discussed. For example, it is shown that history thermal effects are of importance in many unsteady flows though straining effects are unimportant. The study of boiling and condensation of a vapor bubble in a uniform flow, in which interfacial energy transfer governs the evolution of the bubble radius, shows that these two phenomena are in fact dramatically different regarding interfacial transfer as well as hydrodynamic aspects. The added mass force caused by the bubble volume variation is found to be descnbed in viscous flow by the inviscid flow solution and a significant history force is induced by initial conditions....
Europe / politique tarifaire - core.ac.uk - PDF: ethesis.inp-toulouse.fr
Traînée et portance dans les milieux granulaires
Cette thèse présente une étude expérimentale et numérique des forces s'exerçant sur un objet en mouvement dans un milieu granulaire....
général - core.ac.uk - PDF: core.ac.uk
Caractérisation des forces fluides s'exerçant sur un faisceau de cylindres oscillant latéralement en écoulement axial
...This thesis presents an experimental and a numerical study of the fluid forces exerted on a cylinder or a cylinder array oscillating laterally in an axial flow. The parameters of the system are the amplitude, the oscillation frequency, the confinement and the length to diameter ratio of the cylinder. The objective is to determine the fluid damping created by the axial flow, i.e. the dissipative force. The industrial application of this thesis is the determination of the fluid damping of the fuel assemblies in the core of a nuclear power plant during an earthquake. The study focuses on the configurations where the oscillation velocity is small compared to the axial flow velocity. In a first part, we study the case of a cylinder with no confinement oscillating in axial flow. Two methods are used: a dynamical and a quasi-static approach. In dynamics, the damping rate is measured during free oscillations of the cylinder. In the quasi-static approach, the damping coefficient is calculated from the normal force measured on a yawed cylinder. The range of the small ratios between the oscillation and the axial flow velocities corresponds to a range of low yaw angle where the cylinder is in near-axial flow in statics. The case of a yawed cylinder has been studied both experimentally with experiments in a wind tunnel and numerically with CFD calculations. The analyses of the fluid forces shows that for yaw angles smaller than 5°, a linear lift with the yaw angle creates the damping....
politique tarifaire - core.ac.uk - PDF: core.ac.uk

Exemples français - anglais

industrie mécanique / technologie et réglementation technique / transport terrestre / transports / sciences naturelles et appliquées - iate.europa.eu
industrie mécanique - techdico
santé - acta.es
[...]

Traductions en contexte français - anglais

Il a démontré la faisabilité du concept « radial

lift force

», la faisabilité des nacelles inclinables, et un niveau de bruit acceptable.

It successfully proved the radial force concept, the feasibility of tilting nacelles, and low noise levels.

général - CCMatrix (Wikipedia + CommonCrawl)
Utilisation nouvelle d'un câble pour le lift : Millennium Force.

First coaster to use an elevator cable lift system: Millennium Force.

général - CCMatrix (Wikipedia + CommonCrawl)
LIFT—La force aérodynamique qui tend à maintenir un avion en l'air.

LIFT—The aerodynamic force that tends to keep an aircraft in the air.

général - CCMatrix (Wikipedia + CommonCrawl)
Premières montagnes russes à utiliser un câble pour le lift : Millennium Force.

First coaster to use an elevator cable lift system: Millennium Force.

général - CCMatrix (Wikipedia + CommonCrawl)
LIFT—La force aérodynamique qui tend à maintenir un avion en l'air.

LIFT—the aerodynamic force that tends to keep an aircraft in the air.

général - CCMatrix (Wikipedia + CommonCrawl)
La différence de pression d'air crée une force agissant vers le haut, ou le «lift».

The difference in pressure results in a force acting upwards, which is called lift.

général - CCMatrix (Wikipedia + CommonCrawl)
La différence de pression d'air crée une force agissant vers le haut, ou le «lift».

The air pressure difference creates a force acting upwards, or the ‘lift’.

général - CCMatrix (Wikipedia + CommonCrawl)
En fonction de la fréquence de battement des clapets LIFT et de la force d’aspiration choisies, les têtes LIFT génèrent des stimulations différentes pour des objectifs esthétiques précis.

Depending on the frequency at which the Lift valves pulse and the chosen suction strength, the Lift heads generate different stimulations for specific beauty, or therapeutic, goals.

général - CCMatrix (Wikipedia + CommonCrawl)
En fonction de la fréquence de battements des clapets LIFT et de la force d'aspiration choisie, les têtes LIFT génèrent des stimulations différentes pour des objectifs esthétiques précis.

Depending on the frequency at which the Lift valves pulse and the chosen suction strength, the Lift heads generate different stimulations for specific beauty, or therapeutic, goals.

général - CCMatrix (Wikipedia + CommonCrawl)
Le renforcement de votre abdomen et de votre prise augmentera automatiquement votre force pour n’importe quel lift.

Strengthening your midsection and your grip will automatically increase your strength in any lift.

général - CCMatrix (Wikipedia + CommonCrawl)
La force de l’équipe de Lift met en évidence l’un des piliers de la philosophie d’investissement de CBGF.

The strength of Lift’s team highlights a cornerstone of CBGF’s investment philosophy.

général - CCMatrix (Wikipedia + CommonCrawl)
Ceci s’applique en particulier aux squats, car il s’agit du lift le plus fondamental pour développer la force de votre tronc.

This applies in particular to squatting, as this is going to be the most foundational lift in which to develop this trunk strength.

général - CCMatrix (Wikipedia + CommonCrawl)
Vous entendrez parler du “mini lifting du visage”, du “lifting MACS”, du “S-lift”, du “soft lift”, du “SMAS lift”, du “sub-SMAS lift “ et du “quick lift”.

There are different names for the face lift such as the “mini face lift”, the “MACS lift”, the “S-lift”, the “soft lift”, the “SMAS lift”, the “sub-SMAS lift “ and the “quick lift”.

général - CCMatrix (Wikipedia + CommonCrawl)
Vous entendrez parler du “mini lifting du visage”, du “lifting MACS”, du “S-lift”, du “soft lift”, du “SMAS lift”, du “sub-SMAS lift “ et du “quick lift”.

You will heartalk of the “Mini face lift”, the “MACS lift”, the “S-lift”, the “Soft lift”,the “SMAS lift”, the “sub-SMAS lift “ and the “Quick lift”.

général - CCMatrix (Wikipedia + CommonCrawl)
Il a démontré la faisabilité du concept « radial lift force », la faisabilité des nacelles inclinables, et un niveau de bruit acceptable.

It successfully proved the radial force concept, the feasibility of tilting nacelles, and low noise levels.

général - CCMatrix (Wikipedia + CommonCrawl)


1 milliard de traductions classées par domaine d'activité en 28 langues