Publications associées à Jet propulsion

Swirl Jet and Crossflow Interaction at Low Velocity Ratios and Incompressible Flows

Swirl jets in crosflow are investigated experimentally and numerically. The main difference with non-swirl cases is an asymmetry of the dominant kidney vortex and a slight distortion of the jet trace downstream of the injection hole. Jet rotation, at relat ...

2011

Universal Scaling Law for Jets of Collapsing Bubbles

Mohamed Farhat, Nicolas Dorsaz, Danail Obreschkow, Philipp Kobel, Aurèle De Bosset, Marc Tinguely

Cavitation bubbles collapsing and rebounding in a pressure gradient del p form a "microjet" enveloped by a "vapor jet." This Letter presents unprecedented observations of the vapor jets formed in a uniform gravity-induced del p, modulated aboard parabolic ...

2011

Divertor heat load in ITER-like advanced tokamak scenarios on JET

Richard Pitts, Gilles Arnoux

Heat loads on the JET MarkIIHD divertor are measured by IR thermography in high triangularity plasmas with edge conditions of advanced tokamak scenarios (AT). AT scenarios operate at low density (n(e,av) < 5 x 10(19) m(-3) at JET) to maximise the non induc ...

Elsevier2009

Divertor heat load in ITER-like advanced tokamak scenarios on JET

Richard Pitts, Gilles Arnoux

Heat loads on the JET MarkIIHD divertor are measured by IR thermography in high triangularity plasmas with edge conditions of advanced tokamak scenarios (AT). AT scenarios operate at low density (n(e,av) < 5 x 10(19) m(-3) at JET) to maximise the non induc ...

Elsevier2009

SOLPS5 simulations of Type I ELMing H-mode at JET

Barbora Bruant Gulejová, Richard Pitts

This paper aims to contribute both to the ongoing process of scrape-off layer code-experiment and code-code benchmarking. Results are presented from SOLPS5 simulations of two high power JET H-modes with similar magnetic configuration, concentrating in the ...

Elsevier2009

SOLPS5 simulations of Type I ELMing H-mode at JET

Barbora Bruant Gulejová, Richard Pitts

This paper aims to contribute both to the ongoing process of scrape-off layer code-experiment and code-code benchmarking. Results are presented from SOLPS5 simulations of two high power JET H-modes with similar magnetic configuration, concentrating in the ...

None2008

Erosion and deposition in the JET MkII-SRP divertor

Richard Pitts

Carbon-13 labelled methane was injected into the outer divertor during a series of H-mode discharges on the last day of operations with the JET MkII-SRP divertor. Tiles from around the vessel were removed during the subsequent shutdown and surface deposits ...

2007

Cavitation bubble behavior inside a liquid jet

François Avellan, Mohamed Farhat, Peter Monkewitz, Etienne Robert, Jacques Lettry

The growth and collapse of laser-induced vapor cavities inside axisymmetric free-falling liquid water jets have been studied. Bubbles of different size are generated at various distances from the jet axis and the effects on the jet interface are recorded b ...

2007

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes?

Richard Pitts, Jan Horacek, Marco Wischmeier

Examination of radial electric field (E,.) profiles in the scrape-off layer (SOL) of ASDEX Upgrade (AUG) and JET revealed large discrepancies between 2D fluid edge modelling and experiment. Experimental profiles of plasma potential (V-p) in the outer (low ...

2007

Friction based locomotion module for mobile MEMS robots

Reymond Clavel, Amar Rida, Jean-Marc Breguet, Walter Driesen

The “Modulated Friction Inertial Drive (MFID) principle” is presented as a locomotion solution for mmsize micro robots dealing with both size constraints and limitations in terms of power consumption. Based on one of the configurations of this locomotion p ...

2007

Jet propulsion

Swirl Jet and Crossflow Interaction at Low Velocity Ratios and Incompressible Flows

Universal Scaling Law for Jets of Collapsing Bubbles

Divertor heat load in ITER-like advanced tokamak scenarios on JET

Divertor heat load in ITER-like advanced tokamak scenarios on JET

SOLPS5 simulations of Type I ELMing H-mode at JET

SOLPS5 simulations of Type I ELMing H-mode at JET

Erosion and deposition in the JET MkII-SRP divertor

Cavitation bubble behavior inside a liquid jet

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes?

Friction based locomotion module for mobile MEMS robots

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SOLPS5 simulations of Type I ELMing H-mode at JET

Divertor heat load in ITER-like advanced tokamak scenarios on JET

Universal Scaling Law for Jets of Collapsing Bubbles

SOLPS5 simulations of Type I ELMing H-mode at JET

Cavitation bubble behavior inside a liquid jet

Friction based locomotion module for mobile MEMS robots

Swirl Jet and Crossflow Interaction at Low Velocity Ratios and Incompressible Flows

Divertor heat load in ITER-like advanced tokamak scenarios on JET

Erosion and deposition in the JET MkII-SRP divertor

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes?