Concept
Jet propulsion
Publications associées (100)
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 ...
2011Universal 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 ...
2011Divertor heat load in ITER-like advanced tokamak scenarios on JET
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 ...
Elsevier2009Divertor heat load in ITER-like advanced tokamak scenarios on JET
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 ...
Elsevier2009SOLPS5 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 ...
Elsevier2009SOLPS5 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 ...
None2008Erosion and deposition in the JET MkII-SRP divertor
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 ...
2007Cavitation 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 ...
2007Discrepancy 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 ...
2007Friction 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