Publications by Hugo De Oliveira

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Basil Duval, Holger Reimerdes, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Sophie Danielle Angelica Gorno, Claudia Colandrea, Marco Wischmeier, Cedric Kar-Wai Tsui, Mirko Wensing, Hugo De Oliveira

Recent TCV experiments confirm the predicted formation of an electric potential well, below the magnetic X-point, in configurations with unfavorable

B_t

field direction (ion

\nabla B

drift away from the divertor), that substantially reshapes the typica ...

2020

Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma

Benoît Labit, Federico Nespoli, Roberto Maurizio, Hugo De Oliveira, Eric Serre

The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)). The numerical simulations, in presence and in abs ...

2019

Conduction-based model of the Scrape-Off Layer power sharing between inner and outer divertor in diverted low-density tokamak plasmas

Basil Duval, Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Umar Sheikh, Marco Wischmeier, Nicola Vianello, Cedric Kar-Wai Tsui, Kevin Henricus Annemarie Verhaegh, Wouter Vijvers, Roberto Maurizio, Mirko Wensing, Hugo De Oliveira

A simple analytic model for the repartition of the Scrape-Off Layer (SOL) exhaust power between the inner and outer divertors in a diverted low-density tokamak plasma is introduced. Electron heat conduction is assumed to dominate the heat transport, from t ...

2019

, , , , , , , , ,

A detailed cross-device investigation on the role of filamentary dynamics in high density regimes has been performed within the EUROfusion framework comparing ASDEX Upgrade (AUG) and TCV tokamaks. Both devices have run density ramp experiments at different ...

2019

Drift effects in SOLPS-ITER simulations for the TCV divertor upgrade

Basil Duval, Holger Reimerdes, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Marco Wischmeier, Davide Galassi, Kevin Henricus Annemarie Verhaegh, Roberto Maurizio, Mirko Wensing, Hugo De Oliveira, Lorenzo Martinelli

This contribution reports on the progress towards including drift effects in SOLPS-ITER simulations to assess power distribution and detachment onset in the light of the 2019 TCV divertor upgrade [1]. The installation of in-vessel gas baffles (Figure 1a) i ...

2019

An improved understanding of the roles of atomic processes and power balance in divertor target ion current loss during detachment

Basil Duval, Holger Reimerdes, Benoît Labit, Christian Gabriel Theiler, Umar Sheikh, Nicola Vianello, Cedric Kar-Wai Tsui, Kevin Henricus Annemarie Verhaegh, Roberto Maurizio, Mirko Wensing, Hugo De Oliveira, Claudio Marini

The process of divertor detachment, whereby heat and particle fluxes to divertor surfaces are strongly diminished, is required to reduce heat loading and erosion in a magnetic fusion reactor to acceptable levels. In this paper the physics leading to the de ...

2019

Langmuir probe electronics upgrade on the tokamak a configuration variable

Benoît Labit, Christian Gabriel Theiler, René Chavan, Pierre Lavanchy, Richard Pitts, Philippe Marmillod, Blaise Marlétaz, Hugo De Oliveira

A detailed description of the Langmuir probe electronics upgrade for TCV (Tokamak a Configuration Variable) is presented. The number of amplifiers and corresponding electronics has been increased from 48 to 120 in order to simultaneously connect all of the ...

2019

All natural cork composites with suberin-based polyester and lignocellulosic residue

Véronique Michaud, Hugo De Oliveira

Suberin is an aromatic-aliphatic cross-linked polyester structure which constitutes cell wall structures of cork. It is particularly interesting for its use of monomeric compounds towards renewable bio-based polymers. In this study, the extraction of suber ...

Elsevier2017

Hugo De Oliveira

Graph Chatbot

Chat with Graph Search

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma

Conduction-based model of the Scrape-Off Layer power sharing between inner and outer divertor in diverted low-density tokamak plasmas

Drift effects in SOLPS-ITER simulations for the TCV divertor upgrade

An improved understanding of the roles of atomic processes and power balance in divertor target ion current loss during detachment

Langmuir probe electronics upgrade on the tokamak a configuration variable

All natural cork composites with suberin-based polyester and lignocellulosic residue

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

All natural cork composites with suberin-based polyester and lignocellulosic residue

An improved understanding of the roles of atomic processes and power balance in divertor target ion current loss during detachment

Conduction-based model of the Scrape-Off Layer power sharing between inner and outer divertor in diverted low-density tokamak plasmas

Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma

Drift effects in SOLPS-ITER simulations for the TCV divertor upgrade

Langmuir probe electronics upgrade on the tokamak a configuration variable