Concept

Coronal mass ejection

Related publications (222)

A kinetic neutral atom model for tokamak SOL turbulence simulations

Paolo Ricci, Federico David Halpern, Fabio Riva, Christoph Wersal

The first-principle understanding of the processes in the Scrape-Off-Layer (SOL) of a tokamak is crucial for the developement of a thermonuclear reactor. Since the plasma temperature in the SOL is rather low, the plasma is typically not fully ionized, and ...

2014

Optimization of experimental snowflake configurations on TCV

Stefano Coda, Jean-Marc Moret, Holger Reimerdes

The design of a snowflake (SF) equilibrium requires a strong effort on the poloidal field (PF) currents in terms of MAturns and mechanical loads. This has limited the maximum plasma current in SF configurations on Tokamak a Configuration Variable (TCV) to ...

International Atomic Energy Agency2014

Intermittent dewetting and dryout of annular flows

John Richard Thome, Navid Borhani

Flow visualisation of saturated flow boiling of refrigerant R245fa in a silicon parallel multi-microchannel evaporator, at low mass flux and moderate uniform heat flux, has been carried out with a high-speed digital camera. Using the time-strip technique t ...

Pergamon-Elsevier Science Ltd2014

Magnetohydrodynamic helical structures in nominally axisymmetric low-shear tokamak plasmas

Olivier Sauter, Jonathan Graves, Wilfred Anthony Cooper, Holger Reimerdes, Antoine Pochelon, Federico David Halpern, Daniele Brunetti

The primary goal of hybrid scenarios in tokamaks is to enable high performance operation with large plasma currents whilst avoiding MHD instabilities. However, if a local minimum in the safety factor is allowed to approach unity, the energy required to ove ...

Iop Publishing Ltd2013

Wind Tunnel Experiments and Modelling of Particle-Laden Boundary Layer Flows

Michael Lehning, Benjamin Andreas Walter

Particle-laden boundary flows occur in many geophysical and industrial environments yet are difficult to understand and quantitatively describe because the interactions of an often turbulent boundary layer flow with surface and particle dynamics are comple ...

2013

Temporal dynamics of antibiotics in wastewater treatment plant influent

David Andrew Barry, Luca Rossi, Sylvain Coutu, Htet Kyi Wynn, Vera Wyrsch

A yearlong field experimental campaign was conducted to reveal time scales over which antibiotic fluxes vary in the influent of a wastewater treatment plant (WTP). In particular, sampling was carried out to ascertain the amplitudes of monthly, daily and ho ...

Elsevier2013

Microphysics of Cosmic Plasmas: Hierarchies of Plasma Instabilities from MHD to Kinetic

Ivo Furno

In this article, we discuss the idea of a hierarchy of instabilities that can rapidly couple the disparate scales of a turbulent plasma system. First, at the largest scale of the system, L, current carrying flux ropes can undergo a kink instability. Second ...

Springer2013

Wind tunnel measurements of sediment mass fluxes in different dense live plant canopies

Michael Lehning, Benjamin Andreas Walter

Erosion, transport and deposition of soil or snow are processes that occur when the atmospheric turbulent boundary layer interacts with the ground. Vegetation on the ground is able to significantly modify these processes, usually resulting in reduced parti ...

2013

ELM control strategies and tools: status and potential for ITER

Yves Martin, Minh Quang Tran

Operating ITER in the reference inductive scenario at the design values of Ip = 15 MA and QDT = 10 requires the achievement of good H-mode confinement that relies on the presence of an edge transport barrier whose pedestal pressure height is key to plasma ...

2013

Analysis of global hydromagnetic instabilities driven by strongly sheared toroidal flows in tokamak plasmas

Jonathan Graves

Recent numerical calculations have shown that while strong toroidal rotation can increase the external kink limit of tokamak plasmas, the associated rotation shear can drive a Kelvin-Helmholtz like global instability in the plasma, if the rotation frequenc ...

Iop Publishing Ltd2013

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