28 citations · 70 across the 8 of their papers we have counts for
9 papers
A novel mechanism for spontaneous ExB shear layer formation in scrape-off-layer plasmas
Brendan Shanahan, Eduardo Rodriguez
We present a novel mechanism for spontaneous shear-flow generation in the scrape-off layer (SOL) of magnetically confined plasmas, arising at abrupt changes in the sheath connectio…
Numerical methods for stellarator simulations in BOUT++
David Bold, Brendan Shanahan
Modeling the Scape-off layer (SOL) of stellarator fusion devices is challenging due to the complicated magnetic topology, requiring numerical tools to solve transport equations for…
Gas puff imaging of plasma turbulence in the magnetic island scrape-off layer of W7-X
S. G. Baek, S. Ballinger, O. Grulke +5
The turbulence characteristics of the scrape-off-layer (SOL) plasma in the W7-X stellarator are investigated using a gas-puff-imaging (GPI) diagnostic, newly installed and operated…
Global fluid turbulence simulations in the SOL of a stellarator island divertor
Brendan Shanahan, David Bold, Ben Dudson
Isothermal fluid turbulence simulations have been performed in the edge and scrape-off-layer (SOL) of an analytic stellarator configuration with an island divertor, thereby providi…
The effects of non-uniform drive on plasma filaments
Brendan Shanahan, Ben Dudson, Peter Hill
Wendelstein 7-X core fueling is primarily achieved through pellet injection. The trajectory of plasmoids from an ablating pellet is an ongoing research question, which is complicat…
Fluid simulations of plasma filaments in stellarator geometries with BSTING
B Shanahan, B Dudson, P Hill
Here we present first results simulating plasma filaments in non-axisymmetric geometries, using a fluid turbulence extension of the \boutxx~framework. This is made possible by the…
Towards nonaxisymmetry; initial results using the Flux Coordinate Independent method in BOUT++
Brendan Shanahan, Peter Hill, Ben Dudson
Fluid simulation of stellarator edge transport is difficult due to the complexities of mesh generation; the stochastic edge and strong nonaxisymmetry inhibit the use of field align…
Dirichlet boundary conditions for arbitrary-shaped boundaries in stellarator-like magnetic fields for the Flux-Coordinate Independent method
Peter Hill, Brendan Shanahan, Ben Dudson
We present a technique for handling Dirichlet boundary conditions with the Flux Coordinate Independent (FCI) parallel derivative operator with arbitrary-shaped material geometry in…
Blob dynamics in TORPEX poloidal null configurations
Brendan Shanahan, Ben Dudson
Three dimensional blob dynamics are simulated in X-point magnetic configurations in the TORPEX device via a non-field-aligned coordinate system, using an isothermal model which evo…