### Skapa referens, olika format (klipp och klistra)

**Harvard**

Omotani, J., Militello, F., Easy, L. och Walkden, N. (2015) *The effects of shape and amplitude on the velocity of scrape-off layer filaments*.

** BibTeX **

@article{

Omotani2015,

author={Omotani, John and Militello, Fulvio and Easy, Luke and Walkden, Nicholas},

title={The effects of shape and amplitude on the velocity of scrape-off layer filaments},

journal={Plasma Physics and Controlled Fusion},

issn={0741-3335},

volume={58},

issue={1},

pages={014030},

abstract={A complete model of the dynamics of scrape-off layer filaments will be rather complex, including temperature evolution, three dimensional geometry and finite Larmor radius effects. However, the basic mechanism of ExB advection due to electrostatic potential driven by the diamagnetic current can be captured in a much simpler model; a complete understanding of the physics in the simpler model will then aid interpretation of more complex simulations, by allowing the new effects to be disentangled. Here we consider such a simple model, which assumes cold ions and isothermal electrons and is reduced to two dimensions. We derive the scaling with width and amplitude of the velocity of isolated scrape-off layer filaments, allowing for arbitrary elliptical cross-sections, where previously only circular cross-sections have been considered analytically. We also put the scaling with amplitude in a new and more satisfactory form. The analytical results are extensively validated with two dimensional simulations and also compared, with reasonable agreement, to three dimensional simulations having minimal variation parallel to the magnetic field.},

year={2015},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 231156

A1 Omotani, John

A1 Militello, Fulvio

A1 Easy, Luke

A1 Walkden, Nicholas

T1 The effects of shape and amplitude on the velocity of scrape-off layer filaments

YR 2015

JF Plasma Physics and Controlled Fusion

SN 0741-3335

VO 58

IS 1

AB A complete model of the dynamics of scrape-off layer filaments will be rather complex, including temperature evolution, three dimensional geometry and finite Larmor radius effects. However, the basic mechanism of ExB advection due to electrostatic potential driven by the diamagnetic current can be captured in a much simpler model; a complete understanding of the physics in the simpler model will then aid interpretation of more complex simulations, by allowing the new effects to be disentangled. Here we consider such a simple model, which assumes cold ions and isothermal electrons and is reduced to two dimensions. We derive the scaling with width and amplitude of the velocity of isolated scrape-off layer filaments, allowing for arbitrary elliptical cross-sections, where previously only circular cross-sections have been considered analytically. We also put the scaling with amplitude in a new and more satisfactory form. The analytical results are extensively validated with two dimensional simulations and also compared, with reasonable agreement, to three dimensional simulations having minimal variation parallel to the magnetic field.

LA eng

DO 10.1088/0741-3335/58/1/014030

LK http://dx.doi.org/10.1088/0741-3335/58/1/014030

OL 30