S
Steven Cowley
Researcher at Imperial College London
Publications - 187
Citations - 12844
Steven Cowley is an academic researcher from Imperial College London. The author has contributed to research in topics: Turbulence & Magnetic field. The author has an hindex of 57, co-authored 187 publications receiving 11796 citations. Previous affiliations of Steven Cowley include University of California, Los Angeles & Los Alamos National Laboratory.
Papers
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Journal ArticleDOI
Modeling transport in toroidal plasmas: Status and issues
W. A. Houlberg,W. A. Houlberg,David W. Ross,David W. Ross,G. Bateman,G. Bateman,Steven Cowley,P. C. Efthimion,P. C. Efthimion,W. W. Pfeiffer,W. W. Pfeiffer,G. D. Porter,G. D. Porter,D. E. Shumaker,D. E. Shumaker,L. E. Sugiyama,L. E. Sugiyama,J. C. Wiley,J. C. Wiley +18 more
TL;DR: In this article, it is argued that fluid transport modeling by itself cannot lead to a complete understanding of transport, there must be a very strong collaboration among theory, experiment, and modeling on both the fluid and kinetic levels.
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Inertial-Range Kinetic Turbulence in Pressure-Anisotropic Astrophysical Plasmas
TL;DR: In this paper, a theoretical framework for low-frequency electromagnetic (drift-)kinetic turbulence in a collisionless, multi-species plasma is presented, which generalises reduced magnetohydrodynamics (RMHD) and kinetic RMHD for pressure-anisotropic plasmas, allowing for species drifts.
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A Model of Turbulence in Magnetized Plasmas: Implications for the Dissipation Range in the Solar Wind
Gregory G. Howes,Steven Cowley,Steven Cowley,William Dorland,Gregory W. Hammett,Eliot Quataert,Alexander Schekochihin +6 more
TL;DR: In this article, a cascade model is presented, based on the assumptions of local nonlinear energy transfer in wavenumber space, critical balance between linear propagation and nonlinear interaction times, and the applicability of linear dissipation rates for the nonlinearly turbulent plasma.
Journal ArticleDOI
Gyrokinetic turbulence: a nonlinear route to dissipation through phase space
Alexander Schekochihin,Steven Cowley,William Dorland,Gregory W. Hammett,Gregory G. Howes,Gabriel G. Plunk,Eliot Quataert,Tomoya Tatsuno +7 more
TL;DR: In this paper, a conceptual framework for understanding kinetic plasma turbulence as a generalized form of energy cascade in phase space is presented, emphasizing that conversion of turbulent energy into thermodynamic heat is only achievable in the presence of some (however small) degree of collisionality.
Journal ArticleDOI
Toroidal effects on m=2 feedback
T. C. Hender,Steven Cowley +1 more
TL;DR: In this paper, Toroidal calculations on m = 2 magnetic feedback were performed using a coupled Δ' formulation and showed that the feedback can have a pronounced effect on the sideband (m=1 and 3) content.