Erik J. Spence
Princeton Plasma Physics Laboratory
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Featured researches published by Erik J. Spence.
Physical Review Letters | 2012
Austin Roach; Erik J. Spence; C. Gissinger; E. Edlund; P. Sloboda; Jeremy Goodman; Hantao Ji
We report on observations of a free-Shercliff-layer instability in a Taylor-Couette experiment using a liquid metal over a wide range of Reynolds numbers, Re∼10(3)-10(6). The free Shercliff layer is formed by imposing a sufficiently strong axial magnetic field across a pair of differentially rotating axial end cap rings. This layer is destabilized by a hydrodynamic Kelvin-Helmholtz-type instability, characterized by velocity fluctuations in the r-θ plane. The instability appears with an Elsasser number above unity, and saturates with an azimuthal mode number m which increases with the Elsasser number. Measurements of the structure agree well with 2D global linear mode analyses and 3D global nonlinear simulations. These observations have implications for a range of rotating MHD systems in which similar shear layers may be produced.
Bulletin of the American Physical Society | 2012
Austin Roach; Erik J. Spence; C. Gissinger; E. Edlund; P. Sloboda; H. Ji
Bulletin of the American Physical Society | 2012
J. Rhoads; Erik J. Spence; E. Edlund; P. Sloboda; H. Ji
Bulletin of the American Physical Society | 2012
J. Rhoads; A. Katzenstein; E. Edlund; P. Sloboda; Erik J. Spence; H. Ji
Bulletin of the American Physical Society | 2012
E. Edlund; Z. Yan; Erik J. Spence; Austin Roach; J. Rhoads; H. Ji
Bulletin of the American Physical Society | 2012
E. Edlund; Erik J. Spence; Austin Roach; C. Gissinger; P. Sloboda; Hantao Ji
Bulletin of the American Physical Society | 2011
E.J. Kaplan; Michael Clark; K. Rahbarnia; M. D. Nornberg; Zane Taylor; A.M. Rasmus; Cary Forest; Erik J. Spence
Bulletin of the American Physical Society | 2011
W. Love; Austin Roach; Erik J. Spence; P. Sloboda; H. Ji
Bulletin of the American Physical Society | 2011
Austin Roach; Erik J. Spence; C. Gissinger; E. Edlund; P. Sloboda; H. Ji
Bulletin of the American Physical Society | 2011
E. Edlund; Austin Roach; P. Sloboda; Erik J. Spence; H. Ji
