Physics

Theoretical Physics Institute

2017 Hiroomi Umezawa Lecture:  

Patrick H. Diamond

Patrick H. Diamond
University of California,
San Diego
Tuesday, May 9, 2017, 3:15 pm
CCIS L1-160

 

Pattern formation in magnetically confined plasmas: why it matters

This colloquium will discuss the physics of turbulent transport in magnetic confinement devices, such as tokamaks, with special emphasis on scale selection and its consequences. Using analogies with turbulent pipe flow and geophysical fluids, the basic physics of magnetized plasma turbulent transport is developed. Then, the two principle secondary patterns-avalanches and zonal shear flows-are introduced. Scale selection is linked to the natural competition between these two structures. We present the ExB staircase as the natural resolution to the competition, and discuss recent work on the bstaircase and layering dynamics. Throughout , we discuss the implications of the physics for achieving ignition in a magnetically confined plasma.

This talk is the 2017 Hiroomi Umezawa Memorial Lecture.

(Coffee and doughnuts at 3:00 pm)


Theoretical Physics Institute Mission Statement

According to the Constitution and Bylaws of the Theoretical Physics Institute of the University of Alberta, the Objective is the following:

"The objective of the Institute is to promote theoretical physics in Canada by providing at the University of Alberta a uniquely favourable environment for productive and significant research."
In practice, this objective is mainly accomplished by the use of TPI funds for bringing in visitors and visiting speakers and organizing conferences. These events provide opportunities for interactions among theorists in Canada and in particular expose those at the University of Alberta to ideas of those from the broader community.

 

Director: Richard Sydora