Rameswar Singh, Ph.D.
Project Scientist — University of California San Diego
Dr. Rameswar Singh conducts research on magnetic fusion energy with particular interests in zonal flows, momentum transport, turbulence, instabilities, and shearing effects in tokamak plasmas.
For his PhD, Dr. Singh studied momentum transport, zonal flows, and microturbulence in tokamaks at the Institute for Plasma Research, Homi Bhabha National Institute (Bhat, Gandhinager, India).
“I’m fascinated by how transport channels become coupled to form a complex transport matrix. This shows how our understanding of tokamak plasmas as self-organized systems is far from complete.”
He has studied the generation of intrinsic rotation, geodesic acoustic modes, and shell models of turbulence. He uses both fluid and gyro-kinetic frameworks in his theoretical approaches.
Dr. Singh’s fellowships include the Postdoctoral Fellowship at the Laboratoire de Physique des Plasmas (Ecole Polytechnique, France) and the Indo-Swiss Joint Research Fellowship (Lausanne, France).
He has presented at numerous scientific conferences—Festival de Théorie (France), Ecole de Physique des Houches (France), IAEA Fusion Energy Conferences (Russia, Korea), and other schools and workshops.
Before joining FAPPG as Project Scientist, Dr. Singh was Postdoctoral Researcher at UC San Diego and the Institute for Plasma Research (Bhat, Gandhinagar, India).
He is a member of the Plasma Science Society of India.
On the Web
Email: rsingh@physics.ucsd.edu
Publications
Geometric Dependencies of the Mean ExB Shearing Rate in Negative Triangularity Tokamaks
Singh, Rameswar, Patrick H. Diamond and A.O. Nelson
Nucl. Fusion 63, 126053; doi:10.1088/1741-4326/ad0605
[download PDF]
How the Birth and Death of Shear Layers Determine Confinement Evolution: From the L → H Transition to the Density Limit
Diamond, P.H., Rameswar Singh, Ting Long, Rongjie Hong, Rui Ke, Zheng Yan, Mingyun Cao and G.R. Tynan
Phil. Trans. R. Soc. A 381, 20210227, 2023; doi:10.1098/rsta.2021.0227
[download PDF]
Zonal Shear Layer Collapse and the Power Scaling of the Density Limit: Old L-H Wine in New Bottles
Singh, Rameswar and P.H. Diamond
Plasma Phys. Control. Fusion 64, 084004, 2022; doi:10.1088/1361-6587/ac7972
[download PDF]
Bounds on Edge Shear Layer Persistence While Approaching the Density Limit
Singh, Rameswar and P.H. Diamond
Nucl. Fusion 61, 076009, 2021; doi:10.1088/1741-4326/abfadb
[download PDF]
A Unified Theory of Zonal Flow Shears and Density Corrugations in Drift Wave Turbulence
Rameswar Singh and P.H. Diamond
Plasma Phys. Control. Fusion 63, 035015, 2021; doi:10.1088/1361-6587/abd618
[download PDF]
When Does Turbulence Spreading Matter?
Singh, Rameswar and P.H. Diamond
Phys. Plasmas 27, 042308, 2020; doi:10.1063/1.5117835
[download PDF]
Zonal Flow Screening in Negative Triangularity Tokamaks
Singh, Rameswar and P.H. Diamond
Nucl. Fusion 2022 ; doi:10.1088/1741-4326/ac945e
See more Publications.
https://orcid.org/0000-0002-3556-2754