Results 71 to 80 of about 5,989 (213)

Self‐organization of plasma edge turbulence in interaction with recycling neutrals

Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.
Abstract Experimental results from several tokamaks suggest a strong impact of divertor density regimes on turbulent transport in the edge plasma. Reciprocally, the change in transverse transport and SOL width affects the access to density regimes, making it a fundamental topic for heat exhaust issue. Such phenomenology is highly nonlinear and can only
V. Quadri, P. Tamain, Y. Marandet, H. Bufferand, N. Rivals, G. Ciraolo, G. Falchetto, R. Düll, H. Yang   +8 more
wiley   +1 more source

Multi-machine validation of plasma initiation modelling and prospects for future devices: Predicting plasma initiation using only hardware design and control room input data

Nuclear Fusion
This paper reports on the generic prediction capability of full electromagnetic plasma initiation modelling with DYON, which was carried out for the first time in fusion research by the joint modelling of the International Tokamak Physics Activity ...
Hyun-Tae Kim, Eugenio Schuster, Fabien Jaulmes, Geoffrey Cunningham, Gloria Falchetto, Hong-Sik Yun, James Yang, Jeongwon Lee, Joelle Mailloux, Oliver Bardsley, Peter de Vries, Runze Chen, Takuma Wakatsuki, Xavier Litaudon, Yeongsun Lee, Yong-Su Na, ITPA-Integrated Operation Scenario group   +16 more
doaj   +1 more source

Toward plasma drifts in EMC3: Implementation of gradient, divergence, and particle tracing schemes

Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.
Abstract This paper presents a first implementation of gradient, divergence, and particle tracing schemes for the EMC3 code, a stochastic 3D plasma fluid code widely employed for edge plasma and impurity transport modeling in tokamaks and stellarators.
Ruben De Wolf, Felix Reimold, Yuhe Feng, Matthieu Jacobs, Wouter Dekeyser, Giovanni Samaey, Martine Baelmans   +6 more
wiley   +1 more source

Converting energy from fusion into useful forms

, 2013
If fusion power reactors are to be feasible, it will still be necessary to convert the energy of the nuclear reaction into usable form. The heat produced will be removed from the reactor core by a primary coolant, which might be water, helium, molten ...
Harrington, C., Jenkins, I., Kiely, C., Kovari, M.   +3 more
core   +1 more source

Deep reinforcement learning‐based active mass driver decoupled control framework considering control–structure interaction effects

Computer-Aided Civil and Infrastructure Engineering, Volume 39, Issue 11, Page 1573-1596, 1 June 2024.
Abstract Control–structure interaction (CSI) plays a significant role in active control systems. Popular methods incorporate actuator dynamics into an integrated control system to account for CSI, leading to a situation where existing structural control algorithms that ignore CSI cannot be applied directly.
Hongcan Yao, Ping Tan, T. Y. Yang, Fulin Zhou   +3 more
wiley   +1 more source

Summary of the 29th IAEA Fusion Energy Conference under the topics materials, in-vessel components, next-step machines, and licensing and safety and socio-economic and environment

Nuclear Fusion
This paper represents one half of a set of two, covering the TECHNOLOGY presentations at the Fusion Energy Conference (FEC), held in London, UK, in October 2023.
A. Quadling
doaj   +1 more source

MHD Convection with Joule Heating and Internal Heat Generation in a Two‐Layer Discretely Heated Chamber Partly Filled with Porous Medium

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
The present research presents an innovative approach by integrating magnetohydrodynamic (MHD) flow with resistive heating, integrating a partly permeable layer and interior heat production to scrutinize natural convective flow within a square domain. It also examines both straight and wavy interfaces between the porous and fluid domains.
Nahid Hasan, Niloy Deb, Sumon Saha, Mohamed Zbair   +3 more
wiley   +1 more source

Full orbit simulations of collisional impurity transport in spherical tokamak plasmas with strongly-sheared electric fields

, 2011
The collisional dynamics of test impurity ions in spherical tokamak plasmas with strongly-sheared radial electric fields is investigated by means of a test particle full orbit simulation code.
McClements, K. G., Verwichte, E., Wrench, C. G.   +2 more
core  

Mechanical model for a full fusion tokamak enabled by supercomputing

Nuclear Fusion
Determining stress and strain in a component of a fusion power plant involves defining boundary conditions for the mechanical equilibrium equations, which implies the availability of a full reactor model for defining those conditions.
W.M.E. Ellis, L. Reali, A. Davis, H.M. Brooks, I. Katramados, A.J. Thornton, R.J. Akers, S.L. Dudarev   +7 more
doaj   +1 more source

Progress of the Plasma Centerpost for the PROTO-SPHERA Spherical Tokamak

Energies, 2016
Plasma properties can be useful in a wide spectrum of applications. Experimental projects on controlled nuclear fusion are the most challenging of these applications and, at the same time, the best way to approach plasma science.
Alessandro Lampasi, Giuseppe Maffia, Franco Alladio, Luca Boncagni, Federica Causa, Edmondo Giovannozzi, Luigi Andrea Grosso, Alessandro Mancuso, Paolo Micozzi, Valerio Piergotti, Giuliano Rocchi, Alessandro Sibio, Benedetto Tilia, Vincenzo Zanza   +13 more
doaj   +1 more source