Results 21 to 30 of about 2,473,114 (224)

Modeling dust in a tokamak

open access: yesScilight, 2020
Investigators develop a simulation method to study dust transport in tokamak fusion reactors, revealing unexpected features that could affect future reactor plans.
openaire   +1 more source

Modelling for JET Vertical Stabilization System [PDF]

open access: yes, 2010
Nuclear fusion is, in a sense, the opposite of nuclear fission. Fission, which is a mature technology, produces energy through the splitting of heavy atoms like uranium in controlled chain reactions.
Bellizio, Teresa
core   +1 more source

Models of Tokamak Disruptions

open access: yes, 2023
Disruptions are a serious issue in tokamaks. In a disruption, the thermal energy is lost by means of an instability which could be a resistive wall tearing mode (RWTM). During precursors to a disruption, the plasma edge region cools, causing the current to contract.
openaire   +2 more sources

Simulation of edge localized mode heat pulse using drift-kinetic ions and Boltzmann electrons

open access: yesNuclear Materials and Energy, 2019
This article reports on 1D+2V heat pulse propagation studies using the COGENT guiding center kinetic code. The model uses magnetized kinetic ions and a simple Boltzmann electron model.
I. Joseph, M.A. Dorf, M.R. Dorr
doaj   +1 more source

Current Challenges in the First Principle Quantitative Modelling of the Lower Hybrid Current Drive in Tokamaks

open access: yesEPJ Web of Conferences, 2017
The Lower Hybrid (LH) wave is widely used in existing tokamaks for tailoring current density profile or extending pulse duration to steady-state regimes.
Peysson Y.   +12 more
doaj   +1 more source

Integrated modeling of boron powder injection for real-time plasma-facing component conditioning

open access: yesNuclear Materials and Energy
An integrated modeling framework for investigating the application of solid boron (B) powder injection for real-time surface conditioning of plasma-facing components (PFCs) in tokamak environments is presented.
F. Effenberg   +8 more
doaj   +1 more source

Comprehensive numerical modelling of tokamaks [PDF]

open access: yes, 1991
We outline a plan for the development of a comprehensive numerical model of tokamaks. The model would consist of a suite of independent, communicating packages describing the various aspects of tokamak performance (core and edge transport coefficients and profiles, heating, fueling, magnetic configuration, etc.) as well as extensive diagnostics.
Cohen, R.H., Cohen, B.I., Dubois, P.F.
openaire   +2 more sources

Implementation of a Real-Time Simulator for Dynamic Systems [PDF]

open access: yesIJCI International Journal of Computers and Information, 2007
Real-time systems refer to systems that have real-time requirements for interacting with a human operator or otheragents with similar timescales. An efficient simulation of real-time systems requires a model that is accurate enough toaccomplish the ...
Hatem Ahmed   +3 more
doaj   +1 more source

A machine-learning-based tool for last closed-flux surface reconstruction on tokamaks

open access: yesNuclear Fusion, 2023
Tokamaks allow to confine fusion plasma with magnetic fields. The prediction/reconstruction of the last closed-flux surface (LCFS) is one of the primary challenges in the control of the magnetic configuration.
Chenguang Wan   +6 more
doaj   +1 more source

Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin   +3 more
wiley   +1 more source

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