Results 11 to 20 of about 159,995 (298)

The physics of turbulence localised to the tokamak divertor volume

open access: yesCommunications Physics, 2022
Fusion generated within magnetically confined plasmas offers a promising route to clean baseload energy but the intense heat and particle flux generated in the process presents a major challenge for future power plant devices.
Nicholas Walkden   +6 more
doaj   +1 more source

Thermal-hydraulic modelling and analysis of ITER tungsten divertor monoblock

open access: yesNuclear Materials and Energy, 2021
The divertor is a fundamental component of fusion power plants, being primarily responsible for power exhaust and impurity removal via guided plasma exhaust.
Salah El-Din El-Morshedy
doaj   +1 more source

Electromagnetic turbulence simulation of tokamak edge plasma dynamics and divertor heat load during thermal quench

open access: yesNuclear Fusion, 2023
The edge plasma turbulence and transport dynamics, as well as the divertor power loads during the thermal-quench phase of tokamak disruptions, are numerically investigated with BOUT++’s flux-driven six-field electromagnetic turbulence model.
Ben Zhu, Xue-qiao Xu, Xian-Zhu Tang
doaj   +1 more source

Feedback system for divertor impurity seeding based on real-time measurements of surface heat flux in the Alcator C-Mod tokamak [PDF]

open access: yes, 2016
Mitigation of the intense heat flux to the divertor is one of the outstanding problems in fusion energy. One technique that has shown promise is impurity seeding, i.e., the injection of low-Z gaseous impurities (typically N2 or Ne) to radiate and ...
Brunner, D.   +5 more
core   +1 more source

Three-dimensional simulations of laser-plasma interactions at ultrahigh intensities [PDF]

open access: yes, 2011
Three-dimensional (3D) particle-in-cell (PIC) simulations are used to investigate the interaction of ultrahigh intensity lasers ($> 10^{20}$ W/cm$^{-2}$) with matter at overcritical densities.
Fiuza, F.   +5 more
core   +2 more sources

On the radiative equilibrium of irradiated planetary atmospheres [PDF]

open access: yes, 2010
The evolution of stars and planets is mostly controlled by the properties of their atmosphere. This is particularly true in the case of exoplanets close to their stars, for which one has to account both for an (often intense) irradiation flux, and from ...
Alonso   +48 more
core   +5 more sources

Determination of the Heat Distribution in the Raw Cotton Packed in the Coil [PDF]

open access: yes, 2017
As a result of experimental studies, a special mathematical model of raw cotton is developed. The effect of density change on the thermal conductivity coefficient is determined.
Kerimov, Q. K. (Qusni)   +2 more
core   +2 more sources

Geometric optimization of bodies submitted to an intense heat flux using bifurcated channel nets

open access: yesVetor, 2010
The present work studies the geometric optimization of a body submitted to intense heat flux. The body to be optimized is refrigerated by a ducts system whose circulating fluid will remove the heat.
Claus de Rosso Bolzan   +3 more
doaj   +4 more sources

A thermodynamical model for rainfall-triggered volcanic dome collapse [PDF]

open access: yes, 2004
Dome-forming volcanic eruptions typically involve the slow extrusion of viscous lava onto a steep-sided volcano punctuated by collapse and the generation of hazardous pyroclastic flows.
Adrian J. Matthews   +14 more
core   +1 more source

Thermal optimization of circular bodies submitted to an intense heat flux using constructal design

open access: yesVetor, 2010
The present work studies the optimization of a circular body with an intense heat flux by Constructal Design. The problem concerns the minimization of the global thermal resistance of a three-dimensional structure submitted to an intense uniform heat ...
Leandro Cavalheiro Vergara   +2 more
doaj   +4 more sources

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