Results 1 to 10 of about 16,276 (116)

Numerical simulation of the gas flow with radiation and heat transfer [PDF]

open access: yesEPJ Web of Conferences, 2022
In this article we focus on the heating of the solid body placed in the vicinity of the intense heat source. We simulate the heat transfer caused by the direct contact with surrounding heated gas. Furthermore it is necessary to take into account the heat
Česenek Jan   +2 more
doaj   +1 more source

Assessing IDDES-Based Wall-Modeled Large-Eddy Simulation (WMLES) for Separated Flows with Heat Transfer

open access: yesFluids, 2021
The Wall-modeled Large-eddy Simulation (WMLES) methods are commonly accompanied with an underprediction of the skin friction and a deviation of the velocity profile. The widely-used Improved Delayed Detached Eddy Simulation (IDDES) method is suggested to
Rozie Zangeneh
doaj   +1 more source

Influence of heater size on critical heat flux in flat microchannels with intense localized heating [PDF]

open access: yesE3S Web of Conferences, 2023
Experiments were carried out on flow boiling in mini- and micro- channels under local heating for different heater size. It was found that with an increase in the channel height in the range of 0.2–3.7 mm, the intensity of heat transfer and the critical ...
Pukhovoy Maxim V.   +2 more
doaj   +1 more source

Multiscale particle simulation of the temporal evolution of heat flux into poloidal gaps of castellated divertor with edge-localized modes

open access: yesNuclear Fusion, 2023
Edge-localized modes (ELMs) produce an intense transient heat flux on castellated divertor mono-blocks (MBs). The parallel transport of electrons and ions from the ELM burst varies due to their different velocities, which significantly influences the ...
Guo-Jian Niu   +8 more
doaj   +1 more source

Pool Boiling Performance of Multilayer Micromeshes for Commercial High-Power Cooling

open access: yesMicromachines, 2021
With the rapid development of electronics, thermal management has become one of the most crucial issues. Intense research has focused on surface modifications used to enhance heat transfer.
Kairui Tang   +6 more
doaj   +1 more source

Convective heat transfer mechanisms of molten phase change material in a vertical slender rectangular cavity: A numerical case study

open access: yesCase Studies in Thermal Engineering, 2021
In this paper, the convective heat transfer pattern of molten phase change material (mPCM) in a slender rectangular cavity with constant heat flux boundary condition at one side and flow boundary condition at opposite side is numerically investigated ...
Peiyi Li   +4 more
doaj   +1 more source

Studies on heat transfer characteristics of vapor chamber under periodic-pulsed heat source

open access: yesAdvances in Mechanical Engineering, 2022
In a high-power microwave device, the intense electron beam causes a high-heat-flux on the collector’s inner surface which results in an instant temperature increase which eventually causes the output power to drop.
Tengyue Ma   +6 more
doaj   +1 more source

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

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