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Direct numerical simulation of turbulent heat transfer over hemispherical roughness
Nihon Kikai Gakkai ronbunshu, 2020 Direct numerical simulation of turbulent heat transfer over hemispherical roughness is carried out by the double-distribution function lattice Boltzmann method (LBM).
Rika NAGURA +2 more
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A review on turbulent flow over rough surfaces: Fundamentals and theories
International Journal of Thermofluids, 2021 Surface roughness can significantly influence the fluid dynamics and heat transfer in convective flows by inducing perturbations in the velocity profile which affect surface drag, turbulent mixing and heat transfer.
Mohammadreza Kadivar +2 more
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The Lagrangian picture of heat transfer in convective turbulence [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2010 Abstract of video submission to the Gallery of Fluid Motion (APS-DFD Meeting in Minneapolis)
Boltes, M., Zilken, H., Schumacher, J.
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Nuclear Engineering and TechnologyLiquid lead-bismuth eutectic (LBE) alloy exhibits excellent thermo-hydraulic properties and chemical inertness as a coolant for fast reactors. Unlike conventional fluids such as water and air, LBE has a lower Prandtl number (Pr), and its local turbulent ...
YaoDi Li +3 more
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International Journal of Engineering Materials and Manufacture, 2018 This paper reports an experimental analysis to investigate the enhancement of turbulent heat transfer flow of air through one smooth tube and four different tubes with wire-coil inserts (Pitches, Pc = 12, 24, 40, and 50 mm with corresponding helix angles,
Mohammad Zoynal Abedin +1 more
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Investigation on Turbulent Nanofluid Flow in Helical Tube in Tube Heat Exchangers [PDF]
Journal of Heat and Mass Transfer Research, 2019 In this study, the thermal characteristics of turbulent nanofluid flow in a helical tube in the tube heat exchanger (HTTHE) were assessed numerically through computational fluid dynamics (CFD) simulation.
Puriya Mohamad Gholy Nejad +3 more
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Nuclear Engineering and Technology, 2023 Conjugate heat transfer between liquid metal and solid is a common phenomenon in a liquid-metal-cooled fast reactor's fuel assembly and heat exchanger, dramatically affecting the reactor’s safety and economy.
Xian-Wen Li +4 more
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Numerical Investigation of Turbulent Heat Transfer Properties at Low Prandtl Number
Frontiers in Energy Research, 2020 The sodium-cooled fast reactor (SFR), which is one of the most promising candidates for meeting the goal declared by the Generation IV International Forum (GIF), has drawn a lot of attention.
Xiang Chai +3 more
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Heat Transfer in Drop-Laden Turbulence
Journal of Fluid MechanicsHeat transfer by large deformable drops in a turbulent flow is a complex and rich-in-physics system, in which drop deformation, breakage and coalescence influence the transport of heat. We study this problem by coupling direct numerical simulation (DNS) of turbulence with a phase-field method for the interface description.
Francesca Mangani +3 more
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Energies, 2019 In-depth understanding and analysis of turbulent convection heat transfer of supercritical water under semicircular heating conditions play a major role in system design and security.
Zhenchuan Wang, Guoli Qi, Meijun Li
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