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Heat Transfer Characteristics of Turbulent Flow in Double-90°-Bend Pipes
Energies, 2023 This study evaluates the heat dissipation and Nusselt number for an S-shaped double-bend pipe, for which an experimental evaluation is lacking. In terms of the velocity field, the mean velocity and turbulent kinetic energy were measured through particle ...
Yuki Kato +8 more
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Heat Transfer in Turbulent Shear Flow [PDF]
Journal of the Aeronautical Sciences, 1956 A new and relatively simple description is proposed for the velocity profile in turbulent flow close to a smooth wall. Heat transfer coefficients are calculated from the description and are shown to agree better with experiment than other theories. The analysis is extended to transport processes in liquids where the viscosity has a large variation ...
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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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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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, 2010 Heat transfer by natural convection in triangular enclosures is an area of significant importance in applications such as the design of greenhouses, attics and solar water heaters.
Carson, James K. +2 more
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Interaction effects between surface radiation and double-diffusive turbulent natural convection in an enclosed cavity filled with solid obstacles [PDF]
, 2012 The work reported here is a 2D numerical study on the buoyancy-driven low speed flow of humid air inside a rectangular cavity partially filled with solid cylindrical objects and whose vertical walls are maintained at 1.2 and 21 oC.
Roger Penlington +5 more
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