Results 41 to 50 of about 8,289 (186)

Research on Heat Transfer Enhancement of Spiral Grooved Tube Heat Exchangers Based on CFD and Artificial Intelligence

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Driven by the energy crisis and carbon neutrality goals, high‐efficiency heat exchange equipment has become a core demand in the industrial sector. The spiral grooved double‐pipe heat exchanger exhibits significant heat transfer enhancement advantages, yet it requires balancing heat transfer efficiency and pressure loss.
Yueyun Yang, Wei Li, Xiuzhi Xi, Neng Gao
wiley   +1 more source

Impact of central versus side jet impingement configurations on the cooling of a gas turbine leading edge at varying reynolds numbers and rotational speeds: experimental investigations

International Journal of Thermofluids
This experimental study investigated the cooling performance of two jet impingement configurations central and side. The effects of Reynolds numbers ranging from 5000 to 11,000 and rotation speeds ranging from 0 to 200 rpm on the total heat transfer ...
Ahmad Alqasrawi, Emad Elnajjar, Amin Safi, Mohammad O. Hamdan, Salah A.B. Al Omari   +4 more
doaj   +1 more source

Transition of thermally induced flow in a square cavity using Spectral Method [PDF]

E3S Web of Conferences
This study presents a novel mesh-free method for simulating natural convection in a square cavity filled with Newtonian fluid. The proposed algorithm integrates mesh-free Spectral methods with the Moving Collocation Element (MCOE) technique and employs a
Laasl Boutayna, Hilali Youssef, Mesmoudi Said, Askour Omar, Bourihane Oussama   +4 more
doaj   +1 more source

Correlations of Heat Transfer and Fluid Flow Data for Lattice Brick Settings in Tunnel Kilns

Energies, 2023
This paper proposes correlation equations of heat transfer and pressure drop for the design and operation of tunnel kilns loaded with lattice brick settings of different geometrical parameters in the form of Nusselt number and friction factor.
Issa F. Almesri, Mosab A. Alrahmani, Jaber H. Almutairi, Hosny Z. Abou-Ziyan   +3 more
doaj   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Upper bounds on Nusselt number at finite Prandtl number

Journal of Differential Equations, 2016
We study Rayleigh Bénard convection based on the Boussinesq approximation. We are interested in upper bounds on the Nusselt number $\mathrm{Nu}$, the upwards heat transport, in terms of the Rayleigh number $\mathrm{Ra}$, that characterizes the relative strength of the driving mechanism and the Prandtl number $\mathrm{Pr}$, that characterizes the ...
Antoine Choffrut, Camilla Nobili, Felix Otto   +2 more
openaire   +3 more sources

Use of Fin Equation to Calculate Nusselt Numbers for Rotating Discs [PDF]

Volume 5C: Heat Transfer, 2015
Conduction in thin discs can be modelled using the fin equation, and there are analytical solutions of this equation for a circular disc with a constant heat-transfer coefficient. However, convection (particularly free convection) in rotating-disc systems is a conjugate problem: the heat transfer in the fluid and the solid are coupled, and the relative
Tang, Hui, Shardlow, Tony, Owen, J. Michael   +2 more
openaire   +1 more source

Grid Independence Study and a Finite Difference Collocation Approach for Magnetized CeO2‐Ti3C2/H2O Hybrid Nanofluid Flow Over an Inclined Spinning Disk With Newtonian Heating

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This work examines magnetohydrodynamic (CeO2, Ti3C2/H2O) hybrid nanofluid (HNF) flow on an inclined revolving disk with effects of Newtonian heating. HNF is obtained by suspending the nanoparticles (NPs) of CeO2 and Ti3C2 in water (H2O). The flow is affected by mixed convection, Joule heating, nonlinear thermally radiative and dissipative ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Analysis of Energy Flux Vector on Natural Convection Heat Transfer in Porous Wavy-Wall Square Cavity with Partially-Heated Surface

Energies, 2019
The study utilizes the energy-flux-vector method to analyze the heat transfer characteristics of natural convection in a wavy-wall porous square cavity with a partially-heated bottom surface.
Yan-Ting Lin, Ching-Chang Cho
doaj   +1 more source

Background flow hidden in a bound for Nusselt number

Physica D: Nonlinear Phenomena, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources