... 03 08 2023 29 03 2025 15 05 2025 Graphical Abstract Figure Annulus-Side Flow Boiling and Visualization of a Three-Dimensionally Enhanced Tube Both the flow boiling heat transfer and the associated flow patterns for R410A flowing within the annulus formed by an inside...

...Jianian Chen; Chao Xu; Yu Rao Experiments and numerical simulations are conducted to investigate the flow and heat transfer characteristics of the guiding pin-fin array in a rotating wedge-shaped channel that represents the internal cooling passage features for turbine blade trailing edges...

... and temperature jump at the walls as well as heat transfer coefficients decrease is observed. An increase in the Darcy number results in higher velocities for both flows. The temperature jump at the heated cylinder increases, remaining unchanged at the cooled cylinder, and the heat transfer coefficient...

...Ahmed Kouidri; Brahim Madani; Ratiba Sabrina Ferfera; Abou Houraira Abaidi; Abdellah Dahmani; Bilel Tobbal Among the methods used to enhance heat transfer, the insertion of porous media is prominent. Metallic foam is one of the most commonly used porous media in recent years; however, it presents...

... thickness from ΔT B and the need for an improved understanding of solar insolation absorption and heat transfer for a range of oil and oil emulsion slicks. e-mail:  [email protected] e-mail:  [email protected] e-mail:  [email protected] e-mail:  charlotte.marston...

...Praveen Dhanalakota; Md Motiur Rahaman; Pallab Sinha Mahapatra; A. R. Anand; Sarit Kumar Das; Arvind Pattamatta In this study, saturated pool boiling experiments were conducted on copper minichannel and flat surfaces at atmospheric pressure using water as the working fluid. The heat transfer...

...Junyu Huang; Qi Wang; Jian Wu The flow features and heat transfer enhancement of electro-thermo-convection (ETC) in dielectric liquids with residual conductivity between concentric electrodes are numerically studied based on an injection–conduction model. The strongly coupled flow field, electric...

... transfer mechanisms and devices. While one of these devices is vapor chamber (VC), an experimental study has been carried out to investigate the heat transfer performance of a VC under partial heating, varying heat fluxes, and different inclination angles for different temperatures, in the current study...

...-mail:  [email protected] e-mail:  [email protected] 1 Corresponding author. e-mail:  [email protected] 30 05 2024 02 09 2024 30 09 2024 heat transfer magnetic field mechanical vibrations Nusselt number...

... location. The average bed temperature, interphase, and bed-to-wall heat transfer coefficient at a location of 10 cm axial height also increase with the cone angle increase up to 10 deg. As a result, the conical riser, when designed with a greater cone angle up to 10 deg, exhibits more efficiency in terms...

... genetic algorithm (MOGA) is used to solve optimization problems, and three-dimensional parametric models for numerical optimization work are examined using the finite volume approach. The flow is steady, incompressible, and turbulent, and heat transfer in the heat sink is represented by conjugate heat...

... 11 2023 25 01 2024 07 03 2024 thermal spray molten alumina micro-obstructions splat heat transfer shrinkage surface roughness solidification shearing splashing In applications involving extreme environments and operating conditions, such as in aeroengines...

... and a shift in the direction of the nozzle displacement. The presence of swirling/recirculating fluid at the trailing end of the cylinder enhances heat transfer near the back end of the cylinder. The separation and the reattachment of the fluid stream differ depending on the Reynolds number, with low Reynolds...

... cooling devices. However, the lack of accurate prediction tools such as heat transfer coefficient correlations and insufficient research studies about the mechanisms controlling heat transfer processes are hindering its practical realization for key energy and cooling systems. The overall objective...

... and heat transfer performance. In this study, Gyroid (G), Diamond (D), and IWP type TPMS-based heat exchangers are constructed in three dimensions. The thermal-hydraulic, entropy production, and flow-induced noise characteristics of TPMS-based heat exchangers are numerically investigated. The results...

...Mark Schepperle; Nima Samkhaniani; Mirco Magnini; Peter Woias; Alexander Stroh Facing discrepancies between numerical simulation, experimental measurement, and theory is common in studies of fluid flow and heat transfer in microchannels. The cause of these discrepancies is often linked...

... ICHMT International Symposium on Advances in Computational Heat Transfer, Begel House , Marrakech, Morocco, May 11 – 16 . [19] Sabbagh , J. A. , and Aly , M. S. , 1993 , “ Interaction of Two-Dimensional Hot Jet and Two-Dimensional Cold Jets ,” AIAA Paper No. 93-3122. 10.2514...

...Fei Li; Chenglan Xiong; Yu Rao; Yong Luan; Bernhard Weigand The paper presents a numerical study of the heat transfer, pressure loss, and flow characteristics of swirl cooling in elliptical tubes, which are compared to the counterpart of swirl cooling in a circular tube with a diameter of D = 50.0...

...Makiko Ando; Atsushi Okamoto; Hiroki Nagai An oscillating heat pipe with check valves (CVOHP) is an attractive heat transfer device for future spacecraft with considerable heat dissipation and ground applications. This study aims to clarify the effect of the flow resistance of floating-type check...

... of expelled air from upstream air jets that increased the heat transfer rate to air and consequently instant thermal backup. Although, the use of wavy PCM unit provides instant and long thermal backup by increasing heat transfer area that augments the heat transfer to air and the collection of solar...