Investigation of the thermo-convective characteristics of a flow passing through a partially heated channel filled with a porous medium saturated with a hybrid nanofluid DOI

Nadhir Ghodbane,

Azeddine Soudani,

Rahmoune Imene

et al.

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 26

Published: April 4, 2024

As part of this study, we used three-dimensional numerical simulations to look into mixed thermal convection in a nanofluid that flows partially heated cylindrical channel without being able be compressed. Our study specifically focused on two distinct configurations: the investigation laminar regime using hybrid under both porous and nonporous conditions. The adds scientific understanding heat transfer processes complex fluid–solid systems contributes ongoing advancement knowledge fields engineering research. This research involved investigations varying nanoparticle volume fractions (0%–4%), Reynolds numbers within range 200–800, Richardson between 1 2, fixed Darcy number Da=10−8. analytical methodology thorough assessment temperature, velocity, distributions nanofluid. did showed adding nanoparticles made base fluid's effective conductivity much better. rate go up. Specifically, Al2O3-CuO-water displayed noteworthy improvement. Furthermore, incorporation matrix substantially enhanced overall efficiency process.

Language: Английский

Heat transfer performance and entropy generation analysis of Taylor–Couette flow with helical slit wall DOI Creative Commons
Dong Liu,

Ya-Zhou Song,

Si-Liang Sun

et al.

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 53, P. 103852 - 103852

Published: Dec. 4, 2023

The turbulent flow between concentric cylinders and its heat transfer performance is studied by the large eddy simulation. models with longitudinal slit helical spacing in range from 168 to 672 mm on outer cylinder are investigated compare their ability. Further, notion of field synergy entropy formation serves as foundation for evaluating qualities. According results, enhancement effect slits better than that slits. Helical more effective promoting fluid mixing at different temperatures within annulus. In terms synergy, exhibit a smaller angle compared model various Reynolds numbers 3061 4592. Results using indicate an improved coordination velocity temperature fields. Thermodynamic analysis reveals have lower generation models. Higher efficiency energy utilization superior properties noticed. Findings this study provide valuable insights optimal design rotating machinery applications.

Language: Английский

Citations

30
Bioconvective blood flow of tetra composition nanofluids passing through a stenotic artery with Arrhenius energy DOI
Zahra S. Hafed, Anas A. M. Arafa, Sameh A. Hussein

et al.

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 24

Published: Dec. 11, 2023

The uncoupled forced blood flow in a stenosed artery using tetra-hybrid nanofluids is examined. worked suspension electrically conducting and containing oxytactic microorganisms. direction of movements the perpendicular to applied Lorentz force. During formulation problem, several significant impacts are taken into account, for instance Joule heating, dissipation viscosity, heat generation activation energy proposed by Arrhenius. Four situations considered based on components nano-mixture, namely, mono-, Di-, Tri- Tetra hybrid nanofluids. method treatments starts with converting governing system dimensionless similar forms solve numerically. major results indicated that rate transport case Tetra-hybrid higher than those other cases. rising Weissenberg number enhances values coefficient skin friction.

Language: Английский

Citations

30
Numerical tackling for MHD Darcy-Forchheimer flow of water-based CNTs in a rotating frame with homogeneous-heterogeneous reactions: An artificial neural network approach DOI

K. Senthilvadivu,

S. Eswaramoorthi,

K. Loganathan

et al.

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 21

Published: July 4, 2024

Numerous scientific fields rely heavily on rotating flows, such as jet engine design, geophysical turbine engineering, vacuum cleaner and many others. Prior research rotational flow has largely disregarded the impact of viscous dissipation homogeneous-heterogeneous responses. The present study investigates Darcy-Forchheimer carbon nanotubes (CNTs) in a frame caused by biaxial stretched plate with heat consumption radiation. Furthermore, mass transport mechanism is treated terms chemical reactions. equations governing are reduced into ordinary differential using appropriate transforms. An advanced computational technique, bvp4c, been used to provide precise numerical solutions.The computation resulting systems also performed an artificial neural network (ANN) machine learning shows high correlation between ANN findings, mean squared error (MSE) 0.000053 for SWCNT 0.000268 MWCNT. A comprehensive investigation several parameters yields both graphical outcomes. It discovered that larger values Forchheimer number porosity parameter result decay fluid velocities. x− direction skin friction coefficient 50% y− improved 46% when magnetic field enhanced 200%. 200% leads reducing local Nusselt 22% CNTs.

Language: Английский

Citations

14
Entropy and melting heat transfer assessment of tangent hyperbolic fluid flowing over a rotating disk DOI

Priya Bartwal,

Himanshu Upreti, Alok Kumar Pandey

et al.

Journal of Thermal Analysis and Calorimetry, Journal Year: 2024, Volume and Issue: 149(11), P. 5783 - 5798

Published: June 1, 2024

Language: Английский

Citations

11
Mixed Convection Flow of MHD Casson Nanofluid over a Vertically Extending Sheet with Effects of Hall, Ion Slip and Nonlinear Thermal Radiation DOI Creative Commons
Wubale Demis Alamirew, Gurju Awgichew,

Eshetu Haile

et al.

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 23, P. 100762 - 100762

Published: July 14, 2024

This manuscript investigates the effects of viscous dissipation, Ohmic heating, nonlinear thermal radiation, chemical reactions, Hall current, and ion slip on mixed convection flow magnetohydrodynamic (MHD) Casson nanofluid over a vertically stretching sheet in spongy medium. The strongly ordinary differential equations (ODEs) derived from governing are solved using sixth-order, seven-stage Runge–Kutta (RK6) method conjunction with shooting technique. Numerical simulations conducted an open-source Python programming language. study evaluates temperature, velocity, nanoparticle concentration, skin friction coefficients, Nusselt number (rate heat transfer), Sherwood mass transfer) based dimensionless parameters. Key findings reveal that increasing currents enhance velocity profile x-direction, while parameter exerts diminishing effect. fluid temperature decreases higher parameter, values but increases due to ratio Eckert number. Furthermore, reaction Schmidt reduce concentration within boundary layer, amplifying this also examines rates mass, heat, momentum transfer near surface under varying influences, presenting results through comprehensive graphs tables. To validate numerical method, comparative analysis is against previous studies, demonstrating excellent agreement thus confirming reliability accuracy computational approach.

Language: Английский

Citations

10
Scientific exploring of Marangoni convection in stagnation point flow of blood-based carbon nanotubes nanofluid over an unsteady stretching surface DOI Creative Commons
Ali Rehman, Dolat Khan, Rashid Jan

et al.

International Journal of Thermofluids, Journal Year: 2023, Volume and Issue: 20, P. 100470 - 100470

Published: Sept. 25, 2023

This study examines marangoni convection in blood-based carbon nanotubes nanofluid's stagnation point flow over a time-dependent stretching surface. is inspired by the emerging importance of nanofluids variety scientific and technical fields due to their unique varied uses effective thermal activities. Some examples potential applications these fluids include cancer treatment, magnetic refrigeration, drug delivery, resonance imaging. Two types nanoparticles are considered name single wall nanotube multi blood takin as base fluid. Nonlinear partial differential equations used simulate specified issue using momentum energy conservation principles. Using similarity transformation, resultant transformed into nonlinear with reduced dimensions. The relations for velocity profile temperature distribution calculated from developed ordinary equation an approximate analytical technique called homotopy asymptotic method. Subsequently, implemented executed within Mathematica software. investigation focuses on significant outcomes such filed, Skin friction coefficients, Nusselt number. Graphs interpret effects several factors, including Marangoni parameter, nanoparticle volume friction, slip Prandtl behavior Nusselt's number skin coefficient was also checked help graphs tables. convergence solutions auxiliary functions well.

Language: Английский

Citations

14
MHD Casson flow over a solid sphere surrounded by porous material in the presence of Stefan blowing and slip conditions DOI Creative Commons
Amal Al-Hanaya,

Z. Z. Rashed,

Sameh E. Ahmed

et al.

Alexandria Engineering Journal, Journal Year: 2024, Volume and Issue: 103, P. 402 - 412

Published: Aug. 1, 2024

Flow around a solid sphere finds utility in numerous single- and two-phase engineering applications, such as sport balls, combustion systems, silt conveyance waterways, hydraulic conveying, pneumatic equipment, food chemical manufacturing. Therefore, this paper aims to examine the Casson nanofluids flow heat transfer over that is saturated an isotropic porous material presence of Stefan blowing slip conditions. The forced situation due stagnation point while surface subjected thermal Besides, various significant impacts are taken into account Lorentz force, radiation, source/sink, activation energy. solution technique based on non-similar transformations implicit finite difference method with Blottner algorithm. It remarkable that, for all values parameter, growth number reduces gradients velocity, temperature, nanoparticle concentration. Also, factor temperature distributions. Additionaly, increase either parameter or Darcy enhances both concentration diminishing. Furthermore, there improvement Nusselt up 50.57 % when magnetic varied from 0 6.

Language: Английский

Citations

5
Cattaneo-Christov Heat and Mass Model for Radiative EMHD Aluminum Alloys (7072/7072 + 7075 T6) with Transformer Base Oil Hybrid Nanofluid Over an Exponentially Stretching Sheet DOI
Sumit Gupta, Virendra Swaroop Sangtani,

Chandra Prakash Jain

et al.

BioNanoScience, Journal Year: 2024, Volume and Issue: 14(5), P. 5246 - 5264

Published: Feb. 21, 2024

Language: Английский

Citations

4
MHD radiative Gr-Ag-TiO 2 /H 2 O ternary hybrid nanofluid flow upon a permeable movable wedge with irreversibility analysis DOI
Hamza Berrehal, Saeed Dinarvand, P. Soni

et al.

International Journal of Modelling and Simulation, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: March 18, 2024

The mass-based ternary hybrid nanofluid model is applied for the magnetohydrodynamic (MHD) flow over a moving wedge with wall permeability, thermal radiation, and convective boundary condition. masses of nanoparticles base fluid are considered instead volumetric concentration first, second, third nanoparticles. In water, three types such as titania, silver, graphene have been embedded. A similarity method used to reduce variables also turn prominent equations into simplified form. shooting technique Runge-Kutta-Felhberg has numerically solve converted layer equations. largest Nusselt number related nanofluid, in which heat transfer enhancement 6.55% obtained comparison regular fluid. five shapes (when both first second spherical), when nanoparticle shape disk, most occurred. highest entropy generation stagnation point case (m = 1) lowest belongs t downhill –0.0825).

Language: Английский

Citations

4
Shape factor and temperature-dependent viscosity analysis for the unsteady flow of magnetic Al$$_2$$O$$_3$$–TiO$$_2/$$C$$_2$$H$$_6$$O$$_2$$–H$$_2$$O using Legendre wavelet technique DOI
Tanya Gupta, Alok Kumar Pandey, Manoj Kumar

et al.

Pramana, Journal Year: 2024, Volume and Issue: 98(2)

Published: May 11, 2024

Language: Английский

Citations

4