On the corrugation effect on thermo-fluids characteristics and entropy generation in channels equipped with wavy and straight sections

Journal of Engineering Research, Год журнала: 2024, Номер unknown

Опубликована: Май 1, 2024

A numerical simulation was performed to investigate the characteristics of thermo-fluids and irreversibility generation laminar forced convection through three different channel designs. This article first presents a comprehensive study combination straight wavy sections in order create balance between improved thermal performance from design optimized flow properties section, leading an overall enhancement cooling efficiency. novel has been considered using configuration that consists lengths is named (cases I, II, III). The outcomes are shown terms average Nu, ratio (ER), factor, total generation, as well contours streamlines, isothermal, Bejan numbers for values Reynolds number range 5≤Re≤400 dimensionless wave amplitude 0.3≤α≤0.6. results were compared cases with plane channel, revealing augmentation HTR 73.7%, 64.9%, 43.3% III, respectively. On other hand, both Re α, increases continuously.

Язык: Английский

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Impact of Darcy-Forchheimer for the flow analysis of radiated tangent hyperbolic fluid with viscous dissipation and activation energy

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 72, С. 949 - 957

Опубликована: Июнь 1, 2024

Язык: Английский

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Transportation of melting heat in stratified Jeffrey fluid flow with heat generation and magnetic field

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 58, С. 104465 - 104465

Опубликована: Апрель 28, 2024

In current years, storage of energy is a challenging task for the scientists and researchers. So, they are interested to develop some extra ordinary techniques storage. Thus, our main theme here focus on latent heat (melting heat) which more economical sustainable. Transportation melting in quadratic stratified Jeffrey fluid flow vicinity stagnation point scrutinized. The deformed by linear stretchable sheet. Characteristics transportation scrutinized through viscous dissipation generation or absorption. Constant magnetic field implemented electrically conducting vertical direction. arising governing equations converted non-dimensional state suitable transformations. Homotopic technique utilized simulation solutions. Graphical behavior velocity temperature fields investigated corresponding relevant parameters. As conclusion, higher amount can be achieved as phenomenon enhances, also results low temperature. Further, dominant stratification decays field. Current study will play key role industrial liquids like polymer solutions make high quality fiberglass, paints, silicone valves etc. This deliberate efficiently phase change procedure i.e., phenomenon.

Язык: Английский

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Numerical investigation of heat transfer enhancement in magnetohydrodynamics ternary ferrofluids on nonlinear stretching sheet

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 59, С. 104470 - 104470

Опубликована: Май 3, 2024

The current study examines the complex interaction between mass and thermal energy variations, considering factors including activation energy, chemical reactions, radiation across a nonlinear stretching sheet. ternary nanofluid comprises titanium, single-walled carbon nanotubes, multi-walled nanotubes to improve heat transfer characteristics of fluidic system. Partial differential equations are utilized represent system's dynamic behavior mathematically. Following this, similarity transformations used convert these governing partial into ordinary equations. numerical solution for transformed boundary value is derived using MATLAB. graphical representations explain results calculations, providing clear insights important variables in various conditions. It concluded that an increase flexibility parameter improves fluid, while Prandtl decreases it. Furthermore, applying magnetic field dynamics fluid heating enhances temperature transfer.

Язык: Английский

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Entropy generation in peristaltic transport of bio-convective couple stress blood nanofluid with chemotactic microorganisms involving viscous dissipation and slip effects

Alexandria Engineering Journal, Год журнала: 2024, Номер 102, С. 361 - 380

Опубликована: Июнь 8, 2024

Язык: Английский

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Investigating silver and alumina nanoparticles’ impact on fluid behavior over porous stretching surface

Nanotechnology Reviews, Год журнала: 2024, Номер 13(1)

Опубликована: Янв. 1, 2024

Abstract The parabolic trough solar collector is among the most beneficial energy production technologies. However, it has comparatively low thermal performance, which can be enhanced with innovative coolant hybrid nanofluids and transmitter tube configuration. In present investigation, water-based silver alumina nanoparticles are used to optimize heat transfer in dual-phase flow comprising magnetohydrodynamic Prandtl–Eyring dusty nanofluid under radiation by employing Levenberg–Marquardt technique back-propagated neural networks (LM-BPNN). By combining Joule heating phenomenon, viscous dissipation, source nanofluid, suggested LM-BPNNs propose enhance transfer. After obtaining dataset using a numerical method called bvp4c, artificial (LM-BPANN) algorithm employed. Benchmark datasets LM-BPANNs methodology; 80% of utilized for training 10% retained testing verification. generated LM-BPANNs’ accuracy convergence verified reliability obtained through effective fitness determined mean squared error (MSE), thorough regression analysis, suitable histogram representations data. With reduced MSE values 4.38 × 10 −9 , demonstrated exceptionally good performance great model’s predictions. result demonstrates efficacy consistent producing absolute around zero. main conclusions this study should have big impact on industries that use transmission, such as oil recovery, fluidic cells, collectors, other related fields.

Язык: Английский

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Linear stability analysis of nanofluid flow over static or moving wedge using the collocation spectral method

Journal of Engineering Research, Год журнала: 2024, Номер 12(1), С. 281 - 288

Опубликована: Фев. 8, 2024

The major goal of the present contribution is to fully examine linear stability analysis two-dimensional nanofluid flow over a moving as well static wedge under impact an adverse or favorable pressure gradient. Using similarity variables, velocity profiles for mean are obtained by converting equations into nonlinear ODE that numerically solved using fourth-order Runge-Kutta method. nanofluids spectral Chebyshev collocation technique. Numerous numerical simulations performed understand and influence various parameters such concentration selected nanoparticle, velocity, gradient, types nanofluid. outcomes indicate critical dimensionless value Reynolds number instability decreases significantly with increasing in same direction fluid motion, nanoparticles, when adverse, which makes more stable. On contrary, becomes unstable moves against flow's instance pressure.

Язык: Английский

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Analytical solution to boundary layer flow and convective heat transfer for low Prandtl number fluids under the magnetic field effect over a flat plate

Heat Transfer, Год журнала: 2024, Номер 53(6), С. 3054 - 3071

Опубликована: Май 7, 2024

Abstract The present study aims to quantify the flow field, velocity, and heat transfer features over a horizontal flat plate under influence of an applied magnetic with particular emphasis on low Prandtl number fluids. Nonlinear partial differential expressions can be incorporated into ordinary framework use appropriate transformations. This research utilizes variational iteration method (VIM) approximate solutions for system nonlinear equations that define problem. objective is demonstrate superior flexibility broader application VIM in addressing issues, compared alternative approaches. results obtained from are numerical solutions, revealing significant level accuracy approximation. findings strongly suggest effective providing precise equations. analysis includes examination temperature distribution across various parameters. found improving patterns, velocity distribution, dynamics were all positively impacted by increasing numbers. As result, this leads thickness boundary layer decrease improves at moving surface. Thus, convection process becomes more efficient. When strength field increased, fluid decreases. observation aligns expectations since hampers natural convection. Notably, precisely controlled carefully applying force.

Язык: Английский

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Contribution of hall and ion slip effects with generalized mass and heat fluxes with entropy analysis on three-dimensional Prandtl model

Alexandria Engineering Journal, Год журнала: 2024, Номер 108, С. 244 - 260

Опубликована: Июль 30, 2024

Язык: Английский

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Thermal enhancement in magnetized flow of ZnO−SAE50 nanolubricant over a rotating sphere influenced by nonlinear heat generation and thermal radiation

Case Studies in Thermal Engineering, Год журнала: 2023, Номер 53, С. 103881 - 103881

Опубликована: Дек. 15, 2023

The nanolubricant ZnO−SAE50 is essentially used in a range of industries, including electronics, renewable energy, automotive, and aerospace. Due to its distinct thermal lubricating characteristics, it can serve variety purposes has the potential revolutionize number technological fields. prime motive this study introduce as flow fluid around rotating sphere immersed Darcy-Forchheimer medium. To control direct desired direction, an external magnetic field employed. performance assessed considering effects radiation, nonlinear heat generation Joule heating. A MATLAB's built-in solver bvp-4c solve achieved model numerically. findings disclose that implementation quite advantageous adjusting directing flow. In order achieve excellent performance, role radiations pivotal. Furthermore, maximizes transmission while conventional SAE50 ineffective achieving optimum transfer rates.

Язык: Английский

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