Numerical simulations of MHD mixed convection of hybrid nanofluid flow in a horizontal channel with cavity: Impact on heat transfer and hydrodynamic forces

Qureshi, Muhammad Amer; Hussain, Shafqat; Sadiq, Muhammad

doi:10.1016/j.csite.2021.101321

Cited by 49 publications

(16 citation statements)

References 42 publications

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“…in the momentum equation (16). Therefore, an increase in the Darcy number increases the permeability K * of the porous medium, which leads to an acceleration in the fluid flow in the vertical direction.…”

Section: Velocity Profilesmentioning

confidence: 99%

“…11 Recently, a few research articles regarding a hybrid nanofluid flow under the impact of various fields have been published. [12][13][14][15][16][17] The second-grade fluid model is the most common fluid model that shows non-Newtonian behavior. This fluid model plays a dynamic role in numerous chemical engineering domains and is also of interest in other non-Newtonian fluid models.…”

Section: Introductionmentioning

confidence: 99%

“…The magnetic effect on the flow of a hybrid nanoliquid with a water–ethylene glycol (WEG) base fluid has been examined by Mahanthesh 11 . Recently, a few research articles regarding a hybrid nanofluid flow under the impact of various fields have been published 12–17 …”

Section: Introductionmentioning

confidence: 99%

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Thermal magneto‐convection of GO‐MoS2 ${\text{MoS}}_{2}$/WEG within a heated channel retaining an aura of inclined magnetic force along with Hall currents

Das

Mahato

Ali³

et al. 2022

Heat Trans

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Thermal and rheological characteristics of nanomaterials under electromagnetic force are of considerable interest in engineering, mining, biomechanics, and so on. Inspired by the worldwide applications of novel functional nanomaterials, this communication aims to shed light on the thermal gravitational magneto-convection of a non-Newtonian hybrid nanoliquid (Graphene oxide [GO]-molybdenum disulfide [MoS 2 ]/water-ethylene glycol [WEG]) inside a confined channel. GO and MoS 2 are dispersed into a WEG mixture (50%-50%). The physical effects of Hall currents, porous resistance, and thermal radiation are included in the flow system. An analytical approach is chosen to resolve the nondimensional momentum and energy with associated wall conditions. The stipulated graphs and tables are designed to extract and illustrate the effects of critical physical parameters on several dynamical functions or variables. The results obtained reveal that durable acceleration is induced in the fluid motion along the vertical direction with an increase in the Hall parameter, whereas it dampens the magnitude of the fluid velocity in the cross-flow

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Section: Velocity Profilesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal magneto‐convection of GO‐MoS2 ${\text{MoS}}_{2}$/WEG within a heated channel retaining an aura of inclined magnetic force along with Hall currents

Das

Mahato

Ali³

et al. 2022

Heat Trans

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“…The obtained results show that the air temperature increases with the increase of Rayleigh number, and surface radiation greatly affects the flow in the cavity. Amer Qureshi et al 9 simulated heat transfer and fluid flow characteristics in a perforated horizontal channel containing a barrier containing hybrid nanofluid. The results showed that increasing the value of the obstacle radius increases the amount of heat transfer within the channel.…”

Section: Introductionmentioning

confidence: 99%

Optimization of wavy trapezoidal porous cavity containing mixture hybrid nanofluid (water/ethylene glycol Go–Al2O3) by response surface method

Alipour

Jafari

Hosseinzadeh

2023

Sci Rep

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Increasing thermal performance and preventing heat loss are very important in energy conversion systems, especially for new and complex products that exacerbate this need. Therefore, to solve this challenge, a trapezoidal cavity with a wavy top wall containing water/ethylene glycol GO–Al2O3 nanofluid is simulated using Galerkin finite element method. The effects of physical parameters affecting thermal performance and fluid flow, including porosity (ℇ), thermal radiation (Rd), magnetic field angle (α), Rayleigh number (Ra) and Hartmann number (Ha), are investigated in the determined ratios. The results of applied boundary conditions showed that the optimal values for Ra, Ha, ℇ, Rd and α are 1214.46, 2.86, 0.63, 0.24 and 59.35, respectively. Considering that changes in radiation have little effect on streamlines and isothermal lines. Optimization by RSM and Taguchi integration resulted in optimal Nu detection. It provided a correlation for the average Nu based on the investigated determinants due to the conflicting influence of the study factors, which finally calculated the highest average Nusselt number of 3.07. Therefore, the ideal design, which is the primary goal of this research, increases the thermal performance.

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“…Another problem associated with nanofluids is the sedimentation caused by a deficient mixing of the nanoparticles, which may generate agglomerates that could end up blocking the channels [12]. Recent studies show numerical simulations and analyses of the impact of employing hybrid nanofluids generated from mixtures of two different nanoparticles on heat transfer and hydrodynamics [13,14].…”

Section: Introductionmentioning

confidence: 99%

Design of Novel Cooling Systems Based on Metal Plates with Channels of Shapes Inspired by Nature

et al. 2022

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The effect of the channel shape of aluminum plates on cooling capacity was evaluated by studying different configurations. Common shapes of the channel, such as square and fork shapes, were compared with novel configurations inspired by shapes found in nature, specifically the shape of the outline of flowers, inspired these new configurations, consisting of channels with crateriform, salverform, and cruciform shapes. The aim of the study is to evaluate the effect of the channel shape on the cooling capacity of the metal plate. To that end, all the configurations were analyzed from a geometrical point of view, determining the minimum distance of each point across the plate to the channel. A finite difference method was implemented to study both transient and steady state heat dissipation across the plates for each configuration. Even though the effect of the channel shape on the average temperature of the plate is slight, the maximum temperature, the size and location of hot spots, and the temperature homogeneity of the plate are strongly affected by the shape of the channel through which the cooling fluid is circulated. A reduction in the maximum temperature of the plate during transient cooling of around 2 °C for the crateriform and salverform channels and approximately 4.5 °C for the cruciform channel can be attained, compared to the standard configurations. The steady state heat dissipation analysis concluded that the crateriform and salverform configurations reduced the maximum variation in temperature of the common configurations by roughly 15%, whereas a reduction of approximately 28% could be reached by the cruciform configuration. Regarding the homogeneity of temperature across the plate, a reduction up to 34.5% of the index of uniform temperature can be attained using the novel configurations during the steady state refrigeration of the plate. The cruciform channel is the optimal configuration for both transient and steady state cooling processes, reducing the size and temperature of hot spots and improving the temperature homogeneity of the plate, a result already anticipated by the geometrical analysis. In fact, the main conclusions attained from the cooling study are in good agreement with the results of the geometrical analysis. Therefore, the geometrical analysis was found to be a simple and reliable method to design the shape of channels of a cooling system.

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Numerical simulations of MHD mixed convection of hybrid nanofluid flow in a horizontal channel with cavity: Impact on heat transfer and hydrodynamic forces

Cited by 49 publications

References 42 publications

Thermal magneto‐convection of GO‐MoS2 ${\text{MoS}}_{2}$/WEG within a heated channel retaining an aura of inclined magnetic force along with Hall currents

Thermal magneto‐convection of GO‐MoS2 ${\text{MoS}}_{2}$/WEG within a heated channel retaining an aura of inclined magnetic force along with Hall currents

Optimization of wavy trapezoidal porous cavity containing mixture hybrid nanofluid (water/ethylene glycol Go–Al2O3) by response surface method

Design of Novel Cooling Systems Based on Metal Plates with Channels of Shapes Inspired by Nature

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