Impact of heat source on combined convection flow inside wavy-walled cavity filled with nanofluids via heatline concept

Azizul, Fatin M.; Alsabery, Ammar I.; Hashim, Ishak; Chamkha, Ali J.

doi:10.1016/j.amc.2020.125754

Cited by 18 publications

(11 citation statements)

References 35 publications

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“…To this end, relevant parameters such as power law exponent m, variable viscosity c 2 , heat capacity c 4 , mass diffusivity c 6 , species diffusivity Table 1 compares the coefficients of f (0), θ (0) and φ (0) to those recorded by Alsenafi et al [40] and Zaimi et al [41]. The comparative analysis was conducted by ignoring the occurrence of gyrotactic microbes (by eliminating Equation ( 18) and assigning V 0 = 0 and λ = 1 in the boundary constraints (19)). Tables 2-5 illustrate the implications of varied parameters on the skin friction factor, Nusselt number, Sherwood quantity, and motile density quantity, in that sequence.…”

Section: Analysis Of Resultsmentioning

confidence: 99%

An Analysis for Variable Physical Properties Involved in the Nano-Biofilm Transportation of Sutterby Fluid across Shrinking/Stretching Surface

et al. 2022

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In this article, we explore how activation energy and varied transit parameters influence the two-dimensional stagnation point motion of nano-biofilm of Sutterby fluids incorporating gyrotactic microbes across a porous straining/shrinking sheet. Prior investigations implied that fluid viscosity as well as thermal conductance are temperature based. This research proposes that fluid viscosity, heat capacity and nanofluid attributes are all modified by solute concentration. According to some empirical research, the viscosity as well as heat conductivity of nanoparticles are highly based on the concentration of nanoparticles instead of only the temperature. The shooting approach with the RK-4 technique is applied to acquire analytical results. We contrast our outcomes with those in the existing research and examine their consistency and reliability. The graphic performance of relevant factors on heat, velocity, density and motile concentration domains are depicted and discussed. The skin friction factor, Nusselt number, Sherwood number and the motile density are determined. As the concentration-dependent properties are updated, the speed, temperature, concentration and motile density profiles are enhanced, but for all concentration-varying factors, other physical quantities deteriorate.

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Section: Analysis Of Resultsmentioning

confidence: 99%

An Analysis for Variable Physical Properties Involved in the Nano-Biofilm Transportation of Sutterby Fluid across Shrinking/Stretching Surface

et al. 2022

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“…Numerous researchers have paid attention to the lid driven square shape enclosure, both from theoretical and engineering viewpoints. Azizul et al [1] explored the influence on mixed convection in a wavy frame filled with nanofluids via a heat line idea. The demographic results confirm that the Richardson number larger values and Reynolds number improve heat exchange rate.…”

Section: Introductionmentioning

confidence: 99%

Influence of Fin Length on Magneto-Combined Convection Heat Transfer Performance in a Lid-Driven Wavy Cavity

et al. 2021

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In the existent study, combined magneto-convection heat exchange in a driven enclosure having vertical fin was analyzed numerically. The finite element system-based GWR procedure was utilized to determine the flow model’s governing equations. A parametric inquiry was executed to review the influence of Richardson and Hartmann numbers on flow shape and heat removal features inside a frame. The problem’s resulting numerical outcomes were demonstrated graphically in terms of isotherms, streamlines, velocity sketches, local Nusselt number, global Nusselt number, and global fluid temperature. It was found that the varying lengths of the fin surface have a substantial impact on flow building and heat line sketch. Further, it was also noticed that a relatively fin length is needed to increase the heat exchange rate on the right cool wall at a high Richardson number. The fin can significantly enhance heat removal performance rate from an enclosure to adjacent fluid.

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“…In order to increase the heat transfer capability, the authors found that adding nanoparticles to the working fluid can achieve that goal [18][19][20][21][22]. Mahalakshmi et al [23] studied free convection in a rectangular enclosure filled with nanofluid and contains two heat sources positioned at the bottom wall as well as the center of the cavity.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of MHD Natural Convection in Trapezoidal Enclosure Filled With (50%MgO-50%Ag/Water) Hybrid Nanofluid: Heated Sinusoidal from Below

Alomari¹,

Al‐Farhany²,

Hashem³

et al. 2021

IJHT

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Numerical simulation of MHD free convection in a two-dimensional trapezoidal cavity of a hybrid nanofluid has been carried out in this research. The cavity is heated sinusoidal from the bottom wall, and the inclined walls are cooled while the top wall is isolated. The hybrid nanofluid (MgO-Ag/water) has been used as a working fluid. The numerical simulation has been validated with past papers and met a good agreement. The considered parameters are a range of Rayleigh number (Ra= 103 to 106), Hartmann number (Ha= 0 to 60) and volume fraction (f= 0 to 0.02). The results are presented as isotherms, stream functions, local and average Nusselt numbers, from which it is observed that the strength of the stream functions and isotherms increases with the increase of the Ra and ϕ while the increase in Hartmann number reduce the circulation of the flow and increases the isotherms strength. Also, the Nusselt number is increases with Ra and ϕ while it decreases with Ha.

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Impact of heat source on combined convection flow inside wavy-walled cavity filled with nanofluids via heatline concept

Cited by 18 publications

References 35 publications

An Analysis for Variable Physical Properties Involved in the Nano-Biofilm Transportation of Sutterby Fluid across Shrinking/Stretching Surface

An Analysis for Variable Physical Properties Involved in the Nano-Biofilm Transportation of Sutterby Fluid across Shrinking/Stretching Surface

Influence of Fin Length on Magneto-Combined Convection Heat Transfer Performance in a Lid-Driven Wavy Cavity

Numerical Study of MHD Natural Convection in Trapezoidal Enclosure Filled With (50%MgO-50%Ag/Water) Hybrid Nanofluid: Heated Sinusoidal from Below

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