Entropy generation analysis and heatline visualization of free convection in nanofluid (KKL model-based)-filled cavity including internal active fins using lattice Boltzmann method

Rahimi, Alireza; Sepehr, Mohammad Noori; Lariche, Milad Janghorban; Kasaeipoor, Abbas; Malekshah, Emad Hasani; Kolsi, Lioua

doi:10.1016/j.camwa.2017.12.008

Cited by 46 publications

(21 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The position and size of the partial active walls were found to significantly influence the flow, temperature field, and heat transfer. Other interesting papers in the field exist in the literature Rahimi et al (2018a;2018c), Al-Rashed et al (2017), Al-Sayegh (2018), Kasaeipoor et al (2017), Rostami et al (2020), Safaei et al (2018), Akbari et al (2016), Yousefzadeh et al (2020), Pordanjani et al (2019), Oztop and Abu-Nada (2008), Bondareva et al (2017), Selimefendigil et al (2016), and Kolsi et al (2017a;2017b).…”

Section: Introductionmentioning

confidence: 99%

Control of the free convective heat transfer using a U-shaped obstacle in an Al2O3-water nanofluid filled cubic cavity

Al-Sayagh¹

2021

Int. j. adv. appl. sci.

View full text Add to dashboard Cite

This paper deals with the study of free convection in a 3D enclosure filled with Al2O3-nanofluid and equipped with a U-shaped obstacle. The used U-shaped obstacle is considered perfectly conductive. The effect of the dimension and the orientation of the obstacle is investigated. In addition, the parameters governing the problem are varied as Rayleigh number (103 to 106), and nanoparticles volume fraction (0 to 7.5%). Results are depicted in terms of flow structures, temperature fields, and Nusselt number. Results show that the obstacle dimension and orientation can control the flow and optimize the heat transfer and the addition of nanoparticles enhances significantly Nusselt number.

show abstract

Section: Introductionmentioning

confidence: 99%

Control of the free convective heat transfer using a U-shaped obstacle in an Al2O3-water nanofluid filled cubic cavity

Al-Sayagh¹

2021

Int. j. adv. appl. sci.

View full text Add to dashboard Cite

show abstract

“…Rahimi et al [18] considered thermal aspects of entropy process in (water-CuO) nanofluid inside enclosure furnished with fins and estimated decreases in generated entropy against fractional volume of nanoparticles. Rashidi et al [19] conducted detailed comparative analysis for entropy in symmetrical heat exchanger. Some recently significant disquisitions on entropy process have been carried out in [20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Simulations for Entropy Generation Measurement in Single Phase Flow of Water Based Nanofluid Filled in Square Cavity under Appliance of Inclined Magnetic field

Bilal¹

2021

Preprint

View full text Add to dashboard Cite

Current communication candidly explicates entropy generation process generated due to natural convective heating in square enclosure saturated with nanofluid. Water is used as base fluid and Cu particles are induced to depict enhancement in thermo physical characteristics. Natural convection in enclosure is produced by providing temperature difference on boundaries. Upper wall is provided uniform temperature while rest of walls are kept cold. Impermeability and non-slip conditions are imposed on all walls. Mathematical structuring of considered problem is manifested via continuity, momentum and energy equations under appliance of inclined magnetic field. Thermo physical properties of nanoparticles along with base liquids are used during mathematical structuring. Finite element procedure is adopted to elucidate flow features. Discretization of domain is done by applying hybrid meshing. Velocity and isothermal plots are drawn against concerning parameters. Comprehensive description of energy generation by measuring variation in magnetic, viscous, total and thermal irreversibility’s are also presented. Cut lines representing velocity field in horizontal and vertical direction are also drawn to predict flow behavior at different locations.

show abstract

“…The S gen increases with Ra and decreases when ϕ increases. Moreover, Rahimi et al 17 performed a numerical study of natural convection heat transfer and the entropy generation of water‐CuO nanofluid inside a square cavity equipped with fins. Authors found that as the Ra and ϕ increase, the Nu average increases.…”

Section: Introductionmentioning

confidence: 99%

MHD conjugate heat transfer and entropy generation analysis of MWCNT/water nanofluid in a partially heated divided medium

et al. 2020

View full text Add to dashboard Cite

The aim of this article is to conduct the lattice Boltzmann simulation of the magnetohydrodynamic (MHD) natural conjugate heat transfer in an apportioned cavity loaded with a multiwalled carbon nanotube/water nanofluid. The divided cavity is, to some extent, heated and cooled at the upright walls, whereas the horizontal walls are adiabatic. The nanofluid properties are evaluated on the basis of experimental correlations. The parameters ranges in the study are as follows: nanoparticles' volume fraction (%): 0 ≤ ϕ ≤ 0.5, temperature (°C): T = 27, Rayleigh number (Ra): 10 3 ≤ Ra ≤ 10 5 , Hartmann number (Ha): 0 ≤ Ha ≤ 90, and the magnetic field inclination angle (γ): 0 ≤ γ ≤ π/2. The current outcomes are observed to be in great concurrence with the numerical results introduced in the literature. The impacts of the aforesaid parameters on local and average heat transfer, entropy generation, and Bejan number (Be) are explored and discussed. Indeed, the transfer of heat increases linearly with ϕ for a low Ra. As Ra increases, the average Nusselt number decreases for a high value of ϕ. The increase of nanoparticles' volume fraction leads to a reduction in the entropy generation and an increase in the Bejan number for a high Ra, but at low Ra, these functions remain

show abstract

Entropy generation analysis and heatline visualization of free convection in nanofluid (KKL model-based)-filled cavity including internal active fins using lattice Boltzmann method

Cited by 46 publications

References 45 publications

Control of the free convective heat transfer using a U-shaped obstacle in an Al2O3-water nanofluid filled cubic cavity

Control of the free convective heat transfer using a U-shaped obstacle in an Al2O3-water nanofluid filled cubic cavity

Finite Element Simulations for Entropy Generation Measurement in Single Phase Flow of Water Based Nanofluid Filled in Square Cavity under Appliance of Inclined Magnetic field

MHD conjugate heat transfer and entropy generation analysis of MWCNT/water nanofluid in a partially heated divided medium

Contact Info

Product

Resources

About