Optimal treatment of stratified Carreau and Casson nanofluids flows in Darcy-Forchheimer porous space over porous matrix

Kumar, Rakesh; Shehzad, Sabir Ali; Chamkha, Ali J.

doi:10.1007/s10483-020-2655-7

Cited by 15 publications

(5 citation statements)

References 41 publications

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“…The benefit of OHAM is that it establishes its convergence criteria similar to HAM but more pliable. R. Kumar (43) provide the three-dimensional (3D) analysis for Cassonnanofluid and Carreau-nanofluid flows due to a flat body in a magneto hydrodynamic (MHD). Nawaz et al (44) use the Optimal Homotopy Asymptotic Method for solution of a coupled system of nonlinear partial differential equations.…”

Section: Governing Equationmentioning

confidence: 99%

Modeling the thermo physical behavior of metallic porous fin on varying convective loads

Mustahsan¹,

Younas²,

Salamat³

et al. 2021

IJST

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Background/ Objectives: Porous-permeable structured fins are the principal operational mechanism for enhancing the percentage of heat evolved and dissipated because of their many thermo physical characteristics. Study of thermal gradients on the basis of convective loads in porous fins is important in many engineering fields. Methods: In the present fractional investigation, well-established optimal homotopy asymptotic method (OHAM) has been applied on thermal system expressed in nonlinear fractional order of ordinary differential equations for Darcy's approach for porous-structured fin. Here parameters related to porosity, permeability and convection have been deliberated. In order to study the thermal solicitations, the thermal analysis with insulated tip of copper based alloy is studied. Findings: It is found that porosity of system is influencing more than other factors. Novelty: This study demonstrates the efficiency of OHAM as well.

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Section: Governing Equationmentioning

confidence: 99%

Modeling the thermo physical behavior of metallic porous fin on varying convective loads

Mustahsan¹,

Younas²,

Salamat³

et al. 2021

IJST

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“…We find numerous different models for nanofluid flow over a stretching sheet in the literature as presented in Refs. [9][10][11][12][13][14][15][16]. A more comprehensive list of articles on the applications of nanofluid flow problem can be found in Refs.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of graphene–PDMS Maxwell nanofluid flow over a stretching surface: A study on the efficient energy management^†

2023

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This study investigates the unsteady Maxwell nanofluid flow past a stretching surface, embedded in a porous medium, in the presence of magnetic field and thermal radiation effects. Polydimethylsiloxane (PDMS) is considered as a Maxwell base fluid and graphene is taken as nanoparticle to form the nanofluid. It is a well‐reported fact in the literature (Boland et al. Science, 354(2016)1257) that viscous graphene polymers can be used to make sensitive electromechanical sensors, thereby setting the direction and incentive for the study of graphene–PDMS nanofluid. In this paper, we have implemented the Navier's slip boundary condition at the nanofluid‐surface interface. Entropy analysis for the energy efficiency of the system in terms of the Bejan number is carried out extensively. By employing suitable similarity transformations, the set of partial differential equations has been transformed into a set of ordinary differential equations. The transformed equations are solved by the homotopy analysis method (HAM). The nanofluid velocity, temperature, skin‐friction coefficient, and heat transfer rate are analyzed in this paper under several regulatory physical parameters. The findings show that the rise in time relaxation parameter has adverse effects on nanofluid velocity but enhances the entropy generation in the system. The heat transfer rate decreases with an enhancement of the Deborah number but increases with a rise in the nanoparticle volume fraction. The Bejan number shows increasing trend with an enhancement of unsteady parameter, nanoparticle volume fraction, and porous permeability parameter. This study bears the potential application in powder technology, plastic extrusion process, as well as in bio‐engineering.

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“…In a homogenous mixture, a concentration gradient could be observed when the mixture is under the temperature gradient, known as Soret effect or thermodiffusion [1]. As a common phenomenon, it was reported in many essential systems, such as oil reservoirs [2], chemical and biological systems [3][4][5], micro-and nanofluids [6][7][8][9], alloys [10,11] and ionic liquids [12,13]. Thus, many methods were proposed to describe the phenomenon, including theoretical, experimental, and simulated ways, which are summarized in [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Study of the pressure effect on the thermodiffusion behavior in multicomponent n-alkane mixtures by using non-equilibrium molecular dynamics

Chen¹,

Liu²,

Liang³

et al. 2022

Phys. Scr.

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The influence of high pressure on the Soret effect of multicomponent n-alkanes mixtures was investigated with the non-equilibrium molecular dynamics method to provide simulation support to the SJ10/SCCO experiments. In this work, n-pentane/n-heptane/n-decane ternary mixtures and methane/n-pentane/n-heptane/n-decane quaternary mixtures were built and simulated under the same situations as the space experiments. TraPPE-UA force field and eHEX algorithm were employed in Soret effect simulations, and three different amounts of heat (ΔQ) were applied in each mixture. The simulated thermodiffusion ratios (kT) were compared with the data from other literature. In ternary mixtures, the kT values were influenced by the pressure, but the migration directions and separation relationship of the components did not change. While in quaternary mixtures, the strong and weak separation relationships of the two lowest separated components changed. The results demonstrated that the high pressure weakens the Soret effect in multicomponent n-alkane mixtures to an extent and may affect more in the mixture composed of more components.

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Optimal treatment of stratified Carreau and Casson nanofluids flows in Darcy-Forchheimer porous space over porous matrix

Cited by 15 publications

References 41 publications

Modeling the thermo physical behavior of metallic porous fin on varying convective loads

Modeling the thermo physical behavior of metallic porous fin on varying convective loads

Mathematical modeling of graphene–PDMS Maxwell nanofluid flow over a stretching surface: A study on the efficient energy management^†

Study of the pressure effect on the thermodiffusion behavior in multicomponent n-alkane mixtures by using non-equilibrium molecular dynamics

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Optimal treatment of stratified Carreau and Casson nanofluids flows in Darcy-Forchheimer porous space over porous matrix

Cited by 15 publications

References 41 publications

Modeling the thermo physical behavior of metallic porous fin on varying convective loads

Modeling the thermo physical behavior of metallic porous fin on varying convective loads

Mathematical modeling of graphene–PDMS Maxwell nanofluid flow over a stretching surface: A study on the efficient energy management†

Study of the pressure effect on the thermodiffusion behavior in multicomponent n-alkane mixtures by using non-equilibrium molecular dynamics

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Resources

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Mathematical modeling of graphene–PDMS Maxwell nanofluid flow over a stretching surface: A study on the efficient energy management^†