Flow and heat transfer of a second-grade hybrid nanofluid over a permeable stretching/shrinking sheet

Roy, Nepal Chandra; Pop, Ioan

doi:10.1140/epjp/s13360-020-00788-9

Cited by 34 publications

(15 citation statements)

References 40 publications

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“…Waini et al [16] also reported that the presence of a huge volume fraction of copper intensifies the skin friction coefficient and the local Nusselt number. Many other recent interesting investigations towards hybrid nanofluid, focusing on alumina and copper as the hybrid nanoparticles, with various configurations of parameters, have also been revealed by Yashkun et al [17], Lund et al [18,19], Aladdin et al [20], Roşca et al [21], Khashi'ie et al [22][23][24][25], Roy and Pop [26], Zainal et al [27], Anuar et al [28], Gangadhar et al [29] and Wahid et al [30].…”

Section: Introductionmentioning

confidence: 88%

Hybrid Nanofluid Slip Flow over an Exponentially Stretching/Shrinking Permeable Sheet with Heat Generation

et al. 2020

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An investigation has been done on the hybrid nanofluid slip flow in the existence of heat generation over an exponentially stretching/shrinking permeable sheet. Hybridization of alumina and copper with water as the base fluid is considered. The mathematical model is simplified through the similarity transformation. A numerical solver named bvp4c in Matlab software is utilized to facilitate the problem-solving process and dual solutions are attained. The influences of several pertinent parameters on the main physical quantities of interest and the profiles are scrutinized and presented in the form of graphs. Through the stability analysis, only the first solution is considered as the physical solution. As such, the findings conclude that the upsurges of volume fraction on the copper nanoparticle could enhance the skin friction coefficient and the local Nusselt number.

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Section: Introductionmentioning

confidence: 88%

Hybrid Nanofluid Slip Flow over an Exponentially Stretching/Shrinking Permeable Sheet with Heat Generation

et al. 2020

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“…Waini et al (2019aWaini et al ( , 2019bWaini et al ( , 2020) also reported that the presence of a huge volume fraction of copper intensifies the skin friction coefficient and the local Nusselt number. Many other recent interesting investigations toward hybrid nanofluid, focusing on alumina and copper as the hybrid nanoparticles, with various configurations of parameters, have also been revealed by Khashi'ie et al (2020aKhashi'ie et al ( , 2020bKhashi'ie et al ( , 2020cKhashi'ie et al ( , 2020d, Roy and Pop (2020), Zainal et al (2020), Ros ca et al (2020. Valuable information on nanofluids can be also found in the review papers by Huminic and Huminic (2018), Sarkar et al (2015), Akilu et al (2016), Sidik et al (2016), Sundar et al (2017), etc. Therefore, in this present study, we intended to scrutinize the mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effect.…”

Section: Introductionmentioning

confidence: 91%

Mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effect

Roşca

Pop

2021

HFF

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Purpose The purpose of this paper is to numerically study the problem of mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effect. Design/methodology/approach The governing nonlinear partial differential equations are transformed into a system of ordinary differential equations by a similarity transformation, which is then solved numerically through the function bvp4c from MATLAB for different values of the governing parameters. The solutions contain a mixed convection parameter λ that has a considerable impact on the flow fields. Findings It is found that the solutions of the ordinary (similarity) differential equations have two branches, upper and lower branch solutions, in a certain range of the mixed convection and several other parameters. To establish which of these solutions are stable and which are not, a stability analysis has been performed. The effects of the governing parameters on the fluid flow and heat transfer characteristics are illustrated in tables and figures. It is found that dual (upper and lower branch) solutions exist for both the cases of assisting and opposing flow situations. A stability analysis has also been conducted to determine the physical meaning and stability of the dual solutions. Practical implications This theoretical study is significantly relevant to the applications of the heat exchangers placed in a low-velocity environment and electronic devices cooled by fans. Originality/value The case of mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effects has not been studied before, and hence all generated numerical results are claimed to be original and novel.

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“…Sreedevi et al [ 7 ] perceived a numerical study for gyrotactic microorganism’s past over a swirling cylinder and examined that microorganism density is raised for Weissenberg number. In addition, Roy et al [ 8 ] inspected the second-grade nanoliquid flow across an extending surface along with heat propagation. They reported that the heat flux is condensed but wall shear stress is improved through the variation of velocity ratio parameter.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer analysis of the mixed convective flow of magnetohydrodynamic hybrid nanofluid past a stretching sheet with velocity and thermal slip conditions

et al. 2021

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The present study is related to the analytical investigation of the magnetohydrodynamic flow of Ag − MgO/ water hybrid nanoliquid with slip conditions via an extending surface. The thermal radiation and Joule heating effects are incorporated within the existing hybrid nanofluid model. The system of higher-order partial differential equations is converted to the nonlinear system of ordinary differential equations by interpreting the similarity transformations. With the implementation of a strong analytical method called HAM, the solution of resulting higher-order ordinary differential equations is obtained. The results of the skin friction coefficient, Nusselt number, velocity profile, and temperature profile of the hybrid nanofluid for varying different flow parameters are attained in the form of graphs and tables. Some important outcomes showed that the Nusselt number and skin friction are increased with the enhancement in Eckert number, stretching parameter, heat generation parameter and radiation parameter for both slip and no-slip conditions. The thermal profile of the hybrid nanofluid is higher for suction effect but lower for Eckert number, stretching parameter, magnetic field, heat generation and radiation parameter. For both slip and no-slip conditions, the hybrid nanofluid velocity shows an upward trend for both the stretching and mixed convection parameters.

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Flow and heat transfer of a second-grade hybrid nanofluid over a permeable stretching/shrinking sheet

Cited by 34 publications

References 40 publications

Hybrid Nanofluid Slip Flow over an Exponentially Stretching/Shrinking Permeable Sheet with Heat Generation

Hybrid Nanofluid Slip Flow over an Exponentially Stretching/Shrinking Permeable Sheet with Heat Generation

Mixed convection flow of a hybrid nanofluid past a vertical wedge with thermal radiation effect

Heat transfer analysis of the mixed convective flow of magnetohydrodynamic hybrid nanofluid past a stretching sheet with velocity and thermal slip conditions

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