Dual solutions for MHD flow of a water-based TiO2-Cu hybrid nanofluid over a continuously moving thin needle in presence of thermal radiation

Mousavi, Seyed Mehdi; Rostami, Mohammadreza Nademi; Yousefi, Mohammad; Dinarvand, Saeed

doi:10.31181/rme200102031m

Cited by 19 publications

(14 citation statements)

References 18 publications

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“…Effective thermophysical models of the hybrid nanofluid 5,12,14,23,25 An important note in Figure 2 is that we used the Esfahani et al 23 model for effective thermal conductivity which is only valid for the ZnO-Ag/water hybrid nanofluid. It is a function of volume fraction and temperature and we assumed here that the temperature is kept constant at 298 K. Furthermore, Figure 3 briefly presents the mass-based algorithm for the hybrid nanofluids.…”

Section: Off-centered Stagnation Point Flow: Problem Schematic and Fo...mentioning

confidence: 99%

“…Effective thermophysical models of the hybrid nanofluid 5,12,14,23,25 [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Off‐centered Stagnation Point Flow: Problem Schematic and Fo...mentioning

confidence: 99%

“…Introducing the mass‐based algorithm 12,14,25–27 [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Off‐centered Stagnation Point Flow: Problem Schematic and Fo...mentioning

confidence: 99%

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Zinc oxide–silver/water hybrid nanofluid flow toward an off‐centered rotating disk using temperature‐dependent experimental‐based thermal conductivity

et al. 2022

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Herein, the off‐centered stagnation flow and heat transfer of zinc oxide–silver/water hybrid nanofluid over a rotating disk according to the mass‐based algorithm is studied. It is assumed that the nanoparticles have a spherical shape. Also, the velocity slip between the base fluid and nanoparticles is negligible. The Prandtl number is kept constant at 6.2. In addition, it has been used an experimental relation for effective thermal conductivity which is a function of volume fraction and temperature. The governing partial differential equations are converted to dimensionless ordinary differential equation (ODE)s by the similarity transformation method. The simplified ODEs are solved numerically by the bvp4c function from MATLAB which is an efficient and reliable code according to the three‐stage Lobatto IIIa formula. The influence of rotational parameters and both nanoparticles masses on the profiles and quantities of engineering interest are presented and discussed in detail. It is shown that the flow becomes complicated when there is a distance between the flow axis and the disk axis. Under determined conditions for a hybrid nanofluid with 30‐g mass for both nanoparticles and 100‐g mass for pure water, adding 30 g of the second nanoparticle's mass into the base fluid leads to enhance all hydrodynamic quantities of engineering interest by about 4.3%, while dispersing 30 g of the first nanoparticle's mass inside water results in decreasing the similarity temperature gradient at the surface about 3.6%. Also, when the disk rotates faster, the maximum radial velocity near the disk, s′(0) and f″(0) increases.

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Section: Off-centered Stagnation Point Flow: Problem Schematic and Fo...mentioning

confidence: 99%

“…Effective thermophysical models of the hybrid nanofluid 5,12,14,23,25 [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Off‐centered Stagnation Point Flow: Problem Schematic and Fo...mentioning

confidence: 99%

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Zinc oxide–silver/water hybrid nanofluid flow toward an off‐centered rotating disk using temperature‐dependent experimental‐based thermal conductivity

et al. 2022

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“…Dolon et al [47] studied the flow analyses as well as the centrifugal influence in the duct size. Mousavi et al [48] conducted nanofluid and thermal radiation through a needle to narrate the velocity ratio for the change of magnetic parameters. Bibin et al [49] used vector plot to represent the axial velocity and showed temperature contour at several axial locations.…”

Section: Validation Of the Studymentioning

confidence: 99%

Effects of Rotation on Unsteady Fluid Flow and Forced Convection in the Rotating Curved Square Duct With a Small Curvature

et al. 2022

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In recent years, the analysis of flow disposition in a curved duct (CD) has greatly attracted researchers because it is broadly used in engineering devices. In the present paper, unsteady flow characteristics of energy transfer (HT) in a rotating curved square duct (CSD) have been presented with the aid of spectral method. The key purpose of this study is to explore rotational effects and heat transfer (HT) of the duct. For this purpose, time-evolution calculation is performed over the Taylor number (-1500 ≤ Tr ≤ 1500) and other parameters are fixed; e.g., Dean number (Dn = 1000), Curvature (δ = 0.015) and Prandtl number (Pr = 7.0, for water). Firstly, time-dependent behavior is accomplished for both clockwise and anticlockwise rotations. It is found that the flow instabilities are certainly governed by the change of Tr that has been justified by sketching phase spaces (PS). To observe the flow features, velocities including axial flow (AF), secondary flow (SF) and temperature profiles are disclosed for both rotations; and it is elucidated that 2- to 6-vortex solutions are generated for physically realizable solutions. Axial flow (AF) shows that two maximum-velocity regimes are produced which induces secondary flow (SF), and, consequently, a strong bonding between the AF and SF has been built up. It is observed that as the rotation is increased, the fluid is mixed considerably which boosts HT in the fluid. Finally, an assessment between the numerical and experimental data has been given, and a good agreement is observed.

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“…As a result, researchers incorporated thermal radiation in their research work. Mousavi et al [35] focused his research to examine the significance of thermal radiation over the MHD flow of TiO 2 − Cu∕water hybrid nanoliquid toward the thin needle with dual solution and applied the bvp4c technique in MATLAB for their graphical discussion. Haider et al [36] debated the occurrence of thermally radiated activation energy on the unsteady magnetohydrodynamic flow of fluid under the stretched surface.…”

Section: Introductionmentioning

confidence: 99%

Applications of solar radiation toward the slip flow of a non‐Newtonian viscoelastic hybrid nanofluid over a rotating disk

et al. 2022

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This work explores a semi‐analytical solution of the Magnetohydrodynamics (MHD) viscoelastic water‐based hybrid nanoliquid flow containing TiO2 and CoFe2O4 nanoparticles past a rotating disk along with velocity slip condition. The impact of solar radiation is incorporated in the temperature equation. The current study consists of non‐Newtonian viscoelastic hybrid nanofluid flow problem which is comprised of momentum and temperature equations. By using suitable similarity transformations, the higher‐order nonlinear ordinary differential equations are transformed into the nonlinear ordinary differential equations and then resolved with the execution of the homotopy analysis scheme in MATHEMATICA 10.0. The behavior of the involved physical parameters on the hybrid nanoliquid radial and tangential velocities and temperature profiles are calculated in a graphical form. Also, the skin friction and Nusselt number for TiO2−CoFe2O4/${\rm{Ti}}{{\rm{O}}_2}-{\rm{CoF}}{{\rm{e}}_2}{{\rm{O}}_4}/$/water nanoliquid are described in tabular form. Some major results related to the current work are that by rising the values of the viscoelastic parameter, nanoparticle volume fraction of the titanium dioxide and cobalt oxide increases the skin friction coefficient Cgr${C_{gr}}$. The viscoelastic parameter, nanoparticles volume fraction of the cobalt oxide and magnetic parameter reduced the skin friction coefficient Cfr${C_{fr}}$ of the hybrid nanofluid. It is noted that Nusselt number is lower for both QSR=0${Q_{SR}} = 0$ and QSR>0${Q_{SR}} > 0$ cases against the absorption factor. The expansion in hybrid nanofluid temperature is examined for both QSR=0${Q_{SR}} = 0$ and QSR>0${Q_{SR}} > 0$ cases. It is obtained that the temperature and heat rate transfer of the hybrid nanofluid are dominant in the presence of solar radiation.

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Dual solutions for MHD flow of a water-based TiO2-Cu hybrid nanofluid over a continuously moving thin needle in presence of thermal radiation

Cited by 19 publications

References 18 publications

Zinc oxide–silver/water hybrid nanofluid flow toward an off‐centered rotating disk using temperature‐dependent experimental‐based thermal conductivity

Zinc oxide–silver/water hybrid nanofluid flow toward an off‐centered rotating disk using temperature‐dependent experimental‐based thermal conductivity

Effects of Rotation on Unsteady Fluid Flow and Forced Convection in the Rotating Curved Square Duct With a Small Curvature

Applications of solar radiation toward the slip flow of a non‐Newtonian viscoelastic hybrid nanofluid over a rotating disk

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