scholarly journals Homogeneous–Heterogeneous Chemical Reactions of Radiation Hybrid Nanofluid Flow on a Cylinder with Joule Heating: Nanoparticles Shape Impact

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1490
Author(s):  
Taghreed H. Alarabi ◽  
Ahmed M. Rashad ◽  
A. Mahdy
Keyword(s):  
Chemical Reactions ◽  
Joule Heating ◽  
Single Phase ◽  
Mathematical Formulation ◽  
Heterogeneous Reactions ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Opposite Behavior ◽  
Homogeneous Chemical ◽  
Heterogeneous Chemical Reactions

The current analysis aims to exhibit the nanoparticles of Al2O3 + Cu-water hybrid nanofluid flow for Darcy–Forchheimer with heterogeneous–homogeneous chemical reactions and magnetic field aspects past a stretching or shrinking cylinder with Joule heating. This paper performed not only with the hybrid nanofluid but also the shape of Al2O3 and Cu nanoparticles. The model of single-phase hybrid nanofluid due to thermophysical features is utilized for the mathematical formulation. In the present exploration equal diffusions factors for reactants and auto catalyst are instituted. The system of governing equations has been simplified by invoking the similarity transformation. The numerical computations are invoked due to the function bvp4c of Matlab, with high non-linearity. Numerical outcomes illustrated that; sphere shape nanoparticles presented dramatic performance on heat transfer of hybrid nanofluid movement; an opposite behavior is noticed with lamina shape. The local Nusselt number strengthens as the transverse curvature factor becomes larger. In addition, the homogeneous–heterogeneous reactions factors lead to weaken concentration fluctuation.

Hybrid nanofluid flow over a stretched cylinder with the impact of homogeneous–heterogeneous reactions and Cattaneo–Christov heat flux: Series solution and numerical simulation

Heat Transfer ◽  
2021 ◽  
Author(s):  
Anthonysamy John Christopher ◽  
Nanjundan Magesh ◽  
Ramanahalli Jayadevamurthy Punith Gowda ◽  
Rangaswamy Naveen Kumar ◽  
Ravikumar Shashikala Varun Kumar
Keyword(s):  
Numerical Simulation ◽  
Heat Flux ◽  
Series Solution ◽  
Heterogeneous Reactions ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
The Impact

scholarly journals Hybrid Nanofluid Flow with Homogeneous-Heterogeneous Reactions

2021 ◽  
Vol 68 (3) ◽  
pp. 3255-3269
Author(s):  
Iskandar Waini ◽  
Anuar Ishak ◽  
Ioan Pop
Keyword(s):  
Heterogeneous Reactions ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow

Single phase based study of Ag-Cu/EO Williamson hybrid nanofluid flow over a stretching surface with shape factor

2021 ◽  
Vol 96 (6) ◽  
pp. 065202
Author(s):  
Wasim Jamshed ◽  
Suriya Uma Devi ◽  
Kottakkaran Sooppy Nisar
Keyword(s):  
Shape Factor ◽  
Single Phase ◽  
Hybrid Nanofluid ◽  
Stretching Surface ◽  
Nanofluid Flow

scholarly journals Computational case study on tangent hyperbolic hybrid nanofluid flow: Single phase thermal investigation

2021 ◽  
pp. 101246
Author(s):  
Wasim Jamshed ◽  
Kottakkaran Sooppy Nisar ◽  
Siti Suzilliana Putri Mohamed Isa ◽  
Sawera Batool ◽  
Abdel-Haleem Abdel-Aty ◽  
...  
Keyword(s):  
Single Phase ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Thermal Investigation

Thermal convection in a chamber filled with a nanosuspension driven by a chemical reaction using Tiwari and Das’ model

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mikhail A. Sheremet ◽  
Teodor Grosan ◽  
Ioan Pop
Keyword(s):  
Chemical Reaction ◽  
Flow Rate ◽  
Thermal Convection ◽  
Energy Transport ◽  
Nonlinear Partial Differential Equations ◽  
Heterogeneous Reactions ◽  
Nanofluid Flow ◽  
Content Type ◽  
Nanoparticles Concentration ◽  
Homogeneous Chemical

Purpose The purpose of this paper is to study numerically the steady thermal convection in a chamber filled with a nanoliquid affected by a chemical reaction using the single-phase nanofluid approximation. Design/methodology/approach Water was considered as a host fluid while nanoparticles are aluminum oxide. Homogeneous reactions are analyzed. The nonlinear partial differential equations describing the considered problem are simulated using the finite difference technique. Findings The results of streamlines, isotherms, isoconcentrations, nanofluid flow rate, mean Nusselt and Sherwood numbers are discussed. The data demonstrate that the mean Sherwood number increases with the homogeneous reaction rate. Further, nanofluid flow rate can be increased with nanoparticles concentration for high Rayleigh numbers owing to the homogeneous chemical reaction inside the cavity. Originality/value Searching the existent references illustrates that the homogeneous-heterogeneous reactions influence on the nanoliquid motion and energy transport within enclosures has not been investigated before. The results of this paper are completely original and the numerical results of the present paper were never published by any researcher.

scholarly journals Reply to Awad, M.M. Comment on “Alam et al. Numerical Simulation of Homogeneous–Heterogeneous Reactions through a Hybrid Nanofluid Flowing over a Rotating Disc for Solar Heating Applications. Sustainability 2021, 13, 8289”

2022 ◽  
Vol 14 (1) ◽  
pp. 512
Author(s):  
Mir Waqas Alam ◽  
Syed Ghazanfar Hussain ◽  
Basma Souayeh ◽  
Muhammad Shuaib Khan ◽  
Mohd Farhan
Keyword(s):  
Numerical Simulation ◽  
Mathematical Formulation ◽  
Solar Heating ◽  
Heterogeneous Reactions ◽  
Hybrid Nanofluid ◽  
Rotating Disc

This write-up presents a closure to the comments of Awad, M.M. (2021) on the paper “Numerical Simulation of Homogeneous–Heterogeneous Reactions through a Hybrid Nanofluid Flowing over a Rotating Disc for Solar Heating Applications” (Alam et al., 2021). The authors have addressed each of the comments in detail to uphold the correctness of the mathematical formulation together with the pertinent results presented in our published article.

scholarly journals Computational Study of Chemical Reactions During Heat and Mass Transfer in in Magnetized Partially Ionized Nano-Liquid

2018 ◽  
Author(s):  
M. Nawaz ◽  
Shafia Rana
Keyword(s):  
Chemical Reactions ◽  
Chemical Reaction ◽  
Computational Study ◽  
Heterogeneous Chemical Reaction ◽  
Ion Collisions ◽  
Heterogeneous Chemical ◽  
Homogeneous Chemical ◽  
Partially Ionized ◽  
Chemically Reacting ◽  
Heterogeneous Chemical Reactions

Homogeneous and heterogeneous chemical reactions in partially ionized magneto-nano-liquid are investigated theoretically using finite element method (FEM). The effects of ions and electrons collisions on the transport of heat and mass are analyzed for both the cases of heterogeneous and homogeneous chemical reactions. The simultaneous effects of dispersion of nanosized particles in partially ionized nano-liquid in the presence of magnetic field are also investigated. Through numerical experiments, it is noted that the temperature of partially ionized nano-liquid increases when electrons collision rate and ion collisions are increased. The transport rate of reacting species decreases when heterogeneous and homogeneous chemical reactions strengths are increased. It is also observed that the effect of electron collisions on the flow in y-direction is the same to that of ion collisions on the flow in y-direction. Homogeneous and heterogeneous chemical reactions have similar effects on concentration of chemically reacting species in qualitative sense. However, in quantitative sense, homogeneous chemical reaction has more significant effect on the concentration reacting species as compared to heterogeneous chemical reaction.

scholarly journals Cu-Al2O3/Water Hybrid Nanofluid Stagnation Point Flow Past MHD Stretching/Shrinking Sheet in Presence of Homogeneous-Heterogeneous and Convective Boundary Conditions

Mathematics ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 1237
Author(s):  
Nur Syazana Anuar ◽  
Norfifah Bachok ◽  
Ioan Pop
Keyword(s):  
Boundary Layer ◽  
Differential Equations ◽  
Stagnation Point ◽  
Numerical Solutions ◽  
Heterogeneous Reactions ◽  
Stagnation Point Flow ◽  
Shrinking Sheet ◽  
Hybrid Nanofluid ◽  
Nanofluid Flow ◽  
Convective Boundary

The intent of this research was to present numerical solutions to homogeneous–heterogeneous reactions of the magnetohydrodynamic (MHD) stagnation point flow of a Cu-Al2O3/water hybrid nanofluid induced by a stretching or shrinking sheet with a convective boundary condition. A proper similarity variable was applied to the system of partial differential equations (PDEs) and converted into a system of ordinary (similarity) differential equations (ODEs). These equations were solved using Matlab’s in-built function (bvp4c) for various values of the governing parameters numerically. The present investigation considered the effects of homogeneous–heterogeneous reactions and magnetic field in the hybrid nanofluid flow. It was observed that dual solutions were visible for the shrinking sheet, and an analysis of stability was done to determine the physically realizable in the practice of these solutions. It was also concluded that hybrid nanofluid acts as a cooler for some increasing parameters. The magnetohydrodynamic parameter delayed the boundary layer separation; meanwhile, the nanoparticle volume fraction quickened the separation of the boundary layer that occurred. In addition, the first solution of hybrid nanofluid was found to be stable; meanwhile, the second solution was not stable. This study is therefore valuable for engineers and scientists to get acquainted with the properties of hybrid nanofluid flow, its behavior and the way to predict it.

scholarly journals Unsteady homogeneous-heterogeneous reactions in MHD nanofluid mixed convection flow past a stagnation point of an impulsively rotating sphere

2019 ◽  
pp. 388-388 ◽  
Author(s):  
Abd Mahdy ◽  
Fekry Hady ◽  
Hossam Nabwey
Keyword(s):  
Mixed Convection ◽  
Chemical Reactions ◽  
Heterogeneous Reactions ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Stagnation Region ◽  
Transfer Factors ◽  
Rotating Sphere ◽  
Heterogeneous Chemical ◽  
Heterogeneous Chemical Reactions

This paper establishes a mathematical analysis for describing the homogeneous and heterogeneous chemical reactions in the nearness of stagnation region of a sphere immersed in a single-phase nanofluid due to a Newtonian heating. The flow is resulted by an impulsively rotating sphere, and the nanofluid involves nanoparticles of Copper and Ferro. The available unsteady-states of the considered system are given in the case when the diffusion coefficients of both reactant and auto catalyst have the same size. The resulting non-linear dimensionless coupled partial differential equations in which governing the mixed convection flow have been tackled numerically via an implicit finite difference technique in combination with the quasi-linearization scheme. The similarities and differences in the behavior of physical pertinent fluid parameters have been elaborated and discussed graphically. It has been clarified that the nanofluid velocity and temperature profiles grow gradually by adding nanoparticles in the base fluid. Again it is noticed from present contribution that concentration of the nanofluid is decreases function by rising the strength of homogeneous and heterogeneous chemical reactions. Finally, numerical computations of the skin friction and heat transfer factors are presented.

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