Nonlinear mixed convective nanofluid flow about a rough sphere with the diffusion of liquid hydrogen

Patil, P.M.; Shankar, Hadapad F.; Hiremath, P. S.; Momoniat, E.

doi:10.1016/j.aej.2020.10.029

Cited by 48 publications

(16 citation statements)

References 32 publications

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“…The subscripts hnf, f and nf and denotes hybrid nanoliquid, base liquid and nanoliquid respectively. Following non-similarity parameters as in Patil et al [44,47], Rajakumar et al [32] and Roy et al [33] are employed. The non-similarity transformations and resulting flow variables are as follows:…”

Section: Nanofluid Hybrid Nanofluidmentioning

confidence: 99%

Mixed Convection of Silica–Molybdenum Disulphide/Water Hybrid Nanoliquid over a Rough Sphere

2021

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A steady combined convective motion over a rough sphere with hybrid nanoparticles is analyzed. We have considered silica (SiO2) and molybdenum disulphide (MoS2) nanoadditives which are added in H2O to form MoS2–SiO2/H2O hybrid nanoliquid. The partial differential equations describing the boundary layer flow characteristics are reduced into non-dimensional form with appropriate non-similar reduction. It should be noted that the governing equations have been written using the conservation laws of mass, momentum and energy. These considered equations allow simulating the analyzed phenomenon using numerical techniques. Implicit finite difference approximation and technique of Quasilinearization are utilized to work out the dimensionless control equations. The influence of various physical characteristics included in this challenge, such as the velocity fields and temperature patterns, is investigated. The study of border gradients is performed, which deals with the skin friction and energy transport strength. The plots of computational outcomes are considered, which ascertain that velocity distribution reduces, whilst coefficient of friction at the surface, energy transport strength and temperature distribution augment for enhancing values of hybrid nanofluid. For enhancing magnitude of combined convection parameter, dimensionless velocity distribution, surface drag coefficient and energy transport strength enhance, while temperature distribution diminishes. High impact of hybrid nanofluid on energy transport strength and the surface friction compared to the host liquid and mono nanofluid in presence/absence of surface roughness is shown. Velocity distribution enhances for rising values of velocity ratio parameter. Enhancing values of frequency parameter rise the friction at the surface and energy transport strength. It is also examined that the hybrid nanofluid has a maximum temperature for the blade-shaped nanoparticles and has a low temperature for the spherical-shaped nanoparticles.

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Section: Nanofluid Hybrid Nanofluidmentioning

confidence: 99%

Mixed Convection of Silica–Molybdenum Disulphide/Water Hybrid Nanoliquid over a Rough Sphere

2021

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“…Ghosh and Mukhopadhyay 4 have studied the mixed convective flow of nanofluid with arbitrary-shaped nanoparticles under the influence of heat source/sink. Recently, Patil et al [5][6][7] have carried out numerical investigations on the mixed convective flow of nanofluid over various geometries.…”

Section: Introductionmentioning

confidence: 99%

Homogeneous and heterogeneous reactions in the mixed convection flow of hybrid nanofluid over a slender cylinder

Patil

Benawadi

Tonannavar

et al. 2022

Asia-Pacific J Chem Eng

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This article is about the study of homogeneous and heterogeneous reactions in the mixed convection flow of hybrid nanofluid over a moving vertical slender cylinder. It is based on the considerations of unequal diffusivity of chemical species and the numerical solutions from the nonsimilar approach. This study has found applications in many chemically reacting processes, including the processes in the biochemical systems, combustion, and catalysis. Numerically approximate solutions to a set of equations, which govern the flow, temperature, and concentrations of the chemical species with prescribed boundary constraints, are obtained by utilizing the implicit finite-difference scheme aided by the quasi-linearization technique. The impacts of several relevant parameters on various profiles and gradients are discussed with the aid of graphs and tables. From the results, the skin friction coefficient and rate of heat transport are pronounced to be more for hybrid nanofluid than nanofluid.The strength of homogeneous reaction on species concentration is found to be fewer than the heterogeneous reaction. The streamwise coordinate (nonsimilar variable) is more favorable to the concentration of autocatalyst than to the reactant concentration.

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“…Moreover, nanoliquids have numerous engineering applications in solid-state lighting, material processing, transportation, high-power X-rays, medicine, material synthesis, manufacturing, biomedical, and scientific measurement. [3][4][5] Recently, Reddy and Chamkha 6 have analyzed the influence of nanoliquid on a horizontal cylinder with heat and mass transferences and observed that the nanoparticle volume fraction pattern diminishes with rising values of Lewis number. Chamkha and Aly 7 have investigated MHD free convective nanoliquid flow around a vertical plate and concluded that the surface drag coefficient is enhanced by enhancing values of Lewis number while decreasing with the Brownian ratio parameter.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, nanoliquids have numerous engineering applications in solid‐state lighting, material processing, transportation, high‐power X‐rays, medicine, material synthesis, manufacturing, biomedical, and scientific measurement 3–5 . Recently, Reddy and Chamkha 6 have analyzed the influence of nanoliquid on a horizontal cylinder with heat and mass transferences and observed that the nanoparticle volume fraction pattern diminishes with rising values of Lewis number.…”

Section: Introductionmentioning

confidence: 99%

Quadratic mixed convective nanofluid flow past a moving yawed cylinder in the presence of thermal radiation and diffusive liquids

2022

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The fluid flow around a yawed cylinder helps to understand the practical implications for undersea applications, such as managing transference, separating the boundary layer above submerged blocks, and suppressing recirculating bubbles. As many authors such as Roy, Chiu and Lienhard, Roy and Saikrishnan, and Revathi et al. have analyzed a boundary layer flow over a yawed cylinder, and their work sticks to only forced convection, we are interested to work on mixed convection flow. Therefore, the work of these researchers has stimulated us to work on the present article. As a result, we have examined the work on triple diffusion quadratic mixed convective nanofluid flow over a moving yawed cylinder. The impact of yaw angle, which exists due to the inclination of a vertically moving cylinder away from the origin, is mathematically investigated in the present paper by converting the governing equations into a compatible form using appropriate nonsimilar transformations and the quasilinearization technique. Nanofluids have crucial usages in science and technology, marine engineering, and applications in industries such as plastic, polymer industries, cancer home therapy, and building sciences. Many processes in new engineering areas occur at high temperatures, and knowledge of radiation heat transfer becomes very important for designing the pertinent equipment. Nuclear power plants, gas turbines, and the various propulsion devices for aircraft, missiles, satellites, and space vehicles are examples of such engineering areas. The finite difference approximation is employed to solve the resulting equations. Enhancing the magnitude of thermal radiation enhances the temperature of the liquid and the energy transport strength. However, liquid hydrogen and liquid oxygen species concentration patterns are reduced in nanofluid compared to traditional liquids. At the same time, the outcomes behave conversely in the case of their wall gradients. Furthermore, the temperature of the liquid enhances the enhancing values of Brownian motion and thermophoresis characteristics. Moreover, nanoparticle mass transport augments with enhancing yaw angle and Lewis number values. Both species' concentration profiles decrease for increasing values of yaw angle. The velocity profiles increase for increasing values of velocity ratio parameter in the spanwise and chordwise directions.

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Nonlinear mixed convective nanofluid flow about a rough sphere with the diffusion of liquid hydrogen

Cited by 48 publications

References 32 publications

Mixed Convection of Silica–Molybdenum Disulphide/Water Hybrid Nanoliquid over a Rough Sphere

Mixed Convection of Silica–Molybdenum Disulphide/Water Hybrid Nanoliquid over a Rough Sphere

Homogeneous and heterogeneous reactions in the mixed convection flow of hybrid nanofluid over a slender cylinder

Quadratic mixed convective nanofluid flow past a moving yawed cylinder in the presence of thermal radiation and diffusive liquids

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