Rotation effect on a fluid model exhibiting thermo-diffusion in a porous environment subject to convective boundary conditions through a slanted conduit DOI

S. Ravikumar

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 19

Published: Dec. 15, 2023

The goal of this work is to show how important the rotation effect by using a model that simulates thermo-diffusion in porous material. incorporates convective boundary conditions and an inclined conduit provide comprehensive analysis. Hall current thermal flux’s prospective repercussions are considered. We assume long wavelength low Reynolds number approximate solution governing equations motion. investigation has substantial significance for several medical scenarios, including movement gastric fluid inside intestinal tract blood circulation arteries. Utilizing peristaltic transport mechanism with minor stenosis, industries such as water purification production artificial hearts lungs have used mechanism. Various physical attributes issue discussed, their graphic effects illustrated. Increasing porosity parameter, hall parameter grashof causes velocity distribution enhance, whereas increasing biot it diverge. radiation Prandtl improve temperature extends, worsens it. magnitudes skin friction coefficient nusselt exhibit positive correlation both parameter. Moreover, present study compares numerical values those reported previously published publication.

Language: Английский

Understanding the Chemical Reaction, Mixed Convection, and Thermo‐Diffusion Features of Non‐Newtonian Fluid (Prandtl Fluid) Driven by Electroosmosis Activity via Wavy Tapered Microfluidic System DOI Open Access

S. Ravikumar,

B. Reddappa, Oluwole Daniel Makinde

et al.

Heat Transfer, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

ABSTRACT In this research, we investigate how the hall current and electroosmosis effect rotating Eyring–Prandtl fluid flow in a wavy microchannel when mixed convection joule heating are present. We employ sophisticated peristaltic wave approach to construct model that exhibits nonuniform boundaries characterized by diverse amplitudes phases. focus on walls adjust convective boundary conditions. To simplify system, used lubrication method Debye–Huckel linearization technique linearize Poisson–Boltzmann equations. The electroosmotic parameter Helmholtz–Smoluchowski velocity contribute rise velocity. fluid's temperature drops its concentration rises is raised. of showed similar patterns concerning Biot numbers. When reaction mechanism values increase, decreases because diffusivity chemical molecules decreases. Nusselt number (Nu) increases center channel as result parameter. research electrokinetic through microchannels micro‐peristaltic transport has sparked immense interest biomedical engineering. particular, shows great potential enhancing different aspects cancer treatment, such targeted drug delivery, improved therapeutic effectiveness, advanced diagnostic capabilities. Specifically, physiology, electroosmosis‐based techniques can significantly enhance precision efficiency delivery systems. By leveraging principles electroosmosis, chemotherapeutic agents be improved, ensuring higher concentrations drugs reach tumor site while minimizing systemic exposure associated side effects. Additionally, ability control at microscale within biological tissues opens up new avenues for minimally invasive procedures, improving patient outcomes recovery times.

Language: Английский

Citations

1

An investigation into the impact of thermal radiation and chemical reactions on the flow through porous media of a Casson hybrid nanofluid including unstable mixed convection with stretched sheet in the presence of thermophoresis and Brownian motion DOI Creative Commons
Sridevi Dandu, C. R. Murthy, Raghunath Kodi

et al.

Open Physics, Journal Year: 2024, Volume and Issue: 22(1)

Published: Jan. 1, 2024

Abstract This article investigates the unsteady mixed convention two-dimensional flow of magnetohydrodynamic Casson hybrid nanofluids (alumina oxide and titanium nanoparticles with base fluid water) through porous media over a linearly stretched sheet. We analyzed heat mass transfer in convection, thermal radiation, variable conductivity, diffusivity, chemical reaction presence thermophoresis Brownian motion. A system partial differential equations is reduced to solvable ordinary by applying suitable similarity transformation. used Runga–Kutta method along shooting procedure solve flow, heat, boundary conditions. The results obtained from MATLAB codes are compared previously published same type limiting case. velocity, temperature, concentration profile nanofluid for varying different parameters form graphs, while rate shear stress, expressed tables. noticed that velocity temperature diminish as an parameter increases; however, reverse trend was observed nanoparticle profile. With increase radiation parameter, resultant improves, profiles decreases. higher motion, increases decreases thermophoresis.

Language: Английский

Citations

8

Effects of second order chemical reaction on MHD forced convection Cu, Ag, and Fe3O4 nanoparticles of Jeffrey Nanofluid over a moving plate in a porous medium in the presence of heat source/sink DOI Creative Commons
B. Reddappa,

R. Geetha

Journal of Integrated Science and Technology, Journal Year: 2024, Volume and Issue: 12(3)

Published: Jan. 3, 2024

The objective of the current research is to determine how a second order chemical reaction will affect magnetohydrodynamic flow water-based Jeffrey nanofluid containing Copper (Cu), Silver (Ag), and Ferrous Ferric Oxide (Fe3O4) nanoparticles over flowing stream embedded in porous medium presence heat source/sink. governing system PDEs converted into nonlinear ODEs using similarity transformation approach, these are then resolved MATLAB's built-in solver, bvp4c. In single plot three tables, output velocity, temperature, concentration displayed for included material properties as well related engineering physical parameters like coefficient skin friction rate mass transfer. This model has been rather successfully validated. results indicate that profiles decline λ1 increases, while this behavior opposite distributions . kinetic energy fluid particles decelerates because high viscosity. study demonstrates significance disciplines biocompatibility medicines. Additionally, utilized engineering, physics, space technology, operations involving temperatures cooling, pharmaceuticals, biosensors, paints, cosmetics, conductive coatings, medical devices. URN:NBN:sciencein.jist.2024.v12.762

Language: Английский

Citations

6

A numerical analysis of the rotational flow of a hybrid nanofluid past a unidirectional extending surface with velocity and thermal slip conditions DOI Creative Commons
Anwar Ali Aldhafeeri, Humaira Yasmin

REVIEWS ON ADVANCED MATERIALS SCIENCE, Journal Year: 2024, Volume and Issue: 63(1)

Published: Jan. 1, 2024

Abstract This work inspects 3D magnetohydrodynamic hybrid nanofluid flow on a permeable elongating surface. The emphasis of this paper is the study within rotating frame, taking into account simultaneous impact both thermal and velocity slip boundary conditions. chosen base fluid water, comprises two nanoparticles Cu \text{Cu} Al 2 O 3 {\text{Al}}_{2}{\text{O}}_{3} . effect magnetic porosity parameters taken in momentum equation. radiation, Joule heating, heat source are considered energy Using similarity system, we transform PDEs proposed model ODEs, which then solved numerically by bvp4c technique. field shows dual nature primary secondary velocities. Enrich decreases enhances velocity. rotation parameter has an inverse relation with temperature profile amplified escalation source, field, factor, Eckert numbers. skin friction boosted while Nusselt number drops.

Language: Английский

Citations

4

Irreversibility analysis for peristaltic transport flow of a Phan–Thien–Tanner nanofluid past an asymmetric channel with Lorentz forces DOI

J. U. Viharika,

D.L. Mahendra,

V. Ramanjini

et al.

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2025, Volume and Issue: 105(5)

Published: April 19, 2025

Recent research has shown that copper nanoparticles can cure and even eradicate the most severe disease called cancer. Due to their large atomic number massive heat output, these particles are useful in treatment of malignant tumors. Given this research, work aims present findings from an intensive study on peristaltic transport Phan–Thien–Tanner fluid driven by Lorentz phenomenon carrying asymmetric channel, with a focus entropyanalysis therapeutic implementation. Considering case long wavelengths, low Reynolds numbers, radiation, Hall effects, double‐diffusive convection MHD flow thermophoresis Brownian motion is studied. The governing equation non‐dimensionalized, utilizing parameters no dimensions. By employing perturbation method, model's equations solved. It important note velocity presumed be affected magnetic field. Also, nanofluid's parameter increases temperature fluid. Therefore, drugs treat cancer, fields used. characteristics fluid, while Weissenberg shows dissimilar behaviors. Furthermore, checked previous via plot, indicating two reports accord well.

Language: Английский

Citations

0

Dynamic patterns of electroosmosis peristaltic activity of a Jeffery fluid with Double diffusion and hall Effect through a tapered rotational microfluidic system DOI Creative Commons

S. Ravikumar,

Shahid Farooq, Manish Gupta

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 105266 - 105266

Published: May 1, 2025

Language: Английский

Citations

0

Numerical analysis of the radiative heat transfer and fluid flow between two cylinders using a high-order efficient Probabilists’ Hermite polynomial based collocation method DOI
K. Thanesh Kumar, Srinivas Remidi,

Anitha Deevi Reddy

et al.

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 20

Published: Feb. 28, 2024

Radiative effects are useful in physics and engineering, especially high-temperature operations space technology. The impact of thermal radiation is important managing the heat transfer process polymer production sector. This work examines Soret Dufour effect on mass fluid flow between two cylinders. only thing that creates inner cylinder extending beneath motionless outer cylinder. Thermal nonuniform source/sink also considered. Through application similarity transformations, governing nonlinear differential equations for this dynamics converted into ordinary (ODEs). After that, these simplified solved by applying collocation method with Probabilists' Hermite polynomial. physical behavior parameters examined depth using graphical representations. results a comprehensive examination presented tabular data. Result reveals heat, momentum, fields all significantly impacted gap size. As number parameter value grows, profile rises. concentration rises as values increases, whereas rise Schmidt shows reverse pattern.

Language: Английский

Citations

3

Evolution of heat transfer in MHD nanofluid flow over a porous plate: Insights into the influences of slip and variable viscosity DOI
Naseer M. Khan,

Dania Qaiser,

Kejia Pan

et al.

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 19

Published: June 8, 2024

Temperature-dependent viscosity finds application in various industries such as oil and gas, polymer processing, food manufacturing. Understanding how changes with temperature is critical for optimizing processes like drilling operations, molding, product consistency. Additionally, it plays a vital role controlling flow behavior, ensuring efficient heat transfer, maintaining quality across different conditions. The exploration of temperature-dependent Powell-Eyring nanofluid models represents novel unexplored avenue the field. study's novelty underscored by its comprehensive investigation into range factors, surface suction, thermal radiation, slip velocity effects, nanoparticle concentration slip, all integrated within model. Moreover, adoption bvp4c numerical tool further emphasizes research's unique contributions. curves temperature, concentration, consequence physical parameters are discussed. Increasing value suction parameter promotes transfer but slows nanofluid. injection magnetic field responsible compensating rate. An improvement nanoparticles observed result an increase It evident that both rise significantly when Bi, Biot number, increased. In boundary layer, decrease porosity, parameters.

Language: Английский

Citations

3

Flow of a Viscous Fluid Past a Porous Oblate Spheroid at Small Reynolds Number DOI Creative Commons

Pravin Kumar Srivastava,

Ramesh Yadav,

Ras Pandey

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: 32(1), P. 52 - 77

Published: Jan. 16, 2025

This study deals with the uniform motion of an adhesive, incompressible fluid flowing over a porous oblate spheroid at tiny values Reynolds number. These types problems have been considered by dividing flow into three regions, namely, zone I, II, and III. In which is completely filled viscous fluid, region spheroid, in this governed equation suggested Brinkman. The II III, where clear flows, are regions outside spheroid. these two zones has discussed using perturbation method given Proudman Pearson Stokes stream function expanded terms solution then matched Oseen solution, At interface matching conditions Ochoa-Tapia Whitaker applied for that surface It found drag on reduces departure from spherical shape. Similar effects obtained when permeability medium increases. Also, experienced directly proportional to number ratio effective viscosity real fluid. application past low calculate friction factor internal external flow, hydraulics study, aerofoil design, filtration technology, geothermal energy, precipitation.

Language: Английский

Citations

0

Entropy Generation and Heat Transfer Analysis of the Hydromagnetic Flow of Three Distinct Viscoelastic Fluids Over a Cone With Soret and Dufour Effects via Machine Learning DOI

S. Varshegaa,

P. H. Francis,

P. Sambath

et al.

Heat Transfer, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

ABSTRACT Efficient heat and mass transfer is crucial in fields like energy systems chemical processes, especially when dealing with non‐Newtonian fluids, such as Casson, Maxwell, Williamson. However, the interactions of thermal radiation, Soret, Dufour effects magnetohydrodynamic free convection over a vertical cone have not been thoroughly studied, nor has impact entropy generation on thermodynamic efficiency. This study aims to explore these interactions, focusing how they affect three types fluids. The governing equations are converted into dimensionless forms solved using MATLAB's BVP4C solver, results verified an artificial neural network model. main findings indicate that Casson fluid better characteristics due its lower viscosity at high shear rates. It was also found magnetic can decrease velocity but increase concentration boundary layers, which enhances diffusion Additionally, significantly improve diffusion, analysis highlights their importance for system By combining numerical methods machine learning, this provides useful insights improving systems, reactors, manufacturing processes use

Language: Английский

Citations

0