Renormalization group model of turbulent bioconvection of gyrotactic microorganisms DOI
А. А. Авраменко,

Yu.Yu. Kovetska,

Igor V. Shevchuk

et al.

Waves in Random and Complex Media, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 19

Published: July 15, 2024

The problems connected with processes of turbulent bioconvection are considered. These typical for technologies microbiological and other industries. concept using renormalization groups in the theory turbulence is shown. A step-by-step algorithm applying methodology to deriving equation mass transfer bioconvective processes, which includes diffusion coefficient, presented. dependence Schmidt number was obtained. It has been shown that function six parameters: molecular number, viscosity, parameter geometric shape microorganisms, average velocity motion microorganisms relative fluid, orientation parameter. enables closing equation. effect on development a flow presence gyrotactic analyzed. Analysis shows spherical symmetry make small contribution formation processes. results analysis good agreement data from studies nonlinear hydrodynamic stability based Lorentz model.

Language: Английский

Comparative analysis of viscous dissipation effects on Prandtl fluid including contraction and relaxation phenomena DOI

Aqila Shaheen,

Imran Siddique,

Zile Huma

et al.

Heat Transfer, Journal Year: 2024, Volume and Issue: 53(7), P. 3687 - 3705

Published: June 17, 2024

Abstract This paper investigates the effects of magnetohydrodynamics and heat transfer on peristaltic transport Prandtl fluid in a vertical endoscopic tube. The reduction complexity equations governing flow entails use long wavelength low Reynolds number approximations. These complex for pressure gradient velocity profile are handled analytically using perturbation technique with convective boundary conditions, temperature concentration profiles carefully solved exact solution. frictional forces rise also simulated numerical integration. resulting formulas velocity, temperature, concentration, rise, graphed MATLAB MATHMATICA software, all different physical parameters investigated assessed. streamlines five distinct wave types sketched at conclusion to show phenomenon trapping. It is that rises due buoyancy falls influence magnetic forces.

Language: Английский

Citations

1

A revised double diffusion Cattaneo–Christov bioconvective model for unsteady Williamson nanofluid due to Riga surface with additional nonlinear thermal sources DOI
Samaira Aziz, Sami Ullah Khan,

Adnan Abbasi

et al.

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2024, Volume and Issue: 104(11)

Published: Oct. 5, 2024

Abstract Current analysis presents the unsteady two‐dimensional flow of Williamson nanofluid with suspension microorganisms due to stretched Riga surface porous medium. The applications external heat source/sink non‐uniform relations are suggested. Furthermore, activation energy and nonlinear radiative effects encountered. extension in equation is subject implications famous Cattaneo–Christov model. problem simplified help dimensionless quantities. analytical simulations formulated have been performed built‐in bvp4c numerical scheme. physical aspects presented for various parameters. It claimed that velocity profile boosted modified Hartmann parameter while declining change noted fluid constant. temperature field enhances source constants. results convey transfer enhancement, solar energy, extrusion processes, automobile industries, fertilizers, so forth.

Language: Английский

Citations

1

Numerical analysis of inclined magnetic force impact on cross liquid flowing with widening shallow and heat generating DOI
Syed M. Hussain, Nek Muhammad Katbar, Hijaz Ahmad

et al.

International Journal of Modelling and Simulation, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 12

Published: April 15, 2024

The creation, utilisation, conversion, and exchange of thermal energy are all covered under the engineering subject heat transfer. Heat transfer plays a major role in industrial sectors like food packaging, additive manufacturing, electronic cooling, microturbine, etc. Scientists across world have tried to explore impact on fluid past an expandable surface due its exciting applications industries polymer production, paper crystal glass This article has unique exploration, it emphasises interpreting Cross flow along stretching with convective transport analysis by using Lie group methodology. We investigated implication inclined upper-convected Maxwell magnetohydrodynamic (MHD) movement through penetrable strained plate. To solve nonlinear differential equations clearly determine their absolute invariants, approach is introduced. For numerical solution non-linear ordinary boundary conditions, fourth-order Runge–Kutta procedure shelling performance utilised. Plots showing impacts motivated non-motivated MHD researched examined for alterations many parameters, statistical graphs given explain physical values. It evident that opposing behaviour occurs connection temperature captivation generation parameters together MHD. Under amplified, heat-generating parameter Deborah number, rate transmission increases. investigation liquid presence/absence non-inclined not been yet available literature.

Language: Английский

Citations

0

Experimental and statistical investigation on the dielectric breakdown of magneto nanofluids for power applications DOI Creative Commons

Md Rizwan,

Suhaib Ahmad Khan, M. Rizwan Khan

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: 19(1)

Published: July 2, 2024

Abstract The insulating oil serves the dual purpose of providing insulation and cooling within transformers. This investigation aims to explore impact various nanoparticles on dielectric breakdown voltage (BDV) oils. study examines effect concentration magnetic Nanoparticles such as iron (II, III) oxide (Fe 3 O 4 ), cobalt (CO ferrous phosphide P) were utilized create nanofluids with carrier mediums consisting mineral synthetic ester oil. BDV determination was conducted using a VDE S–S electrode system according IEC 60156 standards. Nanofluid prepared two-step method, their concentrations ranged from 0.01 g/L, 0.02 0.04 g/L in base Twelve iterations for each nanofluid, measurements recorded. results indicate noteworthy enhancement nanofluids. statistical analysis performed property nanofluid samples better accuracy. maximum at specific nanoparticle shown by nanofluid. show that under configuration, greatest overall observed Fe P oil, an 70.05%, 46.29%.

Language: Английский

Citations

0

Renormalization group model of turbulent bioconvection of gyrotactic microorganisms DOI
А. А. Авраменко,

Yu.Yu. Kovetska,

Igor V. Shevchuk

et al.

Waves in Random and Complex Media, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 19

Published: July 15, 2024

The problems connected with processes of turbulent bioconvection are considered. These typical for technologies microbiological and other industries. concept using renormalization groups in the theory turbulence is shown. A step-by-step algorithm applying methodology to deriving equation mass transfer bioconvective processes, which includes diffusion coefficient, presented. dependence Schmidt number was obtained. It has been shown that function six parameters: molecular number, viscosity, parameter geometric shape microorganisms, average velocity motion microorganisms relative fluid, orientation parameter. enables closing equation. effect on development a flow presence gyrotactic analyzed. Analysis shows spherical symmetry make small contribution formation processes. results analysis good agreement data from studies nonlinear hydrodynamic stability based Lorentz model.

Language: Английский

Citations

0