In the present work, dynamical aspects of boundary layer flow of hydromagnetic fluid (suspended with microorganisms) are investigated near the stagnation region over a stretchable heated permeable sheet. Viscosity is taken as a linear function of temperature where the flow field accommodates diffusion processes due to temperature and concentration gradients (Soret/Dufour numbers). A system of partial differential equations is set up for the mathematical description of the related bio-physical phenomenon. Unit free conversions and analysis of symmetry are implemented to obtain nonlinear dimensional free differential equations setup which can be solved numerically via the Runge–Kutta–Fehlberg scheme. Results in the form of pictorial and tabulation representation reveal that velocity profile increases when viscosity is a function of temperature difference, but the velocity profile influences the fluid temperature in the opposite direction. © 2019, King Fahd University of Petroleum &amp; Minerals.

Kumar R

Computer Science

School of Computer Science and Engineering

Chennai Campus

Venkata Satyanarayana

Department of Mathematics

School of Advanced Sciences

Vellore Campus

Md. Basir M.F

Md. Ismail A.I

Sarojamma G

Raza J

Mahmood A.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Arabian Journal for Science and Engineering

Purpose: The purpose of this paper is to provide an insight into the influence of gyrotactic microorganisms and Hall effect on the boundary layer flow of 29 nm CuO-water mixture on the upper pointed surface of a rocket, over the bonnet of a car and upper pointed surface of an aircraft. This is true since all these objects are examples of an object with variable thickness. Design/methodology/approach: The simplification of Rosseland approximation (Taylor series expansion of T4 about T∞) is avoided; thus, two different parameters relating to the study of nonlinear thermal radiation are obtained. The governing equation is non-dimensionalized, parameterized and solved numerically. Findings: Maximum vertical and horizontal velocities of the 29 nm CuO-water nanofluid flow is guaranteed at a small value of Peclet number and large value of buoyancy parameter depending on the temperature difference. When the magnitude of thickness parameter χ is small, cross-flow velocity decreases with the velocity index and the opposite effect is observed when the magnitude of χ is large. Originality/value: Directly or indirectly, the importance of the fluid flow which contains 29 nm CuO nanoparticle, water, and gyrotactic microorganisms in the presence of Hall current has been pointed out as an open question in the literature due to its relevance in imaging, ophthalmological and translational medicine informatics. © 2018, Emerald Publishing Limited.

Multidiscipline Modeling in Materials and Structures

Gyrotactic microorganisms and thermoelectric effects on the dynamics of 29 nm CuO-water nanofluid over an upper horizontal surface of paraboloid of revolution

This study investigates the flow, heat and mass transport attributes of the three-dimensional motion of a magnetohydrodynamic rotating fluid. The vital interest in this article is to investigate the effect of cross diffusion, thermophoresis and Brownian motion in the presence of rotating flow past a stretching surface. The partial differential equations explaining the flow situation have been converted into dimensionless ordinary differential equations with the help of suitable transformations. The solution of the problem is achieved by taking the advantage of the shooting and Runge-Kutta numerical algorithms. From the solution, it is perceived that the flow is affected by sundry physical quantities like the Soret and Dufour effects, thermophoresis and the Brownian moment. The impact of these parameters on the momentum, energy and mass transport is discussed with graphical and tabular results. From the results we infer that the rotation decreases the flow field and encourages the thermal and concentration fields. © 2017 The Physical Society of the Republic of China (Taiwan)

Chinese Journal of Physics

Three-dimensional magnetohydrodynamic rotating flow past a stretched surface with cross diffusion

International Journal of Heat and Mass Transfer

Investigation of mixed convection flow of Carreau nanofluid over a wedge in the presence of Soret and Dufour effects

International Journal of Thermal Sciences

Lattice Boltzmann simulations of the double-diffusive natural convection and oscillation characteristics in an enclosure with Soret and Dufour effects

Alexandria Engineering Journal

Nanofluid flow on the stagnation point of a permeable non-linearly stretching/shrinking sheet

Exploration of Thermal-Diffusion and Diffusion-Thermal Effects on the Motion of Temperature-Dependent Viscous Fluid Conveying Microorganism

Journal	Data powered by TypesetArabian Journal for Science and Engineering
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	2193-567X
Open Access	0