- 1Department of Mathematics, University of Hafr Al Batin, Hafr Al Batin, Saudi Arabia
- 2Department of Mathematics, Air University, Islamabad, Pakistan
- 3Faculty of Materials and Manufacturing, College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, China
- 4Institute of Mathematics, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan
- 5International Cultural Exchange School, Donghua University, Shanghai, China
The present communication is designed to elucidate the flow attributes of micro-polar non-Newtonian liquid over stretching/shrinking surfaces. In addition, we have observed the stagnation aspect along with the velocity slip condition on the momentum field. The Fourier law of heat conduct, along with a physical aspect of stratified and heat generation absorption, are then used to model the temperature equation. The Buongiorno nanofluid model is used to study additional transport features. After a discussion of PDEs using similarity transformation, mathematical formulations of the given problem are supported in the form of an ordinary differential system. The solution of modeled governing equations containing physical effects is simulated by using the shooting method in conjunction with RK- Method. The significant effects of flow parameters that are associated with velocity, temperature, and concentration distribution for low and upper branch solutions are revealed through graphs and tables. Quantities of engineering concerns like skin friction coefficient and Nusselt number are also compared with previous results of critical values. Furthermore, it should be considered that as the micro-pole parameters are increased, the local skin friction coefficient and the local Nusselt number amplitude also rise.
1 Introduction
Magnetic fluid dynamics is the foundation for improving the progression of high conductivity fluids in the direction of the magnetic field. The study of magnetic field flows, both Newtonian and non-Newtonian, has an extensive variety of applications in industry and engineering. The cooling system fluid metal, MHD generators, liquid beads and sprays, accelerators, atomic reactors, nutrient preparation, the oil industry, microelectronics equipment, geothermal energy extraction equipment, and so on are all examples of MHD applications. Many scientists believe that it has great uses in micro-skipping and slip velocities explored the fluid analysis of small horizontal heat shifts. Sliding flow plays a key role in small-scale instruments, hard disk scale valves, and micro-scale wells. [1] explain the two parallel bands between the secondary fluid magnetic flow force serialized stream. [2] the semi-inverse solution of nanometer uniform magnetic flow on the stretched surface of the secondary fluid was studied. [3] observed an irregular magnetic-fluid-dynamic hybrid convector of a secondary nanofluid caused by thermal radiation in a stretched plane. Recently, [4] analysis of the magnetic flow of the two nanofluids due to non-linear stretching of the surface. [5] examines the magnetic flow of nanofluids in tubes. [6] considered the entropy generation of nanofluids and MHD streams on non-linear stretched surfaces was studied. [7] discuss the rotational flow of water-based nanofluids in parallel plates. [8] analyzed the influence of pseudoplastic fluids loaded with antiparticles on the heat transfer of MHD flow. [9] a three-dimensional MHD stream of Maxwell nanoflow was analyzed by convection boundary. [10] speculate on the magnetic flow of the secondary fluid above the stretching plane. [4] the magnetic fluid dynamics of the secondary nanofluid were analyzed due to the non-linear stretching of the surface. [11] also studied the computational aspects of MHD streams near rotating disks. Many comparative investigations are considering the significance of fluid motion through various physical phenomena that can be found in [12–14].
Thermal rays play an important role in space technology and high-temperature operations. When the temperature changes greatly, the linear thermal radiation can cause significant errors. To overcome this inaccuracy, non-linear thermal radiation was taken into account. The chattels of chemical processes and the flow of thermal radiation to the externally stretched surface were explored by [15]. Many scientists have conducted several studies to emphasize the significance of thermal radiation [16–18].
Natural convection and forced convection combine to form mixed convection, which is among the transmitting phenomena. Mixed convection occurs in many natural and engineering applications during transport. Industrial and technological processes, including exposure to the wind in the solar central receiver, fan-cooled electronics, and cooling of nuclear reactors in the event of downtime. [19] check past mass exchange and Hall effects semi-infinite vertical band magnetic fluid free heat transfer flow. [20] studied the influence of conical micro-polar fluid flow on the stretched surface. Micro-polar fluids are those that contain micro-components that can be rotated, and whose appearance can affect the flow of fluid power so that it can be non-Newtonian. Different types of non-ideal fluids can be seen in regular life, such as macromolecules, animal blood, and shampoos.
Analysis of Dual Solutions in MHD Fluid Flow with Heat and Mass Transfer Past an Exponentially Shrinking/Stretching Surface in a Porous Medium was studied by [21]. Using a conducting fluid to pass through a sheet that was simultaneously stretching and contracting exponentially, researchers examined the nature of dual solutions in the hydromagnetic boundary layer. Investigation of the combined effects of the electrically conducting water-based nanofluid parameters, thermal radiation, the porous medium, convective heating, viscous dissipation, magnetic field, and the nanofluid on the dimensionless velocity, temperature, and rescaled nanoparticle volume frame is the aim of the current work. Readers are directed to [22–34] and any cited references therein for more information.
This study’s objective is to numerically investigate micropolar nanofluid flow with slip boundary conditions. The first step in this is mathematical modeling for the MHD nanofluid flow with a nonlinear condition. Finally, use a shooting scheme to solve numerical results. The remaining sections of the document are arranged as follows; in Section 2, flow configuration and governing equations are described. The numerical scheme is carried out in Section 3. Section 4 conducts a thorough analysis of the findings. Section 5 also discusses the conclusion.
2 Flow analysis and development
This study investigates the steady, 2D, and double stratified flow of an electrically conductive micropolar nanoparticle on a stretching/shrinking surface. It is worth noting that the heat and mass transport phenomena are investigated when velocity slip and thermal generation/absorption are considered (see Figure 1).
The following are the governing equations for heat and mass transfer:
The associated practical boundary condition is given as
where
While using the similarity transformation
Using Eq. into Eqs 2–5 we have
The corresponding non-dimensional boundary conditions are expressed as follows:
The material parameter, magnetic parameter, Eckert number, Schmidt number, Brownian motion number, Prandtl number, thermophoresis number, thermal stratification, and solutal stratification are among the non-dimensional parameters used in our analysis. The mathematically defined as:
3 Physical quantities
The surface shear stress is determined by
Skin friction is defined as
Using eqs. (8)-(10) into eqs. (15)-(16), we have
and the heat transfer rate is given by
after using similarity transformation we have
and local Nusselt number written as
by using similarity transformation, we have
where
4 Numerical scheme
Finding a precise solution to the current governance model equations’ problems is challenging due to their complexity and high nonlinearity. Therefore, the bvp4c method is used to calculate a numerical solution for the ode under boundary conditions. In this case, we first defined the new variables in accordance with the control equations’ order and changed the PDE system into a first-order ode. To adapt to the First-Order system, we use the following variables.
Thus, the reduced system of First-Order differential equations becomes:
And the boundary conditions are
This is a very effective numerical procedure for handling BVP problems. This scheme uses a finite difference code to perform a Level 3 Lobatto IIIa formula. In this approach, we have to select an appropriate finite value of, say between 10 and 35. On the other hand, the grid is chosen and error control depends on the residue of the continuous solution. The current findings are compared to those found in the literature [21] for validation, as shown in Table 1.
TABLE 1. Skin friction comparison with [21].
5 Result and discussion
This section analyzes the computational findings in terms of nondimensional velocities,
Figures 2–6 show the relationship between boundary layer thickness and velocity
The characteristics of angular velocity distribution
Figures 12–16 portray the characteristics of
The dual concentration distributions are displayed in Figures 17–20 for different values of parameters
6 Conclusion
In this research work, we erect a dual solution close to the stagnation point of the micro-polar fluid under the action of nonlinear tensile/shrinkage sheet magnetics. Graphical results and discussion for fluid particles micro-floating, tensile/contraction parameters, and magnetic parameters invoke the thermal flow rate. For computational purposes, using MATLAB bvp4c scheme. As can be seen, MATLAB bvp4c is time-saving, efficient, durable, and fast convergence, and has good consistency with earlier studies. It should also be esteemed that the local skin friction coefficient and the local Nusselt number amplitude increase with increasing micro-pole parameters. The range of skin friction and solution is expanded by the application of magnetic force. The fluid moves more quickly when nonlinear stretching and contracting parameters are used. As the material parameter K rises, resistance close to the surface increases.
Data availability statement
The raw data supporting the conclusion of this article will be made available by the authors, without undue reservation.
Author contributions
YK: funding; AA computed the results; AM and MR wrote the original draft; HS wrote the review draft; HS: modeling; Conceptualization, YK and Validation, YK, AM, and MR.
Funding
This research work was funded by institutional fund projects under no. (IFP-A- 2022-2-5-24). Therefore, the authors gratefully acknowledge technical and financial support from the ministry of education and the University of Hafr Al Batin, Saudi Arabia.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors, and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
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Keywords: MHD, dual solution, nanofluid, micro-polar fluid, heat and mass transfer, velocity slip condition
Citation: Khan Y, Majeed AH, Rasheed MA, Alameer A, Shahzad H, Irshad S and Faraz N (2022) Dual solutions for double diffusion and MHD flow analysis of micropolar nanofluids with slip boundary condition. Front. Phys. 10:956737. doi: 10.3389/fphy.2022.956737
Received: 30 May 2022; Accepted: 08 July 2022;
Published: 19 August 2022.
Edited by:
Kh. S. Mekheimer, Al-Azhar University, EgyptReviewed by:
Oluwole Daniel Makinde, Stellenbosch University, South AfricaNoreen Sher Akbar, National University of Sciences and Technology (NUST), Pakistan
Sankar M. University of Technology and Applied Sciences, Oman
Copyright © 2022 Khan, Majeed, Rasheed, Alameer, Shahzad, Irshad and Faraz. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Y. Khan, eWFzaXJraGFuQHVoYi5lZHUuc2E=; Afraz Hussain Majeed, Y2hhZnJhemh1c3NhaW5AZ21haWwuY29t