Simulation of magnetic dipole on gyrotactic ferromagnetic fluid flow with nonlinear thermal radiation
- PDF / 4,980,695 Bytes
- 15 Pages / 595.276 x 790.866 pts Page_size
- 35 Downloads / 199 Views
Simulation of magnetic dipole on gyrotactic ferromagnetic fluid flow with nonlinear thermal radiation M. Ijaz1 · S. Nadeem2,3 · M. Ayub4 · S. Mansoor5 Received: 1 February 2020 / Accepted: 16 May 2020 © Akadémiai Kiadó, Budapest, Hungary 2020
Abstract The present paper explores the features of thermal radiation on ferromagnetic Jeffrey fluid flow within the frame of gyrotactic microorganisms and magnetic dipole. Microorganism is employed just to stabilize the suspended nanoparticles through bioconvection which has been induced by combined effects of buoyancy forces and magnetic field. Nonuniform heat generation/absorption, stratification, dissipation and chemical reaction are accounted. The attained system is solved numerically by means of the shooting method in conjunction with Runge–Kutta method (RKF-45). The obtained numerical results are then presented in graphical and tabular form and are discussed at length. In addition, the validation of present outcomes is achieved by developing comparison with existing published work. The present analysis reveals that the temperature profile enhances in view of radiation and ferrohydrodynamic interaction parameters. Moreover, space- and temperature-dependent heat absorption are more suitable for cooling purposes. Keywords Thermal radiation · Ferromagnetic fluid · Bioconvection · Gyrotactic microorganisms · Stratifications · Buongiorno model
Introduction Smart materials are materials whose properties can be significantly changed in a control fashion by an external stimulus. The magnetic fluids are smart liquid materials whose properties can be manipulated by applying a magnetic field. Generally, magnetic liquids are categorized into three most popular classes: ferrofluids (FFs), inverse ferrofluids (IFF) and magnetorheological fluids (MR) (see Table 1). Firstly, Stephen [1] invented famous ferrofluids in 1965. Ferrofluids * S. Nadeem [email protected] 1
Department of Mathematics, Quaid-I-Azam University, 45320, Islamabad 44000, Pakistan
2
Mathematics and Its Applications in Life Sciences Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam
3
Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, Vietnam
4
HITEC University, Cantt. Taxila, Rawalpindi, Punjab 47080, Pakistan
5
Health Physics Division, Pakistan Institute of Nuclear Science and Technology (PINSTECH), Islamabad, Pakistan
are colloidal mixture of nanoscale particles (ferrimagnetic or ferromagnetic) dispersed in a nonmagnetic base fluid. Inverse ferrofluid (or magnetic holes) is a family of magnetic fluids, which are composed of micron-sized nonmagnetizable particles in ferrofluids. Magnetorheological fluids are suspensions of magnatizeable micron-sized particles (typically carbonyl iron) in nonmagnetic medium (typically nonpolar liquids). Ferrofluids are widely engaged in various equipments such as X-ray machine, laser, nuclear power plants, textiles machine tools, heat treating furnaces, refrigeration, semiconductor processing, robotics, c
Data Loading...
