...Paluru Sreedevi; P. Sudarsana Reddy; Ali Chamkha Purpose This study aims to investigate entropy generation in unsteady Buongiorno’s model nanofluid flow inside a square cavity under the combined effects of thermal radiation, chemical reaction and Cattaneo–Christov heat flux, with emphasis...

... parameters on fluid flow and thermal performance, including the radiation parameter, heat source parameter, mixed convection parameter, porosity parameter curvature and nanoparticle concentration. The laws governing the field of flow equations are transformed by similarity substitutions into two nonlinear...

.... In a recent study, Nabwey et al. (2023a , 2023b , 2023c) investigated the effects of a square obstacle placed in the center of an inclined porous chamber with corrugated walls, filled with a Cu-Al₂O₃-water hybrid nanoliquid considering radiation effect. Their findings...

...Paluru Sreedevi; P. Sudarsana Reddy Purpose This paper aims to numerically examine the impact of gyrotactic microorganisms and radiation on heat transport features of magnetic nanoliquid within a closed cavity. Thermophoresis, chemical reaction and Brownian motion are also considered in flow...

...U.S. Mahabaleshwar; Mahesh Rudraiah; Huang Huang; Bengt Ake Sunden Purpose The purpose of this study is to analyze the impact of inclined magnetohydrodynamics (MHD) and thermal radiation on the flow of a ternary micropolar nanofluid on a sheet that is expanding and contracting while applying mass...

...Marjan Sharifi; Majid Siavashi; Milad Hosseini Purpose Present study aims to extend the lattice Boltzmann method (LBM) to simulate radiation in geometries with curved boundaries, as the first step to simulate radiation in complex porous media. In recent years, researchers have increasingly...

...P. Sudarsana Reddy; Paluru Sreedevi Purpose Buongiorno’s type nanofluid mass and heat transport appearances inside a cavity filled with gyrotactic microorganisms by captivating thermal radiation is analyzed in the present work. Finite element investigation is instigated to examine the converted...

..., it studies the irreversibility caused by the flow of a hydromagnetic nanofluid past a radiated stretching sheet by considering different shapes of TiO₂ and Cu nanoparticles with water as the base fluid. Design/methodology/approach In this study, the authors investigated entropy production...

...Akram Mazgar; Khouloud Jarray; Fadhila Hajji; Fayçal Ben Nejma Purpose This paper aims to numerically analyze the effect of non-gray gas radiation on mixed convection in a horizontal circular duct with isothermal partial heating from the sidewall. The influence of heater location on heat transfer...

..., thermal radiation and heat generation/absorption. The entropy of the current complex system is analyzed based on the second law of thermodynamics. Using equation (5) , the following dimensionless system is obtained: (6) ∂ U ∂ X + ∂ V ∂ Y = 0 , FEM-CBS algorithm...

... for calculation of important functions (f and Nu). Outputs reveal the impacts of fin height (HF), number of fin (NF), inlet temperature (T_in) and velocity on irreversibility, thermal treatment. The radiation source term can be calculated after below equation has been solved (Modest, 2013...

... for higher values of viscous dissipation parameter, radiation parameter, Dufour number, whereas it increases for bigger values of Prandtl number. The numerical results have been validated through comparison with existing literature as a special case of proposed model and perceived that the Soret number has...

...Nur Syazana Anuar; Norfifah Bachok; Ioan Pop Purpose This paper aims to discuss a stability analysis on Cu-Al₂O₃/water nanofluid having a radiation and suction impacts over a rotating stretching/shrinking sheet. Design/methodology/approach The partial differential...

...Emad H. Aly; Abdelhalim Ebaid Purpose The purpose of this paper is to study flow of the Marangoni boundary layer pasta surface embedded in a porous medium saturated by a hybrid nanofluid in the presence of a magnetic field and thermal radiation. Design/methodology/approach The governing model...

..., and the surrounding temperature is considered to be T_a. The Darcy’s model has been applied to study the penetration of fluid through the pores. Because the fin interacts with the environment in a completely wet condition, natural convection and radiation are noticeable. In this study, we assume...

...Sowmya G.; Gireesha B.J.; Prasannakumara B.C. Purpose The purpose of this paper is to study the thermal behaviour of radial porous fin wetted with nanofluid containing different shaped nanoparticles in the presence of natural convection and radiation. Here, the nanofluid suspended with molybdenum...

...B.J. Gireesha; G. Sowmya; Madhu Macha Purpose This paper aims to study the temperature performance with natural convection and radiation effect on a porous fin in fully wet condition. Design/methodology/approach The finite element method (FEM) is applied to generate numerical solution...

...Iskandar Waini; Anuar Ishak; Ioan Pop Purpose This paper aims to investigate the steady flow and heat transfer of a Cu-Al₂O₃/water hybrid nanofluid over a nonlinear permeable stretching/shrinking surface with radiation effects. The surface velocity condition is assumed...

...Abdullah A.A.A. Al-Rashed; Lioua Kolsi; Mohammed A. Tashkandi; Emad Hasani Malekshah; Ali J. Chamkha; Mohamad Naceur Borjini Purpose The purpose of this paper is to investigate the coupled effect of magnetic field and radiation on convective heat transfer of low electrically conductive dielectric...

... Limited 2017 Emerald Publishing Limited Licensed re-use rights only Thermal insulation Radiation Fibrous spacer Identification procedure Space vehicle Vacuum experiment Ministry of Science and Education 834 The present study is a part of a work on optimization of passive...