International Journal of Numerical Methods for Heat & Fluid Flow: Volume 32 Issue 6

Thermal performance analysis of hybrid nanofluid natural convection in a square cavity containing an elliptical obstacle under variable magnetic field

Soufien Belhaj, Brahim Ben-Beya

This study aims to analyze entropy generation and magnetohydrodynamic (MHD) natural convection of hybrid nanofluid in a square cavity, with a heated elliptical block placed at the…

Numerical computation for entropy generation in Darcy-Forchheimer transport of hybrid nanofluids with Cattaneo-Christov double-diffusion

Manoj Kumar Nayak, Sachin Shaw, H. Waqas, Taseer Muhammad

The purpose of this study is to investigate the Cattaneo-Christov double diffusion, multiple slips and Darcy-Forchheimer’s effects on entropy optimized and thermally radiative…

Comparison of three-dimensional flow mixing via pulsation and dynamical stirring: application to the mixing of parallel streams at different temperatures

Francisco Sastre, Elena B. Martin, Angel Velazquez, Abderrahmane Baïri

This paper aims to compare the performance of flow pulsation versus flow stirring in the context of mixing of a passive scalar at moderate Reynolds numbers in confined flows. This…

Inhomogeneous wave reflection from the surface of a partially saturated thermoelastic porous media

Manjeet Kumar, Xu Liu, Kapil Kumar Kalkal, Virender Dalal, Manjeet Kumari

The purpose of this paper is to study the propagation of inhomogeneous waves in a partially saturated poro-thermoelastic media through the examples of the free surface of such…

Two-dimensional thermo-mechanical fractional responses to biological tissue with rheological properties

Magdy A. Ezzat, Roland W. Lewis

The system of equations for fractional thermo-viscoelasticity is used to investigate two-dimensional bioheat transfer and heat-induced mechanical response in human skin tissue…

Lagrangian particle tracking with new weighted fraction Monte Carlo method for studying the soot particle size distributions in premixed flames

Xiao Jiang, Tat Leung Chan

The purpose of this paper is to study the soot formation and evolution by using this newly developed Lagrangian particle tracking with weighted fraction Monte Carlo (LPT-WFMC…

Dual-phase-lag model for a nonlocal micropolar thermoelastic half-space subjected to gravitational field and inclined load

Sunil Kumar, Aarti Kadian, Kapil Kumar Kalkal

The purpose of this study is to analyze the disturbances in a two-dimensional nonlocal, micropolar elastic medium under the dual-phase-lag model of thermoelasticity whose surface…

Physical–numerical parameters in laminar simulations of natural convection on three-dimensional square plates

Sílvio Aparecido Verdério Júnior, Vicente Luiz Scalon, Santiago del Rio Oliveira

The purpose of this study is to analyze the influence of the main physical–numerical parameters in the computational evaluation of natural convection heat transfer rates in…

Entropy generation and heat transport of Cu–water nanoliquid in porous lid-driven cavity through magnetic field

Souad Marzougui, Fateh Mebarek-Oudina, Mourad Magherbi, Ali Mchirgui

The purpose of this paper is to investigate the effects of Ha and the Nanoparticles (NP) volume fraction over the irreversibility and heat transport in Darcy–Forchheimer nanofluid…

Robustness of convergence demonstrated byparametric-guiding andcomplex-root-tunneling algorithms for Bratu’s problem

Zhi Liu, Tienmo Shih, Zhong Chen

This study aims to propose the parametric-guiding algorithm, the complex-root (CR) tunneling algorithm and the method that integrates both algorithms for the heat and fluid flow…

Hydrothermal characteristics of a double flow parabolic trough solar collector equipped with sinusoidal-wavy grooved absorber tube and twisted tape insert

Ali Akbar Abbasian Arani, Ali Memarzadeh

Present investigation conducts a study on the hydrothermal features of a double flow Parabolic Trough Solar Collector (PTSC) equipped with sinusoidal-wavy grooved absorber tube…

Lattice Boltzmann non-equilibrium extrapolation method for modeling hydrodynamic compatibility conditions at curved porous-fluid interfaces

Gholamreza Imani, Mohsen Mozafari-Shamsi

The lattice Boltzmann simulation of fluid flow in partial porous geometries with curved porous-fluid interfaces has not been investigated yet. It is mainly because of the lack of…

Multiphysics simulation of single pulse laser powder bed fusion: comparison of front capturing and front tracking methods

Yaasin Abraham Mayi, Alexis Queva, Morgan Dal, Gildas Guillemot, Charlotte Metton, Clara Moriconi, Patrice Peyre, Michel Bellet

During thermal laser processes, heat transfer and fluid flow in the melt pool are primary driven by complex physical phenomena that take place at liquid/vapor interface. Hence…

Numerical investigations of endwall film cooling design of a turbine vane using four-holes pattern

Jian Liu, Mengyao Xu, Wenxiong Xi, Jiawen Song, Shibin Luo, Bengt Ake Sunden

Endwall film cooling protects vane endwall by coolant coverage, especially at the leading edge (LE) region and vane-pressure side (PS) junction region. Strong flow impingement and…

Entropy generation analysis on unsteady flow of Maxwell nanofluid over the stretched wedge with Cattaneo-Christov double diffusion

Yu Bai, Huiling Fang, Yan Zhang

This paper aims to present the effect of entropy generation on the unsteady flow of upper-convected Maxwell nanofluid past a wedge embedded in a porous medium in view of buoyancy…