International Journal of Numerical Methods for Heat & Fluid Flow: Volume 33 Issue 2

Deep neural network prediction for effective thermal conductivity and spreading thermal resistance for flat heat pipe

Myeongjin Kim, Joo Hyun Moon

This study aims to introduce a deep neural network (DNN) to estimate the effective thermal conductivity of the flat heat pipe with spreading thermal resistance.

Dual solutions for MHD hybrid nanofluid stagnation point flow due to a radially shrinking disk with convective boundary condition

Rusya Iryanti Yahaya, Norihan Md Arifin, Ioan Pop, Fadzilah Md Ali, Siti Suzilliana Putri Mohamed Isa

This paper aims to study the stagnation point flow of Al₂O₃–Cu/H₂O hybrid nanofluid over a radially shrinking disk with the imposition of the magnetic field, viscous-Ohmic…

Buoyant heat transfer of nanofluids in a vertical porous annulus: a comparative study of different models

N. Keerthi Reddy, M. Sankar

This study aims to numerically study the buoyant convective flow of two different nanofluids in a porous annular domain. A uniformly heated inner cylinder, cooled outer…

Hybrid nanofluid magnetohydrodynamic mixed convection in a novel W-shaped porous system

Dipak Kumar Mandal, Nirmalendu Biswas, Nirmal K. Manna, Rama Subba Reddy Gorla, Ali J. Chamkha

This study aims to numerically examine the influence of various geometric parameters of a novel W-shaped porous cavity undergoing hybrid nanofluid-based magnetohydrodynamic mixed…

Magneto-radiative gas near an unsmooth boundary with variable temperature

Ji-Huan He, Nasser S. Elgazery, Nader Y. Abd Elazem

This paper aims to study the magneto-radiative gas (water vapor) on an unsmooth boundary.

A robust scheme for numerical simulation of heat transfer in two-fluid flows with high volumetric heat capacity contrasts

Min Lu, Zixuan Yang, Guowei He

This paper aims to propose a new method for robust simulations of passive heat transfer in two-fluid flows with high volumetric heat capacity contrasts.

Lattice-Boltzmann simulation of incompressible fluid flow past immersed bodies: models and boundary conditions

Jorge Lucas Krenchiglova, Luís Orlando Emerich dos Santos, Diogo Nardelli Siebert, Paulo Cesar Philippi

The main purpose of this paper was to investigate Lattice Boltzmann (LB) models for the bulk incompressible flow past immersed bodies and to find the set of boundary conditions…

Field test and numerical reconstitution of natural winds at the tunnel entrance section of high-speed railway

Weichao Yang, Yikang Liu, E. Deng, Youwu Wang, Xuhui He, Mingfeng Lei, Yunfeng Zou

The purpose of this paper is to understand the natural wind field characteristics of the tunnel entrance section and analyzing the aerodynamic performance of high-speed railway…

The effects of GDL anisotropic transport properties on the PEFC performance

Isaac Chukwuemezu Okereke, Mohammed S. Ismail, Derek Ingham, Kevin J. Hughes, Lin Ma, Mohamed Pourkashanian

This paper aims to numerically investigate the impact of gas diffusion layer (GDL) anisotropic transport properties on the overall and local performance of polymer electrolyte…

An extended KdV6 hierarchy of nonlinear evolution equations: Painlevé integrability and variety of branches of resonances

Abdul-Majid Wazwaz, Wedad Albalawi, Samir A. El-Tantawy

The purpose of this paper is to study an extended hierarchy of nonlinear evolution equations including the sixth-order dispersion Korteweg–de Vries (KdV6), eighth-order dispersion…

Thermal irreversibility demystified

R.S. Ransing

This study aims to understand the difference between irreversibility in heat and work transfer processes. It also aims to explain that Helmholtz or Gibbs energy does not represent…

Flow mechanism of Gaussian light-induced vortex motion inside a nanofluid droplet

Zhe Liu, Zexiong Yu, Leilei Wang, Li Chen, Haihang Cui, Bohua Sun

The purpose of this study is to use a weak light source with spatial distribution to realize light-driven fluid by adding high-absorbing nanoparticles to the droplets, thereby…

Transient and passage to steady state in fluid flow and heat transfer within fractional models

Mustafa Turkyilmazoglu

The classical integer derivative diffusionmodels for fluid flow within a channel of parallel walls, for heat transfer within a rectangular fin and for impulsive acceleration of a…

Modeling entropy generation of magnetohydrodynamics flow of nanofluid in a porous medium: a review

Feda Abdalla Zahor, Reema Jain, Ahmada Omar Ali, Verdiana Grace Masanja

The purpose of this paper is to review previous research studies on mathematical models for entropy generation in the magnetohydrodynamics (MHD) flow of nanofluids. In addition…

A numerical study of the Burgers’ and Fisher’s equations using barycentric interpolation method

R.C. Mittal, Rajni Rohila

The purpose of the method is to develop a numerical method for the solution of nonlinear partial differential equations.

Numerical and asymptotic solutions of the unsteady mixed convection boundary-layer flow over an expanding/contracting vertical cylinder

John H. Merkin, Yian Yian Lok, Ioan Pop

The purpose of this study is to obtain both the numerical and asymptotic solutions of the unsteady mixed convection flow and heat transfer over an expanding or contracting…

Enhancement of turbulent thermal convection in a circular tube with a slotted twisted tape

Shiang-Wuu Perng, Horng Wen Wu, Nugroho Putra Kelana, Yi-Ling Guo, Chen-Jui Yang

The purpose of this paper, computational fluid dynamics (CFD) work, is to promote turbulent thermal convection in a heated circular tube using a passive scheme of a slotted…

Explosion behaviors of IPN/air mixture at high temperature and high pressure

Hang-Wei Wan, Yu-Quan Wen, Qi Zhang

The reaction dynamics of combustible clouds at high temperatures and pressures are a common form of energy output in aerospace and explosion accidents. The cloud explosion process…

A new sorting algorithm-based merging weighted fraction Monte Carlo method for solving the population balance equation for particle coagulation dynamics

Fei Wang, Tat Leung Chan

The purpose of this study is to present a newly proposed and developed sorting algorithm-based merging weighted fraction Monte Carlo (SAMWFMC) method for solving the population…

Reflection/transmission of plane waves at the interface of an ideal fluid and nonlocal piezothermoelastic medium

Vipin Gupta, Rajesh Kumar, Manjeet Kumar, Vijayata Pathania, M.S. Barak

This paper aims to study the variation of energy ratios of different reflected and transmitted waves by calculating the amplitude ratios.