International Journal of Numerical Methods for Heat & Fluid Flow: Volume 32 Issue 7

Stagnation point flow of a second-grade hybrid nanofluid induced by a Riga plate

Najiyah Safwa Khashi'ie, Iskandar Waini, Syazwani Mohd Zokri, Abdul Rahman Mohd Kasim, Norihan Md Arifin, Ioan Pop

This paper aims to accentuate the behavior of second-grade hybrid Al₂O₃–Cu nanofluid flow and its thermal characteristics driven by a stretching/shrinking Riga plate.

Numerical simulation of the electroosmotic flow of the Carreau-Yasuda model in the rectangular microchannel

Saeed Ghorbani, Ali Jabari Moghadam, Amin Emamian, R. Ellahi, Sadiq M. Sait

In this paper aims to investigate the numerical simulation of the electroosmotic flow of the Carreau-Yasuda model in the rectangular microchannel. Electromagnetic current is…

An evaluation of force term in the lattice Boltzmann method for mixed convection with large Richardson numbers

Sayed Mahdi Naghavi, Ghanbar Ali Sheikhzadeh

The purpose of this study is the identification of the best method to apply the body force in the lattice Boltzmann method (LBM). In the simulation of mixed convection, especially…

Gramian solutions and solitonic interactions of a (2+1)-dimensional Broer–Kaup–Kupershmidt system for the shallow water

Liu-Qing Li, Yi-Tian Gao, Xin Yu, Gao-Fu Deng, Cui-Cui Ding

This paper aims to study the Gramian solutions and solitonic interactions of a (2 + 1)-dimensional Broer–Kaup–Kupershmidt (BKK) system, which models the nonlinear and dispersive…

Heat transfer enhancement in microchannels using ribs and secondary flows

Karthikeyan Paramanandam, Venkatachalapathy S., Balamurugan Srinivasan

The purpose of this paper is to study the flow and heat transfer characteristics of microchannel heatsinks with ribs, cavities and secondary channels. The influence of length and…

Stagnation point flow of a micropolar fluid filled with hybrid nanoparticles by considering various base fluids and nanoparticle shape factors

Umair Khan, Aurang Zaib, Ioan Pop, Sakhinah Abu Bakar, Anuar Ishak

The boundary-layer analysis is required to reveal the fluid flow behavior in several industrial processes and enhance the products’ effectiveness. Therefore, this research aims to…

A new model of fuel spray shape at early stage of injection in a marine diesel engine

Joanna Grochowalska, Piotr Jaworski, Łukasz Jan Kapusta, Jerzy Kowalski

In the cylinders of a marine diesel engine, self-ignition occurs in a very short time after the fuel injection into the combustion chamber. Therefore, this paper aims to develop a…

An adaptive wavelet collocation method for the optimal heat source problem

Mahmood Khaksar-e Oshagh, Mostafa Abbaszadeh, Esmail Babolian, Hossein Pourbashash

This paper aims to propose a new adaptive numerical method to find more accurate numerical solution for the heat source optimal control problem (OCP).

Double rotations of cylinders on thermosolutal convection of a wavy porous medium inside a cavity mobilized by a nanofluid and impacted by a magnetic field

Abdelraheem M. Aly, Shreen El-Sapa

The purpose of this paper is to work out the magnetic forces on heat/mass transmission in a cavity filled with a nanofluid and wavy porous medium by applying the incompressible…

A comparative analysis on the single-phase and two-phase mixture models for calculation of ferrofluid convective heat transfer in the presence of a magnetic field: a numerical study

Hamed Jafari, Mohammad Goharkhah, Alireza Mahdavi Nejad

This paper aims to analyze the accuracy of the single and two-phase numerical methods for calculation of ferrofluid convective heat transfer in the presence of a magnetic field…

Interaction of mixed convection with non-gray gas radiation in a partially heated horizontal pipe: entropy generation analysis

Akram Mazgar, Khouloud Jarray, Fadhila Hajji, Fayçal Ben Nejma

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…

Convective drying performance of porous moist objects under turbulent flow conditions: effects of object shape and material

Seda Ozcan Coban, Fatih Selimefendigil, Hakan Oztop

The purpose of this paper is to examine the coupled heat and mass transport of different shaped porous moist objects in a rectangular channel under the effects of convective…

Numerical study on slip flow using the discrete unified gas-kinetic scheme

Wenqiang Guo, Guoxiang Hou, Yin Guan, Senyun Liu

This paper aims to explore the mechanism of the slip phenomenon at macro/micro scales, and analyze the effect of slip on fluid flow and heat transfer, to reduce drag and enhance…

Proper orthogonal decomposition Pascal polynomial-based method for solving Sobolev equation

Mehdi Dehghan, Baharak Hooshyarfarzin, Mostafa Abbaszadeh

This study aims to use the polynomial approximation method based on the Pascal polynomial basis for obtaining the numerical solutions of partial differential equations. Moreover…

Nanofluidic thermal-fluid transport in a split-driven porous system working under a magnetic environment

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

This study aims to focus on a thermo-fluid flow in a partially driven cavity (PDC) using Cu-water nanoliquid, magnetic field and porous substance. The cooling and sliding motion…