International Journal of Numerical Methods for Heat & Fluid Flow: Volume 33 Issue 8

Experimental and numerical investigation of flow and thermal characteristics of aluminum block exchanger using surface-modified and recycled nanofluids

Berrak Gülmüş, Burak Muratçobanoğlu, Emre Mandev, Faraz Afshari

The purpose of this study is to numerically and experimentally survey the thermal efficiency of a block-type heat exchanger operated in different working conditions by using pure…

Computational analysis of a new biomimetic active ventilation paradigm for indoor spaces

Gil Marom, Shahar Grossbard, Moti Bodek, Eran Neuman, David Elad

Ventilation of indoor spaces is required for the delivery of fresh air rich in oxygen and the removal of carbon dioxide, pollutants and other hazardous substances. The COVID-19…

Simulation of predator–prey system with two-species, two chemicals and an additional chemotactic influence via direct meshless local Petrov–Galerkin method

Mostafa Abbaszadeh, AliReza Bagheri Salec, Afaq Salman Alwan

This paper aims to introduce a new numerical approach based on the local weak form and the Petrov–Galerkin idea to numerically simulation of a predator–prey system with…

Spatiotemporal velocities, aggregation, and false dispersion: numerical considerations for the modeling of colonial and motile harmful algae

Jackie Opfer, Miki Hondzo, V.R. Voller

The purpose of this study is to investigate the errors arising from the numerical treatment of model processes, paying particular attention to the impact of key system features…

Multiphase, three-dimensional PEM fuel cell numerical model with a variable cross-sectional area flow channel

Jinbei Tian, Mohammed S. Ismail, Derek Ingham, Kevin J. Hughes, Lin Ma, Mohamed Pourkashanian

This paper aims to investigate the impact of three different flow channel cross sections on the performance of the fuel cell.

Dynamical analysis of a rotating rigid body containing a viscous incompressible fluid

Ji-Huan He, T.S. Amer, W.S. Amer, H.F. Elkafly, A.A. Galal

The purpose of this paper is to study the dynamical properties of a rotating rigid body (RB) containing a viscous incompressible fluid.

Numerical study on heat and drag reduction by transpiration in hypersonic flow

Yi Pu Zhao, Haiming Huang, Qian Wu, Xinmeng Wang

The transpiration has been recognized as one of the most effective thermal protection methods for future hypersonic vehicles. To improve efficiency and safety, it is urgent to…

The search for an appropriate condensation model to simulate wet steam transonic flows

Esmail Lakzian, Mostafa Ramezani, Sima Shabani, Fahime Salmani, Miroslaw Majkut, Heuy Dong Kim

The purpose of this study is to model steam condensing flows through steam turbine blades and find the most suitable condensation model to predict the condensation phenomenon.

On the analysis of thermosolutal mixed convection in differentially heated and soluted geometries beyond rectangular

Samrat Hansda, Swapan K. Pandit

This paper aims to study the impact of convexity and concavity of the vertical borders on double-diffusive mixed convection. In addition, the study of entropy generation is…

Modified hexagonal pin fins for enhanced thermal-hydraulic performance of micro-pin fin heat sinks

Ahmad Reza Roozbehi, Mohammad Zabetian Targhi, Mohammad Mahdi Heyhat, Ala Khatibi

This numerical study aims to investigate the modification of the hexagonal pin fin geometry to enhance both the thermal and hydraulic performance of the copper micropin fin heat…

Inhomogeneous waves propagation in double-porosity thermoelastic media

Manjeet Kumar, Jai Bhagwan, Pradeep Kaswan, Xu Liu, Manjeet Kumari

The purpose of this study is to investigate the reflection of plane waves in a double-porosity (DP) thermoelastic medium.

A coupled domain–boundary type meshless method for phase-field modelling of dendritic solidification with the fluid flow

Tadej Dobravec, Boštjan Mavrič, Rizwan Zahoor, Božidar Šarler

This study aims to simulate the dendritic growth in Stokes flow by iteratively coupling a domain and boundary type meshless method.

An unconditionally energy-stable scheme for the convective heat transfer equation

Xiaoyu Liu, Suchuan Dong, Zhi Xie

This paper aims to present an unconditionally energy-stable scheme for approximating the convective heat transfer equation.

Thermal conductivity reconstruction method with application in a face milling operation

Everton Boos, Fermín S.V. Bazán, Vanda M. Luchesi

This paper aims to reconstruct the spatially varying orthotropic conductivity based on a two-dimensional inverse heat conduction problem described by a partial differential…

Uniform magnetic field impact on absolute versus convective onset of Darcy–Benard convection with horizontal throughflow

Mustafa Turkyilmazoglu

The onset of Darcy–Benard convection in a fluid-saturated porous layer within channeled walls can be through either the convectively amplified perturbations or absolutely unstable…