International Journal of Numerical Methods for Heat & Fluid Flow: Volume 30 Issue 1

Guest editorial

Mostafa Safdari Shadloo, Mohammad Reza Safaei, Manuel Hopp-Hirschler

A parallel high-order compressible flows solver with domain decomposition method in the generalized curvilinear coordinates system

Arthur Piquet, Boubakr Zebiri, Abdellah Hadjadj, Mostafa Safdari Shadloo

This paper aims to present the development of a highly parallel finite-difference computational fluid dynamics code in generalized curvilinear coordinates system. The objectives…

Turbulent flows in a spiral double-pipe heat exchanger: Optimal performance conditions using an enhanced genetic algorithm

Zhe Tian, Ali Abdollahi, Mahmoud Shariati, Atefeh Amindoust, Hossein Arasteh, Arash Karimipour, Marjan Goodarzi, Quang-Vu Bach

This paper aims to study the fluid flow and heat transfer through a spiral double-pipe heat exchanger. Nowadays using spiral double-pipe heat exchangers has become popular in…

Three-dimensional multiphase flow modeling of membrane humidifier for PEM fuel cell application

Seyed Ali Atyabi, Ebrahim Afshari, Mohammad Yaghoub Abdollahzadeh Jamalabadi

In this paper, a single module of cross-flow membrane humidifier is evaluated as a three-dimensional multiphase model. The purpose of this paper is to analyze the effect of volume…

Direct numerical simulations of laminar and transitional flows in diverging pipes

Dhanush Vittal Shenoy, Mostafa Safdari Shadloo, Jorge Peixinho, Abdellah Hadjadj

Fluid flows in pipes whose cross-sectional area are increasing in the stream-wise direction are prone to separation of the recirculation region. This paper aims to investigate…

Comparing ANSYS Fluent® and OpenFOAM® simulations of Geldart A, B and D bubbling fluidized bed hydrodynamics

Cesar Martin Venier, Andrés Reyes Urrutia, Juan Pablo Capossio, Jan Baeyens, Germán Mazza

The purpose of this study is to assess the performance of ANSYS Fluent^® and OpenFOAM^®, at their current state of development, to study the relevant bubbling fluidized bed (BFB…

Three-dimensional modelling of natural convection and entropy generation in a vertical cylinder under heterogeneous heat flux using nanofluids

Iman Rashidi, Lioua Kolsi, Goodarz Ahmadi, Omid Mahian, Somchai Wongwises, E. Abu-Nada

This study aims to investigate a three-dimensional computational modelling of free convection of Al₂O₃ water-based nanofluid in a cylindrical cavity under heterogeneous heat…

Two-step numerical simulation of the heat transfer from a flat plate to a swirling jet flow from a rotating pipe

Francisco-Javier Granados-Ortiz, Joaquin Ortega-Casanova, Choi-Hong Lai

Impinging jets have been widely studied, and the addition of swirl has been found to be beneficial to heat transfer. As there is no literature on Reynolds-averaged Navier Stokes…

Evaluation of MWCNT/ethylene glycol nanofluid flow in a parabolic trough collector with glass-glass absorber tube

Ab Kasaeian, Reza Daneshazarian, Fathollah Pourfayaz, Sahar Babaei, Mojgan Sheikhpour, Shima Nakhjavani

Because of its increased absorptance in fluid and reduced heat loss, direct absorption nanofluid (DANF) is receiving intense interest as an efficient way to harvest solar energy…

Study of horizontal axis tidal turbine performance and investigation on the optimum fixed pitch angle using CFD: A case study of Iran

Hoseyn A. Amiri, Rouzbeh Shafaghat, Rezvan Alamian, Seyed Mohamad Taheri, Mostafa Safdari Shadloo

The purpose of this paper is to design, investigate and optimize a horizontal axis tidal turbine (HATT) using computer-aided numerical simulation and computational fluid dynamics…

Numerical investigation of multiphase blood flow coupled with lumped parameter model of outflow

Bartlomiej Melka, Wojciech P. Adamczyk, Marek Rojczyk, Marcin L. Nowak, Maria Gracka, Andrzej J. Nowak, Adam Golda, Ryszard A. Bialecki, Ziemowit Ostrowski

The purpose of this paper is the application of the computational fluid dynamics model simulating the blood flow within the aorta of an eight-year-old patient with Coarctation of…

Thermal and mechanical design of reverting microchannels for cooling disk-shaped electronic parts using constructal theory

Reza Dadsetani, Mohammad Reza Salimpour, Mohammad Reza Tavakoli, Marjan Goodarzi, Enio Pedone Bandarra Filho

The purpose of this study is to study the simultaneous effect of embedded reverting microchannels on the cooling performance and mechanical strength of the electronic pieces.

Up-scaling transport in porous polymer membranes using asymptotic homogenization

Jörn Henning Matthies, Manuel Hopp-Hirschler, Sarah Uebele, Thomas Schiestel, Markus Osenberg, Ingo Manke, Ulrich Nieken

Efficient numerical assessment of performance is particularly important in digital material design of porous materials. This study aims to present an up-scaled approach to…

Numerical simulation of dissolution of solid particles in fluid flow using the SPH method

Amin Rahmat, Mostafa Barigou, Alessio Alexiadis

The purpose of this paper is to numerically study the dissolution of solid particles using the smoothed particle hydrodynamics (SPH) method.

A critical review on the applications of fluid-structure interaction in porous media

Khalil Khanafer, K. Vafai

This study aims to investigate a critical review on the applications of fluid-structure interaction (FSI) in porous media.

Numerical investigation of anguilliform locomotion by the SPH method

Amin Rahmat, Hossein Nasiri, Marjan Goodarzi, Ehsan Heidaryan

This paper aims to introduce a numerical investigation of aquatic locomotion using the smoothed particle hydrodynamics (SPH) method.

Efficiency assessment of using graphene nanoplatelets-silver/water nanofluids in microchannel heat sinks with different cross-sections for electronics cooling

Marjan Goodarzi, Iskander Tlili, Zhe Tian, Mohammad Reza Safaei

This study aims to model the nanofluid flow in microchannel heat sinks having the same length and hydraulic diameter but different cross-sections (circular, trapezoidal and…

Analytical considerations of thermal storage and interface evolution of a PCM with/without porous media

Huijin Xu, Yan Wang, Xingchao Han

Phase change energy storage is an important solution for overcoming human energy crisis. This study aims to present an evaluation for the thermal performances of a phase change…

LBM simulation of piezo fan in square enclosure

Mohammad Yaghoub Abdollahzadeh Jamalabadi

This paper aims to investigate the use of a piezo fan in an enclosure on wall heat transfer and thermal boundary layer profile in constant wall temperature situation.

Three dimensional numerical simulation of polymer electrolyte membrane fuel cell

Yeping Peng, Ghasem Bahrami, Hossein Khodadadi, Alireza Karimi, Ahmad Soleimani, Arash Karimipour, Sara Rostami

The purpose of this study is simulation of of polymer electrolyte membrane fuel cell. Proton-exchange membrane fuel cells are promising power sources for use in power plants and…

Hydrodynamic and thermal flow in nanochannel to study effects of roughness by estimation the atoms positions via MD method

Huawei Wu, Peyman Torkian, Amir Zarei, Iman Moradi, Arash Karimipour, Masoud Afrand

This paper aims to investigate atoms type and channel roughness effects on fluid behavior in nanochannel.