International Journal of Numerical Methods for Heat & Fluid Flow: Volume 32 Issue 8

Joule heating in squeezed flow of hybrid nanomaterial via FDM with Cattaneo–Christov (C–C) heat flux

Khursheed Muhammad, Tasawar Hayat, Bashir Ahmad

This study aims to explore the combined impacts of velocity and thermal slips on hybrid nanomaterial (GO+Ag+kerosene oil) bounded between two parallel infinite walls (plates)…

New thermal-hydraulic correlations for printed circuit heat exchangers (PCHEs) with zigzag channels under high Reynolds numbers

Carolina P. Naveira-Cotta, Jian Su, Paulo Lucena Kreppel Paes, Philippe R. Egmont, Rodrigo P.M. Moreira, Gabriel Caetano G.R. da Silva, André Sampaio Monteiro

The purpose of this paper is to investigate the impact of semi-circular zigzag-channel printed circuit heat exchanger (PCHE) design parameters on heat transfer and pressure drop…

A study of a modified nonlinear dynamical system with fractal-fractional derivative

Sunil Kumar, R.P. Chauhan, Shaher Momani, Samir Hadid

This paper aims to study the complex behavior of a dynamical system using fractional and fractal-fractional (FF) derivative operators. The non-classical derivatives are extremely…

Unsteady stagnation point flow past a permeable stretching/shrinking Riga plate in Al2O3-Cu/H2O hybrid nanofluid with thermal radiation

Nurul Amira Zainal, Roslinda Nazar, Kohilavani Naganthran, Ioan Pop

The investigation of fluid flow and heat transfer is incredibly significant in the present era, particularly in the engineering and manufacturing industries. Hence, this study…

Optimisation of porous slab parameters for jet-impingement microchannel heat sink performance enhancement

Jyoti Pandey, Mohd. Zahid Ansari, Afzal Husain

Porous media can provide excellent performance in thermal energy transport applications. This study aims to optimise the square porous slabs (placed in the middle of the channel…

Fully-developed laminar flow in trapezoidal ducts with rounded corners: a numerical solution and case study

Mohammed S. Ismail, Mohamed R. Berber, Ziyad A. Alrowaili, Mohamed Pourkashanian

This paper aims to numerically solve fully developed laminar flow in trapezoidal ducts with rounded corners which result following forming processes.

Study on the prediction method and the flow characteristics of gas-liquid two-phase flow patterns in the suction chamber

Chunlei Shao, Ning Bao, Sheng Wang, Jianfeng Zhou

The purpose of this paper is to propose a prediction method of gas-liquid two-phase flow patterns and reveal the flow characteristics in the suction chamber of a centrifugal pump.

3rd and 11th orders of accuracy of ‘linear’ and ‘quadratic’ elements for Poisson equation with irregular interfaces on Cartesian meshes

Alexander Idesman, Bikash Dey

The purpose of this paper is as follows: to significantly reduce the computation time (by a factor of 1,000 and more) compared to known numerical techniques for real-world…

Pressure drop and heat transfer characteristics in 60° Chevron plate heat exchanger using Al2O3, GNP and MWCNT nanofluids

Shiva Singh, Subrata Kumar Ghosh

The study aims to use nanofluids as coolants for improving heat transfer peculiarities of plate heat exchangers (PHE). The experimental and numerical investigations are thoroughly…

The effect of porosity and number of unit cell on applicability of volume average approach in closed cell porous media

Chunyang Wang, Xinghua Zheng, Ting Zhang, Haisheng Chen, Moghtada Mobedi

The purpose of this study is to investigate the applicability of volume average which is extensively used for analyzing the heat and fluid flow (both for single-phase and…

Off-centered stagnation point flow of an experimental-based hybrid nanofluid impinging to a spinning disk with low to high non-alignments

Saeed Dinarvand, Alireza Mahdavi Nejad

The purpose of this study is to model and solve numerically the three-dimensional off-centered stagnation point flow and heat transfer of magnesium oxide–silver/water hybrid…

Enhancing turbulence: a potential strategy for drag reduction based on ground transportation systems (GTS) model

Xiaolong Yang, Zhuangzhi Liu, Yu Hu

The purpose of this paper is to investigate the mechanism and performance of a potential strategy, which is to enhance turbulence to carry out drag reduction for heavy trucks.

Heat transfer within linear Fresnel unit using parabolic reflector

Z. Ebrahimpour, Seyyed Ali Farshad, M. Sheikholeslami

This paper scrutinizes exergy loss and hydrothermal analysis of Linear Fresnel Reflector (LFR) unit by means of FLUENT. Several mirrors were used to guide the solar radiation…

Coupling of BGK lattice Boltzmann method and experimental rheological/thermal behavior of Al2O3–oil nanolubricant for modeling of a finned thermal storage

Muhammad Aqeel Ashraf, Zhenling Liu, Emad Hasani Malekshah, Lioua Kolsi, Ahmed Kadhim Hussein

The purpose of the present work is to investigate the hydrodynamic and thermal performance of a thermal storage based on the numerical and experimental approaches using the…

On a reduced-order model-based optimization of rotor electro-thermal anti-icing systems

Adam Targui, Wagdi George Habashi

Responsible for lift generation, the helicopter rotor is an essential component to protect against ice accretion. As rotorcraft present a smaller wing cross-section and a lower…