International Journal of Numerical Methods for Heat & Fluid Flow: Volume 33 Issue 12

Letter to the Editor: Thinking of the oceanic shallow water in the light of a (2+1)-dimensional generalized dispersive long-wave system related to HFF 33, 3272; 33, 965 and 32, 2282

Xin-Yi Gao

CFD-DEM coupled simulation of fluidized beds with improved lumped formulation for heat transfer

Lucilla Coelho de Almeida, Joao Americo Aguirre Oliveira Junior, Jian Su

This paper aims to present a novel approach for computing particle temperatures in simulations coupling computational fluid dynamics (CFD) and discrete element method (DEM) to…

Thermal radiation impact on heat and mass transfer analysis of nanofluids inside a cavity with gyrotactic microorganisms

P. Sudarsana Reddy, Paluru Sreedevi

Buongiorno’s type nanofluid mass and heat transport appearances inside a cavity filled with gyrotactic microorganisms by captivating thermal radiation is analyzed in the present…

CFD study of DNB in a hexagonal sub-assembly using MuSiG model

Nikesh Chowrasia, Subramani S.N., Harish Pothukuchi, B.S.V. Patnaik

Subcooled flow boiling phenomenon is characterized by coolant phase change in the vicinity of the heated wall. Although coolant phase change from liquid to vapour phase…

Methods for calculating aerodynamics inside high-speed railway tunnel lining cracks and predicating stress intensity factors

Yi-Kang Liu, Xin-Yuan Liu, E. Deng, Yi-Qing Ni, Huan Yue

This study aims to propose a series of numerical and surrogate models to investigate the aerodynamic pressure inside cracks in high-speed railway tunnel linings and to predict the…

Evaluation of dynamic correction of turbulence wall boundary conditions to simulate roughness effect in minichannel with rotating walls

Mohammadsadegh Pahlavanzadeh, Krzysztof Rusin, Wlodzimierz Wróblewski

The purpose of this study is an assessment of the existing roughness models to simulate the flow in the narrow gap between corotating and rough disks. A specific configuration of…

Performance analysis of a proton exchange membrane fuel cell with the stair arrangement of obstacles in the cathode channel

Nasser Baharlou-Houreh, Navid Masaeli, Ebrahim Afshari, Kazem Mohammadzadeh

This paper aims to investigate the effect of partially blocking the cathode channel with the stair arrangement of obstacles on the performance of a proton exchange membrane fuel…

An efficient gradient-enhanced kriging modeling method assisted by fast kriging for high-dimension problems

Youwei He, Kuan Tan, Chunming Fu, Jinliang Luo

The modeling cost of the gradient-enhanced kriging (GEK) method is prohibitive for high-dimensional problems. This study aims to develop an efficient modeling strategy for the GEK…

Numerical investigation of laminar heat transfer and fluid flow characteristics of Al2O3 nanofluid in a double tube heat exchanger

Ebrahim Tavousi, Noel Perera, Dominic Flynn, Reaz Hasan

The purpose of the study is to numerically investigate the characteristics of laminar heat transfer and fluid flow in a double tube heat exchanger (DTHE) using water-aluminum…

Dual solutions for general three-dimensional MHD boundary layer stagnation-point flow of hybrid nanofluid and heat transfer

Nurul Amira Zainal, Najiyah Safwa Khashi'ie, Iskandar Waini, Abdul Rahman Mohd Kasim, Roslinda Nazar, Ioan Pop

The evaluation of high thermal efficiency has actively highlighted the unique behaviour of hybrid nanofluid. Thus, the purpose of this paper is to emphasize the hybrid nanofluid’s…

Detailed investigation on thermal enhancement and mass transport in 3D flow of Carreau–Yasuda ternary and hybrid nanofluids using the finite element method

Shafia Rana, M. Nawaz, Sayer Obaid Alharbi

The purpose of this study is to analyze the transportation of heat and mass in three-dimensional (3D) shear rate-dependent viscous fluid. Thermal enhancement plays a significant…

Heat transfer and thermal efficiency enhancement using twisted tapes in sinusoidal wavy tubes with nanofluids: a numerical study

Mohammad Abbaszadeh, Mohammad Hossein Montazeri, Mojtaba Mirzaie

The purpose of the study is to propose a novel implementation of twisted tape in sinusoidal wavy-walled tubes to enhance the rate of heat transfer without compromising thermal…

Study on (3+1)-dimensional nonlocal Boussinesq equation: multiple soliton solutions

Abdul-Majid Wazwaz, Mansoor Alshehri, Samir A. El-Tantawy

This study aims to explore novel solitary wave solutions of a new (3 + 1)-dimensional nonlocal Boussinesq equation that illustrates nonlinear water dynamics.

Toward a simple and accurate Lagrangian-based error estimator for the BDF algorithms and adaptive time-stepping

Yazhou Wang, Dehong Luo, Xuelin Zhang, Zhitao Wang, Hui Chen, Xiaobo Zhang, Ningning Xie, Shengwei Mei, Xiaodai Xue, Tong Zhang, Kumar K. Tamma

The purpose of this paper is to design a simple and accurate a-posteriori Lagrangian-based error estimator is developed for the class of backward differentiation formula (BDF…

An alternate approach for optical solutions to the Date–Jimbo–Kashiwara–Miwa equation

Suheil Khuri

The aim of this study is to offer a contemporary approach for getting optical soliton and traveling wave solutions for the Date–Jimbo–Kashiwara–Miwa equation.

The influence of vehicle body roll motion on aerodynamic characteristics under crosswind condition

Huang Taiming, JingMao Ma, Li Zhang, Pan Hao, MingChen Feng, Wei Zeng, Changjie Ou

The purpose of this study is investigate the transient aerodynamic characteristics of high-speed vehicle with body roll motion under crosswind condition to improve aerodynamic…