International Journal of Numerical Methods for Heat & Fluid Flow: Volume 26 Issue 6

A novel extension of GS4-1 time integrator to fluid dynamics type non-linear problems with illustrations to Burgers’ equation

K K Tamma, Siti Ujila Masuri

The purpose of this paper is to describe how a generalized single-system-single-solve (GS4-1) computational framework, previously developed for linear first order transient…

A two-dimensional simulation of solidification processes in materials with thermo-dependent properties using XFEM

Pawel Stapór

The purpose of this paper is to carry out a finite element simulation of a physically non-linear phase change problem in a two-dimensional space without adaptive remeshing or…

Numerical analysis of combined buoyancy-induced and pressure-driven smoke flow in complex vertical shafts during building fires

Yanqiu Chen, Xiaodong Zhou, Taolin Zhang, Zhijian Fu, Yuqi Hu, Lizhong Yang

– The purpose of this paper is to study the behavior of smoke flow in building fires and optimize the design of smoke control systems.

Gaussons: Solitons of the (2+1)-dimensional and the (3+1)-dimensional logarithmic Boussinesq equations

Abdul-Majid Wazwaz

The purpose of this paper is to concern with a reliable treatment of the (2+1)-dimensional and the (3+1)-dimensional logarithmic Boussinesq equations (BEs). The author uses the…

Influences of fuel concentration, fuel volume, initial temperature, and initial pressure on flame propagation and flameproof distance of methane-air deflagrations

Bingyou Jiang, Zegong Liu, Shulei Shi, Feng Cai, Jian Liu, Mingyun Tang, Baiquan Lin

The purpose of this paper is to understand a flameproof distance necessary to avoid the flame harms to underground personnel which may have great significance to the safety of…

A new formulation and analysis of a collapsing bubble with different content in a liquid induced during acoustic cavitation

Ali Alhelfi, Bengt Ake Sunden

The purpose of this paper is to present numerical investigation of the gas/vapor bubble dynamics under the influence of an ultrasonic field to give a more comprehensive…

Numerical solutions of non-alignment stagnation-point flow and heat transfer over a stretching/shrinking surface in a nanofluid

Ioan Pop, Kohi Naganthran, Roslinda Nazar

The purpose of this paper is to analyse numerically the steady stagnation-point flow of a viscous and incompressible fluid over continuously non-aligned stretching or shrinking…

Effects of gap size for parallel 45 degree angled rib turbulators

Jongmyung Park, Samgyu Park, Phillip M Ligrani

Turbulent air flows within a channel with 45° angled rib turbulators on the top and bottom walls are numerically predicted using the numerical code. For the predictions, a v2-f…

Numerical solution of MHD Sisko fluid over a stretching cylinder and heat transfer analysis

M.Y. Malik, Arif Hussain, T. Salahuddin, M. Awais

– The purpose of this paper is to examine the Sisko fluid model over a stretching cylinder with heat transfer and magnetohydrodynamics.

Effects of hall and ion slip on MHD peristaltic flow of Jeffrey fluid in a non-uniform rectangular duct

R. Ellahi, M. M. Bhatti, Ioan Pop

The purpose of this paper is to theoretically study the problem of the peristaltic flow of Jeffrey fluid in a non-uniform rectangular duct under the effects of Hall and ion slip…

Effect of airfoil leading edge waviness on flow structures and noise

Man Zhang, Abdelkader Frendi

The tubercles at the leading edge of Humpback Whale flippers have been shown to increase aerodynamic efficiency. The purpose of this paper is to compute the flow structures and…

Study on reconstruction and prediction methods of pressure field on blade surfaces for oil-filling process in a hydrodynamic retarder

Hongbin Mu, Wei Wei, Alexandrina Untaroiu, Qingdong Yan

Traditional three-dimensional numerical methods require a long time for transient computational fluid dynamics simulation on oil-filling process of hydrodynamic braking. The…

Numerical simulation and experiment validation of level-pour direct-chill casting of A390 alloy hollow billets under different feeding schemes

Kesheng Zuo, Haitao Zhang, Ke Qin, Jianzhong Cui

The purpose of this paper is to study the effect of feeding scheme on melt flow and temperature field during the steady-state of level-pour direct-chill (DC) casting of A390 alloy…

Double MRT thermal lattice Boltzmann method for simulating natural convection of low Prandtl number fluids

Zheng Li, Mo Yang, Yuwen Zhang

The purpose of this paper is to test an efficiency algorithm based on lattice Boltzmann method (LBM) and using it to analyze two-dimensional natural convection with low Prandtl…

Effect of rotating cylinder on heat transfer in a differentially heated rectangular enclosure filled with power law non-Newtonian fluid

Atta Sojoudi, Marzieh Khezerloo, Suvash C Saha, Yuantong Gu

The purpose of this paper is to numerically investigate two dimensional steady state convective heat transfer in a differentially heated square cavity with constant temperatures…

MHD natural convection flow past an impulsively started infinite vertical porous plate with Newtonian heating in the presence of radiation

Marneni Narahari, M Kamran

The purpose of this paper is to investigate the effects of thermal radiation and viscous dissipation on steady natural convection flow of a viscous incompressible fluid along a…

Heat transfer and friction factor in a dimple-pin fin wedge duct with various dimple depth and converging angle

Lei Luo, Chenglong Wang, Lei Wang, Bengt Ake Sunden, Songtao Wang

The dimple is adopted into a pin fin wedge duct which is widely used in modern gas turbine vane cooling structure trailing edge region. The purpose of this paper is to study the…

Interaction of surface radiation with natural convection in tall vertical cavities heated by a linear heat flux

Lahcen El Moutaouakil, Zaki Zrikem, Abdelhalim Abdelbaki

A detailed numerical study is conducted on the effect of surface radiation on laminar natural convection in a tall vertical cavity filled with air. The cavity is heated and…