International Journal of Numerical Methods for Heat & Fluid Flow: Volume 23 Issue 7

An enthalpy-based model of dendritic growth in a convecting binary alloy melt

Anirban Bhattacharya, Pradip Dutta

In the present work, a numerical method, based on the well established enthalpy technique, is developed to simulate the growth of binary alloy equiaxed dendrites in presence of…

Numerical analysis of the fin spacing effect on the horseshoe vortex system evolution in a two-rows finned-tube heat exchanger

Jules Voguelin Simo Tala, Serge Russeil, Daniel Bougeard, Jean-Luc Harion

In finned-tube heat exchangers, the array of tubes generates three-dimensional vortices at fin-tube junctions. Theses vortices known as horseshoe vortex (HSV) system are…

Melting heat transfer in a boundary layer flow of a second grade fluid under Soret and Dufour effects

T. Hayat, M. Hussain, M. Awais, S. Obaidat

The boundary layer flow and heat transfer of second grade fluid in a region of the stagnation point over a stretching surface has been examined. Thermal-diffusion (Dufour) and…

Effects of concavity level on heat loss, effectiveness and efficiency of a longitudinal fin exposed to natural convection and radiation

Erdem Cuce, Pinar Mert Cuce

The purpose of this paper is to investigate the effects of concavity level on performance parameters of a parabolic fin under the influences of natural convection and radiation…

An efficient method to obtain semi-analytical solutions of the nano boundary layers over stretching surfaces

Sima Samadpoor, Hadi Roohani Ghehsareh, Saeid Abbasbandy

The purpose of this paper is to obtain semi-analytical solutions of similarity solutions for the nano boundary layer flows with Navier boundary condition. The similarity solutions…

Homotopy Padé method for solving second-order one-dimensional telegraph equation

Azizeh Jabbari, Hossein Kheiri, Ahmet Yildirim

– The purpose of this paper is to obtain analytic solutions of telegraph equation by the homotopy Padé method.

Simulation of multiphase flows in porous media with gravitational effects using dominant wave method

M. Moshiri, M.T. Manzari, S.K. Hannani, A. Rasouli

In this paper, the flow of multiphase fluids in a one-dimensional homogeneous porous media involving the gravity effects is numerically studied using the dominant wave method. The…

Boundary layer flow of Maxwell fluid with power law heat flux and heat source

S.A. Shehzad, M. Qasim, T. Hayat, M. Sajid, S. Obaidat

– The purpose of this paper is to investigate the two-dimensional flow of Maxwell fluid with power law heat flux and heat source over a stretched surface.

Generalized Blasius problem for a viscoelastic fluid with viscous dissipation and suction/injection effects

Abdul Rahman Mohd Kasim, Zarith Sofiah Othman, Sharidan Shafie, Ioan Pop

The purpose of this paper is to study the Blasius flat plate with viscous dissipation in the presence of suction or injection effects in the boundary layer of a viscoelastic…

A polarization-based fast numerical method for computing the effective conductivity of composites

Vincent Monchiet, Guy Bonnet

The paper deals with the development of an improved fast Fourier transform (FFT)-based numerical method for computing the effective properties of composite conductors. The…