International Journal of Numerical Methods for Heat & Fluid Flow: Volume 28 Issue 2

Guest editorial

Yogendra Joshi, Nicola Massarotti, Perumal Nithiarasu

Three computational methods for analysing thermal airflow distributions in the cooling of data centres

Gregory Nicholas de Boer, Adam Johns, Nicolas Delbosc, Daniel Burdett, Morgan Tatchell-Evans, Jonathan Summers, Remi Baudot

This aim of this work is to investigate different modelling approaches for air-cooled data centres. The study employs three computational methods, which are based on finite…

Molecular dynamics simulation of oxygen transport characteristics in the electrolyte membrane of PEMFC

Mahiro Kato, Asegun Henry, Samuel Graham, Duc Hong Doan, Kazuyoshi Fushinobu

This paper aims to investigate the oxygen transport characteristics in the electrolyte membrane of proton exchange membrane fuel cell (PEMFC), in particular, the water content…

Suprachoroidal shunts for treatment of glaucoma: A comparison based on numerical simulations

Alessandro Mauro, Mario R. Romano, Vito Romano, P. Nithiarasu

The purpose of this paper is to compare the fluid dynamic performance of two Aqueous Humor (AH) ocular drainage devices, the SOLX® Gold Micro Shunt (GMS) and the novel Silicon…

State estimation problems in PRF-shift magnetic resonance thermometry

César Pacheco, Helcio R.B. Orlande, Marcelo Colaco, George S. Dulikravich

The purpose of this paper is to apply the Steady State Kalman Filter for temperature measurements of tissues via magnetic resonance thermometry. Instead of using classical direct…

Two-phase explicit CBS procedure for compressible viscous flow transport in porous materials

Gino Cortellessa, Fausto Arpino, Simona Di Fraia, Mauro Scungio

In this work, a new two-phase version of the finite element-based Artificial Compressibility (AC) Characteristic-Based Split (CBS) algorithm is developed and applied for the first…

Simulation of a macrosegregation benchmark with a meshless diffuse approximate method

Vanja Hatić, Boštjan Mavrič, Božidar Šarler

The purpose of this paper is to simulate a macrosegregation solidification benchmark by a meshless diffuse approximate method. The benchmark represents solidification of Al 4.5 wt…

Rack level transient CFD modeling of data center

Yogesh Fulpagare, Yogendra Joshi, Atul Bhargav

The paper aims to capture the rack-level thermal dynamics in data center. It proposes the rack-level response experiments as well as transient Computational Fluid Dynamics (CFD…

Numerical analysis of compact plate-fin heat exchangers for aerospace applications

Ranganayakulu Chennu

The purpose of this study is to find the thermo-hydraulic performances of compact heat exchangers (CHE’s), which are strongly depending upon the prediction of performance of…

Biomass pyrolysis modeling of systems at laboratory scale with experimental validation

Stefano Cordiner, Alessandro Manni, Vincenzo Mulone, Vittorio Rocco

Thermochemical conversion processes are one of the possible solutions for the flexible production of electric and thermal power from biomass. The pyrolysis degradation process…

Efficient automatic discrete adjoint sensitivity computation for topology optimization – heat conduction applications

Ajay Vadakkepatt, Sanjay R. Mathur, Jayathi Y. Murthy

Topology optimization is a method used for developing optimized geometric designs by distributing material pixels in a given design space that maximizes a chosen quantity of…

Modelling electro-osmotic flow in porous media: a review

Simona Di Fraia, Nicola Massarotti, P. Nithiarasu

This paper aims to provide a comprehensive literature review on modelling electro-osmotic flow in porous media.

Schlieren and Mie scattering techniques for the ECN “spray G” characterization and 3D CFD model validation

Daniele Piazzullo, Michela Costa, Luigi Allocca, Alessandro Montanaro, Vittorio Rocco

This paper aims to study the heat transfer phenomenon occurring between heated walls and impinging fuel, showing the strict relationship between cooling effect after impingement…