International Journal of Numerical Methods for Heat & Fluid Flow: Volume 24 Issue 4

Numerical modeling of multiple length scales in thermal transport processes

Yogesh Jaluria

Multiple length and time scales arise in a wide variety of practical and fundamental problems. It is important to obtain accurate and validated numerical simulation results…

Computational fluid dynamics for thermal performance of a water-cooled minichannel heat sink with different chip arrangements

Gongnan Xie, Shian Li, Bengt Sunden, Weihong Zhang

With the development of electronic devices, including the desires of integration, miniaturization, high performance and the output power, cooling requirement of chips have been…

Application of adjustment calculus to the Trefftz method for calculating temperature field of the boiling liquid flowing in a minichannel

Sylwia Hożejowska, Robert Kaniowski, Mieczysùaw E. Poniewski

The purpose of this paper is to focus on the application of the Trefftz method to the calculation of the two-dimensional (2D) temperature field in the boiling refrigerant flow…

CFD modelling of air and oxy-coal combustion

Katarzyna Stęchły, Gabriel Wecel, Derek B. Ingham

The main goal of this work was the CFD analysis of air and oxy-coal combustion, in order to develop a validated with experimental measurements model of the combustion chamber…

Simulations of the PC boiler equipped with complex swirling burners

Wojciech P. Adamczyk, Pawel Kozolub, Gabriel Węcel, Arkadiusz Ryfa

The purpose of this paper is to show possible approaches which can be used for modeling complex flow phenomena caused by swirl burners combined with simulating coal combustion…

Large eddy simulation of a fully developed non-isothermal turbulent channel flow

Marek Jaszczur

The purpose of this paper is to numerically study heated channel flow using direct numerical simulation (DNS) and large eddy simulation (LES) method. Using different domain size…

A conjugate axisymmetric model of a high-pressure shock-tube facility

Mouna Lamnaouer, Alain Kassab, Eduardo Divo, Nolan Polley, Rodrigo Garza-Urquiza, Eric Petersen

An axisymmetric shock-tube model of the high-pressure shock-tube facility at the Texas A&M University has been developed. The shock tube is non-conventional with a non-uniform…

3-D periodic CFD model of the heating system in a coke oven battery

Jacek Smolka, Adam Fic, Andrzej J. Nowak, Ludwik Kosyrczyk

The purpose of this paper is to develop a 3-D fully transient numerical model of the heat and fluid flow associated with the chemical reactions that occur in the heating system of…

Unconditionally stable numerical scheme for natural convection problems

Bartosz Górecki, Jacek Szumbarski

Both the importance of the natural convection in science and engineering and the shortage of publications in the field of numerical features of time-stepping schemes for the…

Front tracking approach to modeling binary alloy solidification: Accuracy verification and the role of dendrite growth kinetics

Miroslaw Seredyński, Jerzy Banaszek

The purpose of this paper is to endorse the idea of using a special post-calculating front tracking (FT) procedure, along with the enthalpy-porosity front tracking (EP-FT) single…

Absorption line black body distribution function evaluated with proper orthogonal decomposition for mixture of CO2 and H2O

Gabriel Węcel, Ziemowit Ostrowski, Pawel Kozołub

The purpose of this paper is to present a new approach of evaluation of the absorption line black body distribution function (ALBDF) for a mixture of gases. Currently published…

Inverse thermal analysis of the neonatal brain cooling process

Joanna Łaszczyk, Anna Maczko, Wojciech Walas, Andrzej J. Nowak

This paper aims to test the inverse analysis, based on the standard least-square method, which will finally lead to find the appropriate parameters of modelling of the brain…

Selected papers presented during the Numerical Heat Transfer 2012 International Conference (NHT2012) held on 4-6 September 2012 in Wroclaw, Poland