International Journal of Numerical Methods for Heat & Fluid Flow: Volume 11 Issue 1

Influence from numerical noise in the objective function for flow design optimisation

Jörgen Burman, B. Rikard Gebart

The overall pressure drop in an axisymmetric contraction is minimised using two different grid sizes. The transition region was parameterised with only two design variables to…

Coarse resolution large‐eddy simulation of turbulent channel flows

J. Shi, T T.G., J.J.R. Williams

In this paper two important factors – the subgrid model length scale and lateral resolution – are investigated for the large‐eddy simulation (LES) of high Reynolds number…

Fluid flow and heat transfer in gas jet quenching of a cylinder

U. Heck, U. Fritsching, K. Bauckhage

Heat treatment by quenching of individual metallic parts with multiple impinging gas jets is an environmentally friendly alternative to conventional surface hardening and…

Heat transfer in a micropolar fluid over a stretching sheet with viscous dissipation and internal heat generation

A.A. Mohammadein, Rama Subba Reddy Gorla

A boundary layer analysis is presented to study the heat transfer characteristics of a laminar micropolar fluid boundary layer over a linearly stretching, continuous surface. The…

Analysis of microchannel heat exchangers using FEM

G.A. Quadir, Anvar Mydin, K.N. Seetharamu

A finite element method is applied to evaluate the performance of microchannel heat exchangers that are used in electronic packaging. The present approach is validated against the…

Squish effect of piston crown on the turbulent heat transfer in reciprocating engine

Horng‐Wen Wu, Shiang‐Wuu Perng

An axisymmetric two‐dimensional computer program employing the Large Eddy Simulation (LES) and SIMPLE‐C method coupled with preconditioned conjugate gradient methods is applied to…