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International Journal of CFD Case Studies Volume 1

International Journal of CFD Case Studies Volume 1

This publication is a welcome and timely addition to the current CFD Journal literature focused on progress in algorithms and methodology, as it aims at presenting industrial views and experience in the current practical application of CFD. It is therefore representative of the evolution and state of the art of CFD in the 1990’s, where CFD is becoming a widely used tool in a large range of industrial areas.

The case studies presented in this first issue are representative of the many unanswered questions and problems associated with the industrial applications of CFD. In particular the critical questions of quality and trust of CFD results, range of validity of physical models, mesh dependence, required convergence levels and numerical scheme accuracy, are some of the essential issues to be dealt with it in the process of validation and certification of CFD tools. Gaining more reliability and quality assurance of CFD simulations is a major concern, as it will determine the future of industrial CFD. Providing guidelines and answers to some of the listed questions and problems is indeed of critical importance, and the present NAFEMS initiative is a worthwhile contribution towards the achievement of these objectives.

It is also not surprising that the development of appropriate guidelines for CFD quality assurance has been taken up by ERCOFTAC, (European Research Community On Flow, Turbulence And Combustion), the most active European network in this area, as a major objective for the next two years. The awareness of the importance of these issues has indeed led ERCOFTAC to launch a Special Interest Group (SIG) on ‘Quality and Trust in Industrial CFD’, under the chairmanship of Dr T. Hutton. Major objectives of this SIG, which relies on the active participation and contributes from industrial companies and CFD software vendors of most of the European countries, can be stated as follows:

  • Provide industrial CFD practitioners with the knowledge and guidance which will enable them to deploy currently available models of flow phenomena to predict engineering parameters of interest within trusted bounds.
  • Production of general CFD Best Practise Guidelines
  • Production of Application Procedures, documenting CFD calculations of a range of test cases, chosen for their industrial interest and carried out according to the Best Practise Guidelines.

It is clear that the NAFEMS International Journal on CFD Case Studies could become an important link within this European initiative.

Initiatives such as these should therefore contribute to the progressive transition from ‘qualitative’ CFD to ‘quantitative’ CFD in the industrial applications. This requires an increasing level of rigour in terms of error estimation and control, mesh (in)dependence, quantitative validation and evaluation of results. We express the hope that the NAFEMS International Journal on CFD Case Studies will extend these requirements to all its contributors in the future and we are pleased to congratulate NAFEMS for this initiative wishing the Journal much success.

Contents

Foreword by Professor C. Hirsch

Introduction

Modelling of Atmosphere Dispersion Near Buildings
R.C. Hall and I. R. Cowan

Mixing in a Ventilation System Tee Junction
S. J Graham

Installation and Viscosity Effects in Turbine Meters
A N. Neal and D. McEwen

Heat Transfer in Offshore Pipeline Bundles
A Mosquera, G. Paczkowski and J Brydon

CFD Study of a Steam Condenser
N. Rhodes and M. Swain

The Use of an Unstructured Adaptive Mesh Code to Perform Resolved Obstacle Computations for Confined E xplosion Hazards
P. Birkby, F.M. Sinclair, A.M Savill, R.S Cant and W.N.Dawes

Details for Authors Wishing to Submit a Case Study

NAFEMS CFD Cases Studies Outline


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About
P. J. Tucker

First Published - April 1998

Softback, 72 Pages