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Scientific model evaluation of dense gas dispersion models

Objective

To carry out a Scientific Model Evaluation of all dense gas dispersion models currently in use in Europe.


Any mathematical representation of the complex processes associated with the dispersion of dense gases in the atmospheric boundary layer, including the effects of aerosols, obstacles and variable terrain, involves making assumptions and usually the representation is only valid over a limited parameter range. Questions then immediately arise as to the suitability of a dense gas dispersion (DGD) model to a particular flow scenario. Are the relevant physical processes included and, if so, is the representation correct? Are the approximations reasonable? Is the parameter range appropriate? Has the model been validated, and for what conditions?
A Scientific Model Evaluation (SME) is an objective measure of whether a particular model is suitable for the particular use made of it. In this project a protocol for an SME of DGD models will be developed, an SME of all current DGD models in Europe will be carried out, using the protocol, with particular emphasis on the complex effects of aerosol formation, complex terrain and obstacles, and finally a methodology for Scientific Model Evaluation will be produced.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Health and Safety Executive (HSE)
Address
Broad Lane
S3 7HQ Sheffield
United Kingdom

Participants (12)

BG PLC
United Kingdom
Address
Ashby Road
LE11 3GR Loughborough - Leicestershire
CAMBRIDGE ENVIRONMENTAL RESEARCH CONSULTANTS LTD
United Kingdom
Address
Kings Parade 3
CB2 1SJ Cambridge
Commission of the European Communities
Italy
Address
Via E. Fermi 1
21020 Ispra - Varese
Det Norske Veritas A/S
Norway
Address
1,Veritasveien 1
1322 Høvik
Electricité de France (EDF)
France
Address
6 Quai Watier
78401 Chatou
FINNISH METEOROLOGICAL INSTITUTE
Finland
Address
20 E,sahaajankatu 20 E
00810 Helsinki
Gaz de France (GDF)
France
Address
Quai Emile Cormerais
44024 Nantes
NATIONAL CENTRE FOR SCIENTIFIC RESEARCH 'DEMOKRITOS'
Greece
Address
Terma Patriarchou Grigoriou
15310 Athens
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek
Netherlands
Address
501,Laan Van Westenenk
7300 AH Apeldoorn
RISOE NATIONAL LABORATORY
Denmark
Address
Frederiksborgvej 399
4000 Roskilde
UNIVERSITY OF HAMBURG
Germany
Address
Bundesstrasse 55
20146 Hamburg
W S Atkins Planning and Management Consultants Ltd
United Kingdom
Address
Woodcote Grove Ashley Road
KT18 5BW Epsom