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Modelling of two-phase release dispersion for hazard assessment

Ziel

To provide a computer code for the prediction of species concentrations downwind of accidental releases of hazardous fluids.

The project concerns the quantitative prediction of species concentrations downwind of accidental releases of hazardous fluids and the development of a practical tool for routine hazard assessments.

The work will involve the following stages.
Development of the conservation equations. Setting up of a general framework to handle chemical reactions and generation of new species.
Experiments on aerosol and pool formation from jet and puff releases. Analysis of the experiments and definition of the procedure to compute the source terms and/or the initial conditions.
Assessment of existing data and recommendation of closure relationships for entrainment of air into the plume or cloud as well as of profile functions (distribution funtions) to account for turbulent diffusion.
Development of models for droplet formation including initial size distribution. Recommendation for mass transfer coefficients on the liquid and gas side based on existing data.
Integration of the models and conservation equations including material properties into a closed form model with initial conditions derived from experiments on inertial expansion of jets and clouds.
Development of numerical methods to result in large time steps (ie incorparation of large degree of implicitness using either Newton-Raphson or 2-step methods).
Packaging of the model and its numerical solution into a user friendly computer code with graphics.
Comparison of the computer code with experimental results on large scale heavy gas (Thorney Island), ammonia (Desert Tortoise) and hydrogen fluoride (Goldfish series) experiments.
Documentation of the computer programme and validation with experiments, including source terms and initial conditions.

Wissenschaftliches Gebiet

Programm/Programme

Thema/Themen

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Aufforderung zur Vorschlagseinreichung

Data not available

Finanzierungsplan

CSC - Cost-sharing contracts

Koordinator

CISE - Centro Informazioni Studi ed Esperienze SpA
EU-Beitrag
Keine Daten
Adresse
Via Reggio Emilia 39
20090 Segrate Milano
Italien

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Gesamtkosten
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Beteiligte (3)

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Letzte Aktualisierung: 10 März 2023

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Permalink: https://cordis.europa.eu/project/id/STEP0116/de

European Union, 2024