BREAKING NEWS: FABIG LUNCHTIME WEBINARS TO BE HELD EVERY 2 WEEKS WHILST MOST FABIG MEMBERS ARE IN LOCKDOWN

Lunchtime Webinar | A look back on developments in fire modelling - Bjørn Erling Vembe, DNV GL

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Live webinar
30
30 September 2020
13:00 - 14:00 (BST)
THIS WEBINAR
 
TOPIC:A look back on developments in fire modelling
SPEAKER:Bjørn Erling Vembe, DNV GL
DURATION:1 hour (45 min + Q&A)
TIME:13.00 to 14.00 (BST)
ABSTRACT:Mathematical modelling of fire stretches back to the 50s and 60s. The first models were based on dimensional analyses and correlations derived from experiments. The most famous are the Thomas correlation from the early 60s which is used for calculating flame heights from pool fires and later the Heskestad's plume correlation which gives the flow conditions in fire plumes. Later in the 70s when computers became available, compartment fire models and structural heat conduction models became tools available for engineers. The first compartment fires were typically calculated by one or two zone models where fire, mass and heat transfer between the zones were resolved by simple correlations. As data power increased, Computational Fluid Dynamics (CFD) codes have enabled us to directly calculate the flow fields and made it possible to analyse far more general and complex geometries. Simple correlations are still useful in relevant contexts. When simple correlations come short, it is quite common nowadays to use CFD codes to simulate fires. Today’s CFD tools for fire and explosions contain several sub-models for combustion, toxicity, soot and radiation. Furthermore, fire loads are integrated directly with structural response. CFD tools give the ability to evaluate fire risks, complete structural response including also the effect of passive fire protection (PFP), smoke spread and influence on human response and evacuation. The effect of active fire protection measures such as deluge, water monitors, curtains, etc. on both fires and structures can also be accounted for in CFD simulations.

FABIG WEBINAR SERIES

We will be organising lunchtime webinars every two weeks whilst working life remains disrupted by measures to combat the COVID-19 epidemic. Such measures either prohibit or make inadvisable large meetings such as our Technical Meetings. We are still looking for presentations for our series of lunchtime Webinars and as such, please do not hesitate to contact us at fabig@steel-sci.com if you or one of your colleagues would like to give a presentation at one of the forthcoming FABIG Lunchtime Webinars.
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