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Št. zadetkov: 3
Temperature and heat flux measurements from firebrand piles using color ratio pyrometry
Elijah Jerome Igweh, Stanislav Stoliarov I., Peter B. Sunderland
Izvirni znanstveni članek
Oznake: ognjeni žganci;toplotni tok;barvno razmerje;pirometrija;obdelava slik;firebrands;heat flux;color ratio pyrometry;pyrometry;image processing;
Glowing firebrands are a key ignition source in Wildland–Urban Interface fires, yet their thermal characteri- zation is challenging due to small size, irregular shape and sensitivity to environmental conditions. This study extends color ratio pyrometry from a single firebrand to firebrand piles to m ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Large eddy simulations of ventilation-limited compartment fire scenarios using a new dynamic flame extinction and re-ignition model in FDS
Georgios Maragkos, Jason Floyd, Andrea Lucherini, Alexander Snegirev, Elijah Jerome Igweh, Bart Merci
Izvirni znanstveni članek
Oznake: ugasnitev plamena;ponovno vžiganje plamena;požar v zaprtem prostoru;pogoji z nezadostnim prezračevanjem;CFD-modeliranje;FDS;flame extinction;flame re-ignition;under-ventilated conditions;CFD modelling;
Large eddy simulations of ventilation-controlled compartment fire scenarios conducted with FDS and new dynamic extinction and re-ignition models are presented. Flame extinction is modelled considering an enthalpy balance, based on a critical flame temperature, while re-ignition is allowed if the loc ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Development and application of a dynamic flame extinction and re-ignition model in FDS
Georgios Maragkos, Jason Floyd, Andrea Lucherini, Alexander Snegirev, Elijah Jerome Igweh, Bart Merci
Izvirni znanstveni članek
Oznake: ugasnitev plamena;ponovno vžiganje plamena;kritična temperatura plamena;hitrost deformacije;CFD-modeliranje;FDS;flame extinction;flame re-ignition;critical flame temperature;strain rate;CFD modelling;
A new dynamic flame extinction and re-ignition model that considers the local properties of the flow has been developed. The extinction model is based on the default enthalpy balance used by the Fire Dynamics Simulator (FDS) and employs a dynamic calculation of the critical flame temperature, 𝑇𝐶𝐹 ...
Leto: 2026 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Št. zadetkov: 3
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