Mathematical Modelling of Smoke-Filling Dynamics in Compartment Fires: A Two-Zone Approach.
In: Mathematical Modelling of Engineering Problems, Jg. 10 (2023-12-01), Heft 6, S. 1950-1960
Online
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Zugriff:
A novel two-zone model has been developed to predict the smoke layer height in compartments under pre-flashover fire conditions. This model is premised on the resolution of a mass balance in the upper layer of the compartment, employing the MQH correlation to approximate upper layer temperature. Furthermore, Zukoski's plume entrainment model is utilized to derive the mass flow rate of gases. This model aims to enhance existing methodologies for estimating smoke layer height, such as the widely recognized Zukoski's model, by accommodating vertical openings in the compartment walls and necessitating the resolution of a single differential equation. To validate its efficacy, the smoke layer heights generated by this model under varying fire scenarios were contrasted with those produced by a more intricate two-zone model (which resolves multiple differential equations) and with experimental data documented in the literature. Across all tested scenarios, the proposed model demonstrated considerable concordance with both aforementioned benchmarks. Notably, even in compartments with diverse useful areas and types of openings (window/door), the results procured using the proposed model displayed significant accuracy. [ABSTRACT FROM AUTHOR]
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Titel: |
Mathematical Modelling of Smoke-Filling Dynamics in Compartment Fires: A Two-Zone Approach.
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Autor/in / Beteiligte Person: | Reis, Jessica Kanopp dos ; Lemmertz, Calisa K. ; Centeno, Felipe Roman |
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Zeitschrift: | Mathematical Modelling of Engineering Problems, Jg. 10 (2023-12-01), Heft 6, S. 1950-1960 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 2369-0739 (print) |
DOI: | 10.18280/mmep.100604 |
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