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Naslov:Predicting the total wall time of CFD simulations of single-compartment fires
Avtorji:ID Veit, Martin (Avtor)
ID Lucherini, Andrea (Avtor)
ID Maragkos, Georgios (Avtor)
ID Merci, Bart (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://iopscience.iop.org/article/10.1088/1742-6596/2885/1/012100/pdf
 
.pdf PDF - Predstavitvena datoteka, prenos (1,21 MB)
MD5: 3ED3CCD6506D89A52FD0DC8C162843A2
 
Jezik:Angleški jezik
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:The total wall time is often difficult to predict a priori in compartment fire simulations due to dynamic phenomena that can occur, e.g., flame extinction. The wall time is dependent on multiple physical factors in the simulation, along with simulation factors and the system used to compute the model. Specifically, the CFL number of a simulation is highly influential to the wall time, as this restricts the time step size. In this paper, the prediction of the total wall time for a single-compartment fire is investigated considering varying fire heat release rates and compartment ventilation factors. It is shown that an increasing heat release rate increases the total wall time due to higher velocities inside the compartment. Furthermore, when the compartment becomes under-ventilated, the wall time becomes more difficult to predict early on in the simulation, as steady state conditions are reached later, compared to well-ventilated cases. The time at which the wall time can be accurately predicted changed from a few physical seconds in the well-ventilated case, to up to 60 physical seconds for the under-ventilated case.
Ključne besede:simulations, computational fluid dynamics, fire dynamics simulator, wall time
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.11.2024
Založnik:Institute of Physics Publishing
Leto izida:2024
Št. strani:Str. 1-6
PID:20.500.12556/DiRROS-21074 Novo okno
UDK:53
ISSN pri članku:1742-6596
DOI:10.1088/1742-6596/2885/1/012100 Novo okno
COBISS.SI-ID:219028227 Novo okno
Avtorske pravice:© authors, 2024
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 13. 12. 2024; Št. prispevka: 012100;
Datum objave v DiRROS:19.12.2024
Število ogledov:196
Število prenosov:106
Metapodatki:XML DC-XML DC-RDF
:
VEIT, Martin, LUCHERINI, Andrea, MARAGKOS, Georgios in MERCI, Bart, 2024, Predicting the total wall time of CFD simulations of single-compartment fires. V : 4th European Symposium on Fire Safety Science [na spletu]. Objavljeni znanstveni prispevek na konferenci. Institute of Physics Publishing. 2024. p. 1–6. [Dostopano 9 april 2025]. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=21074
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Gradivo je del zbornika

Naslov:4th European Symposium on Fire Safety Science
COBISS.SI-ID:219018755 Novo okno

Gradivo je del revije

Naslov:Journal of physics : Conference series
Založnik:Institute of Physics Publishing
ISSN:1742-6596
COBISS.SI-ID:2035044 Novo okno

Gradivo je financirano iz projekta

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:952395
Naslov:Fire-safe Sustainable Built Environment
Akronim:FRISSBE

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
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Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:simulacije, računalniška dinamika tekočin, simulator požarne dinamike, stenski čas


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