| 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 - Izvorni URL, za dostop obiščite https://iopscience.iop.org/article/10.1088/1742-6596/2885/1/012100/pdf
 PDF - Predstavitvena datoteka, prenos (1,21 MB)
MD5: 3ED3CCD6506D89A52FD0DC8C162843A2
|
|---|
| Jezik: | Angleški jezik |
|---|
| Tipologija: | 1.08 - Objavljeni znanstveni prispevek na konferenci |
|---|
| Organizacija: |  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  |
|---|
| UDK: | 53 |
|---|
| ISSN pri članku: | 1742-6596 |
|---|
| DOI: | 10.1088/1742-6596/2885/1/012100 |
|---|
| COBISS.SI-ID: | 219028227 |
|---|
| 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: | 30 |
|---|
| Število prenosov: | 11 |
|---|
| Metapodatki: |    |
|---|
|
:
|
Kopiraj citat |
|---|
| | | | Objavi na: |  |
|---|
Postavite miškin kazalec na naslov za izpis povzetka. Klik na naslov izpiše
podrobnosti ali sproži prenos. |
