A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires
The objective of this paper is to compare the overall performance of two turbulence models used for the simulation of fire scenarios in ventilated tunnels. Two Reynolds Averaged Navier–Stokes turbulence models were used; the low-Re k–ω SST and the standard k–ε model with wall functions treatment. Co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2015-12-01
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| Series: | Cogent Engineering |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/23311916.2014.1000509 |
| _version_ | 1797763843734110208 |
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| author | Konstantinos G. Stokos Socrates I. Vrahliotis Theodora I. Pappou Sokrates Tsangaris |
| author_facet | Konstantinos G. Stokos Socrates I. Vrahliotis Theodora I. Pappou Sokrates Tsangaris |
| author_sort | Konstantinos G. Stokos |
| collection | DOAJ |
| description | The objective of this paper is to compare the overall performance of two turbulence models used for the simulation of fire scenarios in ventilated tunnels. Two Reynolds Averaged Navier–Stokes turbulence models were used; the low-Re k–ω SST and the standard k–ε model with wall functions treatment. Comparison was conducted on two different fire scenarios. The varied parameters were the heat release rate and the ventilation rate. Results predicted by the two turbulence models were also compared to the results produced from the commercial package Ansys Fluent. Quite faster simulations were performed using the k–ε turbulence model with wall functions and our findings, as to the basic characteristics of smoke movement, were in good agreement with Ansys Fluent ones. |
| first_indexed | 2024-03-12T19:47:09Z |
| format | Article |
| id | doaj.art-5f7a80a6ded54b5a839e14581202572b |
| institution | Directory Open Access Journal |
| issn | 2331-1916 |
| language | English |
| last_indexed | 2024-03-12T19:47:09Z |
| publishDate | 2015-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Engineering |
| spelling | doaj.art-5f7a80a6ded54b5a839e14581202572b2023-08-02T03:27:45ZengTaylor & Francis GroupCogent Engineering2331-19162015-12-012110.1080/23311916.2014.10005091000509A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel firesKonstantinos G. Stokos0Socrates I. Vrahliotis1Theodora I. Pappou2Sokrates Tsangaris3National Technical University of AthensNational Technical University of AthensFIDES DV-Partner Beratungs-und Vertiebs-GmbHNational Technical University of AthensThe objective of this paper is to compare the overall performance of two turbulence models used for the simulation of fire scenarios in ventilated tunnels. Two Reynolds Averaged Navier–Stokes turbulence models were used; the low-Re k–ω SST and the standard k–ε model with wall functions treatment. Comparison was conducted on two different fire scenarios. The varied parameters were the heat release rate and the ventilation rate. Results predicted by the two turbulence models were also compared to the results produced from the commercial package Ansys Fluent. Quite faster simulations were performed using the k–ε turbulence model with wall functions and our findings, as to the basic characteristics of smoke movement, were in good agreement with Ansys Fluent ones.http://dx.doi.org/10.1080/23311916.2014.1000509tunnel fireventilationturbulence models comparisonnumerical study |
| spellingShingle | Konstantinos G. Stokos Socrates I. Vrahliotis Theodora I. Pappou Sokrates Tsangaris A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires Cogent Engineering tunnel fire ventilation turbulence models comparison numerical study |
| title | A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires |
| title_full | A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires |
| title_fullStr | A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires |
| title_full_unstemmed | A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires |
| title_short | A comparative numerical study of turbulence models for the simulation of fire incidents: Application in ventilated tunnel fires |
| title_sort | comparative numerical study of turbulence models for the simulation of fire incidents application in ventilated tunnel fires |
| topic | tunnel fire ventilation turbulence models comparison numerical study |
| url | http://dx.doi.org/10.1080/23311916.2014.1000509 |
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