Comparison of various CFD solvers using experimental data for the validation of a tunnel fire scenario

Daniel Fruhwirt; Peter-Johann Sturm; Patrik Fößleitner

Comparison of various CFD solvers using experimental data for the validation of a tunnel fire scenario

Daniel Fruhwirt^*, Peter-Johann Sturm, Patrik Fößleitner

^*Corresponding author for this work

Institute of Thermodynamics and Sustainable Propulsion Systems (3130)
FVT - Forschungsgesellschaft für Verbrennungskraftmaschinen und Thermodynamik m.b.H. (98630)

Research output: Contribution to conference › Paper › peer-review

Abstract

Available data from full scale fire tests were used for the validation of two different CFD solvers. These solvers were tested and compared against each other with the aim of deriving a 3D CFD model that is set up as simple as possible to reduce the computational effort, but still provides sufficient accuracy for a valid prediction of smoke propagation in tunnels. The tested solvers are Fire Dynamics Simulator (FDS) and CONVERGE. While FDS is a widely used tool for numerical studies on tunnel fires, CONVERGE is widely used in several reactive-flow applications, such as internal combustion engines and gas turbines. However, the simulation of the Koralm tunnel fire tests showed that both CFD
codes are reliable and provided accurate results. Nevertheless, there are
differences in terms of modeling, in the computational effort as well as in handling the solvers.

Original language	English
Publication status	Accepted/In press - 27 Sept 2022
Event	19th International Symposium on Aerodynamics, Ventilation & Fires in Tunnels: ISAVFT 2022 - Brigthon, United Kingdom Duration: 28 Sept 2022 → 30 Sept 2022 https://www.eventsforce.net/bhr/frontend/reg/thome.csp?pageID=49056&eventID=135&CSPCHD=000004000000F1ShMuOdH6axGOvdCseeG5SB$pwz4De$0LSZOj

Conference

Conference	19th International Symposium on Aerodynamics, Ventilation & Fires in Tunnels
Abbreviated title	ISAVFT 2022
Country/Territory	United Kingdom
Period	28/09/22 → 30/09/22
Internet address	https://www.eventsforce.net/bhr/frontend/reg/thome.csp?pageID=49056&eventID=135&CSPCHD=000004000000F1ShMuOdH6axGOvdCseeG5SB$pwz4De$0LSZOj

Keywords

tunnel fire
CFD
Fire Dynamics Simulator
Convergent CFD

Comparison of various CFD solvers using experimental data for the validation of a tunnel fire scenari
Daniel Fruhwirt (Speaker)
29 Sept 2022
Activity: Talk or presentation › Talk at conference or symposium › Science to science

Cite this

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title = "Comparison of various CFD solvers using experimental data for the validation of a tunnel fire scenario",

abstract = "Available data from full scale fire tests were used for the validation of two different CFD solvers. These solvers were tested and compared against each other with the aim of deriving a 3D CFD model that is set up as simple as possible to reduce the computational effort, but still provides sufficient accuracy for a valid prediction of smoke propagation in tunnels. The tested solvers are Fire Dynamics Simulator (FDS) and CONVERGE. While FDS is a widely used tool for numerical studies on tunnel fires, CONVERGE is widely used in several reactive-flow applications, such as internal combustion engines and gas turbines. However, the simulation of the Koralm tunnel fire tests showed that both CFDcodes are reliable and provided accurate results. Nevertheless, there are differences in terms of modeling, in the computational effort as well as in handling the solvers.",

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url = "https://www.eventsforce.net/bhr/frontend/reg/thome.csp?pageID=49056&eventID=135&CSPCHD=000004000000F1ShMuOdH6axGOvdCseeG5SB$pwz4De$0LSZOj",

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AU - Fruhwirt, Daniel

AU - Sturm, Peter-Johann

AU - Fößleitner, Patrik

PY - 2022/9/27

Y1 - 2022/9/27

N2 - Available data from full scale fire tests were used for the validation of two different CFD solvers. These solvers were tested and compared against each other with the aim of deriving a 3D CFD model that is set up as simple as possible to reduce the computational effort, but still provides sufficient accuracy for a valid prediction of smoke propagation in tunnels. The tested solvers are Fire Dynamics Simulator (FDS) and CONVERGE. While FDS is a widely used tool for numerical studies on tunnel fires, CONVERGE is widely used in several reactive-flow applications, such as internal combustion engines and gas turbines. However, the simulation of the Koralm tunnel fire tests showed that both CFDcodes are reliable and provided accurate results. Nevertheless, there are differences in terms of modeling, in the computational effort as well as in handling the solvers.

AB - Available data from full scale fire tests were used for the validation of two different CFD solvers. These solvers were tested and compared against each other with the aim of deriving a 3D CFD model that is set up as simple as possible to reduce the computational effort, but still provides sufficient accuracy for a valid prediction of smoke propagation in tunnels. The tested solvers are Fire Dynamics Simulator (FDS) and CONVERGE. While FDS is a widely used tool for numerical studies on tunnel fires, CONVERGE is widely used in several reactive-flow applications, such as internal combustion engines and gas turbines. However, the simulation of the Koralm tunnel fire tests showed that both CFDcodes are reliable and provided accurate results. Nevertheless, there are differences in terms of modeling, in the computational effort as well as in handling the solvers.

KW - tunnel fire

KW - CFD

KW - Fire Dynamics Simulator

KW - Convergent CFD

M3 - Paper

T2 - 19th International Symposium on Aerodynamics, Ventilation & Fires in Tunnels

Y2 - 28 September 2022 through 30 September 2022

ER -

Comparison of various CFD solvers using experimental data for the validation of a tunnel fire scenario

Abstract

Conference

Keywords

Activities

Comparison of various CFD solvers using experimental data for the validation of a tunnel fire scenari

Cite this