Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code

Eveliina Takasuo, Sergey Kudriakov

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Abstract

In the present study, the FLAME large-scale hydrogen combustion tests F-8 and F-22 performed at Sandia National Laboratories, USA, were simulated using the TONUS CFD code. In test F-8 a configuration without obstacles and no top venting was used. The objective of the calculation of test F-8 was to investigate the effect of two different boundary condition specifications at the test channel exit as well as the effect of mesh refinement. The difference between the tested boundary conditions was observed to be significant. The CREBCOM combustion model was used in the simulation and attention was paid at finding an appropriate model parameter K0 for the current test. Test F-22 which includes obstacles resulting in a 33% blockage ratio in the test channel was modeled by the CREBCOM and k-e turbulence model with Eddy Break-Up reaction kinetics. Both models were found to perform qualitatively well for both 2D and 3D models of the system. However, it was observed that the correlations presently available for the key parameter K0 of the CREBCOM model are not suitable for the FLAME tests. In test F-22, an additional challenge was provided by the unclear conditions near the exit of the channel and it was noticed that high local pressure peaks were formed near the obstacles in the channel.
Original languageEnglish
Title of host publicationSAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006
Subtitle of host publicationFinal Report
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages237-245
ISBN (Electronic)951-38-6887-7
ISBN (Print)951-38-6886-9
Publication statusPublished - 2006
MoE publication typeNot Eligible

Publication series

NameVTT Tiedotteita - Research Notes
PublisherVTT
Number2363
ISSN (Print)1235-0605
ISSN (Electronic)1455-0865

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Computational fluid dynamics
Hydrogen
Boundary conditions
Turbulence models
Reaction kinetics
Specifications

Cite this

Takasuo, E., & Kudriakov, S. (2006). Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code. In SAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006: Final Report (pp. 237-245). Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Research Notes, No. 2363
Takasuo, Eveliina ; Kudriakov, Sergey. / Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code. SAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006: Final Report. Espoo : VTT Technical Research Centre of Finland, 2006. pp. 237-245 (VTT Tiedotteita - Research Notes; No. 2363).
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Takasuo, E & Kudriakov, S 2006, Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code. in SAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006: Final Report. VTT Technical Research Centre of Finland, Espoo, VTT Tiedotteita - Research Notes, no. 2363, pp. 237-245.

Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code. / Takasuo, Eveliina; Kudriakov, Sergey.

SAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006: Final Report. Espoo : VTT Technical Research Centre of Finland, 2006. p. 237-245 (VTT Tiedotteita - Research Notes; No. 2363).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

TY - CHAP

T1 - Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code

AU - Takasuo, Eveliina

AU - Kudriakov, Sergey

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N2 - In the present study, the FLAME large-scale hydrogen combustion tests F-8 and F-22 performed at Sandia National Laboratories, USA, were simulated using the TONUS CFD code. In test F-8 a configuration without obstacles and no top venting was used. The objective of the calculation of test F-8 was to investigate the effect of two different boundary condition specifications at the test channel exit as well as the effect of mesh refinement. The difference between the tested boundary conditions was observed to be significant. The CREBCOM combustion model was used in the simulation and attention was paid at finding an appropriate model parameter K0 for the current test. Test F-22 which includes obstacles resulting in a 33% blockage ratio in the test channel was modeled by the CREBCOM and k-e turbulence model with Eddy Break-Up reaction kinetics. Both models were found to perform qualitatively well for both 2D and 3D models of the system. However, it was observed that the correlations presently available for the key parameter K0 of the CREBCOM model are not suitable for the FLAME tests. In test F-22, an additional challenge was provided by the unclear conditions near the exit of the channel and it was noticed that high local pressure peaks were formed near the obstacles in the channel.

AB - In the present study, the FLAME large-scale hydrogen combustion tests F-8 and F-22 performed at Sandia National Laboratories, USA, were simulated using the TONUS CFD code. In test F-8 a configuration without obstacles and no top venting was used. The objective of the calculation of test F-8 was to investigate the effect of two different boundary condition specifications at the test channel exit as well as the effect of mesh refinement. The difference between the tested boundary conditions was observed to be significant. The CREBCOM combustion model was used in the simulation and attention was paid at finding an appropriate model parameter K0 for the current test. Test F-22 which includes obstacles resulting in a 33% blockage ratio in the test channel was modeled by the CREBCOM and k-e turbulence model with Eddy Break-Up reaction kinetics. Both models were found to perform qualitatively well for both 2D and 3D models of the system. However, it was observed that the correlations presently available for the key parameter K0 of the CREBCOM model are not suitable for the FLAME tests. In test F-22, an additional challenge was provided by the unclear conditions near the exit of the channel and it was noticed that high local pressure peaks were formed near the obstacles in the channel.

M3 - Chapter or book article

SN - 951-38-6886-9

T3 - VTT Tiedotteita - Research Notes

SP - 237

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BT - SAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006

PB - VTT Technical Research Centre of Finland

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Takasuo E, Kudriakov S. Modeling of the FLAME hydrogen combustion tests F-8 and F-22 using TONUS CFD code. In SAFIR: The Finnish Research Programme on Nuclear Power Plant Safety 2003-2006: Final Report. Espoo: VTT Technical Research Centre of Finland. 2006. p. 237-245. (VTT Tiedotteita - Research Notes; No. 2363).