Application of TONUS V2006 and FLUENT 6.2.16 CFD codes to ENACCEF hydrogen combustion tests
Takasuo, Eveliina; Huhtanen, Risto (2007-06-29)
Takasuo, Eveliina
Huhtanen, Risto
Säteilyturvakeskus
29.06.2007
Julkaisun pysyvä osoite on
https://urn.fi/URN:ISBN:978-952-478-226-5
STUK-TR : 1
https://urn.fi/URN:ISBN:978-952-478-226-5
STUK-TR : 1
Kuvaus
1. painos
Tiivistelmä
Abstract
Three ENACCEF hydrogen combustion tests have been simulated for code validation purposes using the TONUS V2006 and FLUENT 6.2.16 CFD software. The test series investigated deflagration in a uniform hydrogen concentration, in a concentration that decreases and in a concentration that increases along the height of the facility. In the TONUS calculations the CREBCOM combustion model and k-ε turbulence model with Eddy Break-Up (EBU) reaction kinetics have been used. In the FLUENT calculations only the k-ε and EBU models have been used and the simulation results are compared to each other and the test results.
TONUS CREBCOM results of the uniform mixture case obtained by 3D model of the facility are qualitatively in a reasonable agreement with the test results. In the increasing concentration case the flame speeds are exaggerated while in the decreasing concentration case the flame acceleration is underestimated. Further evaluation of the model parameters is suggested for non-homogenous mixtures. Generally, the EBU calculations by FLUENT show similar pressures and flame speed profiles with slightly higher maximum speeds as the CREBCOM cases. Also the FLUENT results are in a relatively good agreement with the test results.
Three ENACCEF hydrogen combustion tests have been simulated for code validation purposes using the TONUS V2006 and FLUENT 6.2.16 CFD software. The test series investigated deflagration in a uniform hydrogen concentration, in a concentration that decreases and in a concentration that increases along the height of the facility. In the TONUS calculations the CREBCOM combustion model and k-ε turbulence model with Eddy Break-Up (EBU) reaction kinetics have been used. In the FLUENT calculations only the k-ε and EBU models have been used and the simulation results are compared to each other and the test results.
TONUS CREBCOM results of the uniform mixture case obtained by 3D model of the facility are qualitatively in a reasonable agreement with the test results. In the increasing concentration case the flame speeds are exaggerated while in the decreasing concentration case the flame acceleration is underestimated. Further evaluation of the model parameters is suggested for non-homogenous mixtures. Generally, the EBU calculations by FLUENT show similar pressures and flame speed profiles with slightly higher maximum speeds as the CREBCOM cases. Also the FLUENT results are in a relatively good agreement with the test results.
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