Large Eddy Simulation of a thermal mixing tee in order to assess the thermal fatigue

Galpin, J. M.; Simoneau, J.P.

doi:10.1016/j.ijheatfluidflow.2011.03.007

Cited by 27 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The coupling frequency with the radiation solver was however strongly limited. Nevertheless, accurate unsteady simulations such as LES to predict unsteady wall heat loads is very promising to determine thermal fatigue in combustors as recently developed in the nuclear engineering community [29,28,14].…”

Section: Introductionmentioning

confidence: 99%

Multiphysics Simulation Combining Large-Eddy Simulation, Wall Heat Conduction and Radiative Energy Transfer to Predict Wall Temperature Induced by a Confined Premixed Swirling Flame

Koren

Vicquelin

Gicquel

2018

Flow Turbulence Combust

View full text Add to dashboard Cite

A multi-physics simulation combining large-eddy simulation, conjugate heat transfer and radiative heat transfer is used to predict the wall temperature field of a confined premixed swirling flame operating under atmospheric pressure. The combustion model accounts for the effect of enthalpy defect on the flame structure whose stabilization is here sensitive to the wall heat losses. The conjugate heat transfer is accounted for by solving the heat conduction within the combustor walls and with the Hybrid-Cell Neumann-Dirichlet coupling method, enabling to dynamically adapt the coupling period. The latter coupling procedure is enhanced to determine statistics (mean, RMS,. . .) in a permanent regime accurately and efficiently thanks to an acceleration technique which is derived and validated. The exact radiative heat transfer equation is solved with an advanced Monte Carlo method with a local control of the statistical error. The coupled simulation is carried out with or without accounting for radiation. Excellent results for the wall temperature are achieved by the fully coupled simulation which are then further analyzed in terms of radiative effects, global energy budget and fluctuations of wall heat flux and temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Multiphysics Simulation Combining Large-Eddy Simulation, Wall Heat Conduction and Radiative Energy Transfer to Predict Wall Temperature Induced by a Confined Premixed Swirling Flame

Koren

Vicquelin

Gicquel

2018

Flow Turbulence Combust

View full text Add to dashboard Cite

show abstract

“…While being neglected here, subgrid-scale TRI effects are strictly not negligible and modeling studies have recently emerged [13,14]. Finally, accurate unsteady simulations such as LES to predict unsteady wall heat loads is very promising to determine thermal fatigue in combustors as recently developed in the nuclear engineering community [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

High-Fidelity Multiphysics Simulation of a Confined Premixed Swirling Flame Combining Large-Eddy Simulation, Wall Heat Conduction and Radiative Energy Transfer

Koren

Vicquelin

Gicquel

2017

Volume 5C: Heat Transfer

View full text Add to dashboard Cite

A multi-physics simulation combining large-eddy simulation, conjugate heat transfer and radiative heat transfer is used to predict the wall temperature field of a confined premixed swirling flame operating under atmospheric pressure. The combustion model accounts for the effect of enthalpy defect on the flame structure whose stabilization is here sensitive to the wall heat losses. The conjugate heat transfer is accounted for by solving the heat conduction within the combustor walls and with the Hybrid-Cell Neumann-Dirichlet coupling method, enabling to dynamically adapt the coupling period. The exact radiative heat transfer equation is solved with an advanced Monte Carlo method with a local control of the statistical error. The coupled simulation is carried out with or without accounting for radiation. Excellent results for the wall temperature are achieved by the fully coupled simulation which are then further analyzed in terms of radiative effects, global energy budget and fluctuations of wall heat flux and temperature.

show abstract

“…Ming and Zhao (2012) and Kim and Jeong (2012) analysed the temperature fluctuations in tee junctions with diameter ratios of about unity and found large fluctuations with dominant frequencies of Strouhal numbers in the order of 0.5. Galpin and Simoneau (2011) investigated thermal fatigue phenomenon using both the Smagorinsky and the structurefunction models, the latter providing slightly better predictions.…”

Section: Introductionmentioning

confidence: 99%

Large-eddy simulation in a mixing tee junction: High-order turbulent statistics analysis

Howard

Serre

2015

International Journal of Heat and Fluid Flow

View full text Add to dashboard Cite

Large Eddy Simulation of a thermal mixing tee in order to assess the thermal fatigue

Cited by 27 publications

References 8 publications

Multiphysics Simulation Combining Large-Eddy Simulation, Wall Heat Conduction and Radiative Energy Transfer to Predict Wall Temperature Induced by a Confined Premixed Swirling Flame

Multiphysics Simulation Combining Large-Eddy Simulation, Wall Heat Conduction and Radiative Energy Transfer to Predict Wall Temperature Induced by a Confined Premixed Swirling Flame

High-Fidelity Multiphysics Simulation of a Confined Premixed Swirling Flame Combining Large-Eddy Simulation, Wall Heat Conduction and Radiative Energy Transfer

Large-eddy simulation in a mixing tee junction: High-order turbulent statistics analysis

Contact Info

Product

Resources

About