Numerical analysis of thermal striping induced high cycle thermal fatigue in a mixing tee

Lee, Jeong Ik; Hu, Lin-wen; Saha, Pradip Kumar; Kazimi, Mujid S.

doi:10.1016/j.nucengdes.2008.06.014

Cited by 86 publications

(24 citation statements)

References 9 publications

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“…The T-junction is one of the typical components with a considerable potential of thermal fatigue (Chapuliot et al 2005;Hu & Kazimi 2006;Lee et al 2009) and is used in many thermohydraulic systems such as combustion engines, turbines, exhaust systems, reheat systems and so on. The T-junction configuration consists of two pipe systems intersected perpendicularly, and they are called main and branch pipes.…”

Section: Introductionmentioning

confidence: 99%

Large Eddy Simulation of Turbulent Flow in a T-Junction

Kim

Jeong

2012

Numerical Heat Transfer, Part A: Applications

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Section: Introductionmentioning

confidence: 99%

Large Eddy Simulation of Turbulent Flow in a T-Junction

Kim

Jeong

2012

Numerical Heat Transfer, Part A: Applications

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“…Lee et al [53] studied the temperature fluctuations and structural response of a standard mixing tee configuration by coupling LES with a newly developed thermal stress fatigue analyses. Meanwhile Ndombo and Howard [62] coupled LES with the inclusion of synthetic turbulence at the inlet.…”

Section: Thermal Mixing In a T-junctionmentioning

confidence: 99%

A Review of Embedded Large Eddy Simulation for Internal Flows

Holgate

Skillen

Craft

et al. 2018

Arch Computat Methods Eng

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When scale-resolving simulation approaches are employed for the simulation of turbulent flow, computational cost can often be prohibitive. This is particularly true for internal wall-bounded flows, including flows of industrial relevances which may involve both high Reynolds number and geometrical complexity. Modelling the turbulence induced stresses (at all scales) has proven to lack requisite accuracy in many situations. In this work we review a promising family of approaches which aim to find a compromise between cost and accuracy; hybrid RANS-LES methods. We place particular emphasis on the emergence of embedded large eddy simulation. These approaches are summarised and key features relevant to internal flows are highlighted. A thorough review of the application of these methods to internal flows is given, where hybrid approaches have been shown to offer significant benefits to industrial CFD (relative to an empirical broadband modelling of turbulence). This paper concludes by providing a cost-analysis and a discussion about the emerging novel use-modalities for hybrid RANS-LES methods in industrial CFD, such as automated embedded simulation and multi-dimensional coupling.

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“…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

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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

Numerical analysis of thermal striping induced high cycle thermal fatigue in a mixing tee

Cited by 86 publications

References 9 publications

Large Eddy Simulation of Turbulent Flow in a T-Junction

Large Eddy Simulation of Turbulent Flow in a T-Junction

A Review of Embedded Large Eddy Simulation for Internal Flows

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

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