Blending of SAS and correlation-based transition models for flow simulation at supercritical Reynolds numbers

You, Ju Yeol; Kwon, Oh Joon

doi:10.1016/j.compfluid.2012.05.016

Cited by 15 publications

(2 citation statements)

References 13 publications

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“…Sørensen, Bechmann & Zahle (2011) introduce the – model into the DES method, which can successfully simulate flows past a circular cylinder at low Reynolds number and a thick airfoil at high angles of attack (AoAs). You & Kwon (2013) suggest a blending function in the combination of the scale-adaptive simulation method with the – model for flow past a circular cylinder. Xiao et al (2019) propose applying the –– transition model (Wang & Fu 2009) to the DDES method, which is validated in computations of hypersonic flow past Orion capsule (Xiao et al 2019), airfoil at near-stall condition (Cui, Xiao & Yuan 2020) and flow past a circular cylinder (Wang, Xiao & Chen 2020).…”

Section: Introductionmentioning

confidence: 99%

Transition-based constrained large-eddy simulation method with application to an ultrahigh-lift low-pressure turbine cascade flow

Wang

Xiao

2022

J. Fluid Mech.

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A transition-predictive Reynolds-averaged Navier–Stokes (RANS) model is introduced as the Reynolds controlling condition to constrained large-eddy simulation (TrCLES) to improve the ability of this method to predict wall-bounded laminar–turbulent transition flows. In the TrCLES method, the constraint conditions for total Reynolds stress and heat flux are only imposed to the near-wall region in transitional and turbulent boundary layer. The newly proposed method recovers direct numerical simulation in the laminar boundary region, and retrieves the traditional large-eddy simulation method in the far-wall regions. The TrCLES method is validated in simulations of external flow around the Eppler 387 (E387) airfoil and internal flow past the ultrahigh-lift low-pressure turbine T106C cascade. The improved delayed detached-eddy simulation (IDDES) method, CLES method based on full-turbulence shear stress transport model and RANS method with a three-equation transition model are also evaluated in comparison with the available experimental and numerical data. As expected, the TrCLES method can predict laminar separation bubble and separation-induced transition process in both the E387 and T106C flows pretty well. In contrast, neither IDDES nor the original CLES can provide reasonable prediction for the laminar separation-induced transition phenomenon. The validity and fidelity of the TrCLES method are further verified by simulations of the T106C cascade flows in a wider range of exit Reynolds and Mach numbers. It is shown that the TrCLES method can not only predict the time-averaged aerodynamic quantities such as isentropic Mach number and exit kinetic energy loss very well, but also capture the laminar separation bubble and unsteady flow structures with satisfactory accuracy.

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Section: Introductionmentioning

confidence: 99%

Transition-based constrained large-eddy simulation method with application to an ultrahigh-lift low-pressure turbine cascade flow

Wang

Xiao

2022

J. Fluid Mech.

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“…It was shown to obtain the average resistance results consistent with experiments of the flow around a cylinder in a moderate range of Reynolds numbers. In 2013, the SAS γ-Re θt model developed by You and Kwon (2013) proved capable to predict the mean aerodynamic force in the flow around a cylinder. In 2014, Qiao (Qiao et al, 2014) studied the boundary layer transition along a plate using DES calculations.…”

Section: Introductionmentioning

confidence: 99%

Assessment of turbulence models for the boundary layer transition flow simulation around a hydrofoil

Wang

et al. 2020

Ocean Engineering

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Low-Reynolds number flow computation for eppler 387 wing using hybrid DES/transition model

et al. 2015

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Blending of SAS and correlation-based transition models for flow simulation at supercritical Reynolds numbers

Cited by 15 publications

References 13 publications

Transition-based constrained large-eddy simulation method with application to an ultrahigh-lift low-pressure turbine cascade flow

Transition-based constrained large-eddy simulation method with application to an ultrahigh-lift low-pressure turbine cascade flow

Assessment of turbulence models for the boundary layer transition flow simulation around a hydrofoil

Low-Reynolds number flow computation for eppler 387 wing using hybrid DES/transition model

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