Journal Article10.1016/J.IJHEATMASSTRANSFER.2019.03.119
Numerical investigations of hypersonic transition and massive separation past Orion capsule by DDES-Tr
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TL;DR: In this article, a delayed detached eddy simulation (DDES) based on a three-equation k-ω-γ transition/turbulence integrated model (Tr) is compared with the available measurements and DDES-FT (full turbulence).
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About: This article is published in International Journal of Heat and Mass Transfer. The article was published on 01 Jul 2019. The article focuses on the topics: Hypersonic speed & Supersonic speed.
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Citations
Adaptive detached eddy simulation of transition under the influence of free-stream turbulence and pressure gradient
Zifei Yin,Xuan Ge,Paul A. Durbin +2 more
TL;DR: Yin et al. as mentioned in this paper proposed an adaptive detached eddy simulation model for laminar-to-turbulent transition, which dynamically adjusts a model constant, based on local mesh resolution and instantaneous flow features.
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Transition-based constrained large-eddy simulation method with application to an ultrahigh-lift low-pressure turbine cascade flow
Xiaole Wang,Zuoli Xiao +1 more
TL;DR: In this paper , 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.
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Simultaneous simulation of transition and massive separation by RANS-LES-Tr model
TL;DR: In this article, a Reynolds averaged Navier Stokes-Large Eddy Simulation (RANS-LES) hybrid model based on the three-equation k-ω-γ transition model was developed.
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Simulations of transition and separation past a wind-turbine airfoil near stall
TL;DR: In this article, a new improved delayed detached eddy simulation (IDDES) method based on the three-equation k-ω-γ transition/turbulence integrated model was developed and applied to simulate the attached transition and resolve the separation past a wind-turbine airfoil.
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Machine-Learning-Based Transition Prediction for Hypersonic Boundary Layers with Crossflow
Bryan Barraza,Andreas Gross,Anthony P. Haas,Christoph Hader,Hermann F. Fasel +4 more
- 19 Jan 2023
TL;DR: In this article , a second-mode-based amplification factor transport equation transition model is extended to account for crossflow instability in hypersonic flight vehicles, and the transition model production term is modeled with a neural network.
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References
A new version of detached-eddy simulation, resistant to ambiguous grid densities
Philippe R. Spalart,Sébastien Deck,Michael Shur,Kyle D. Squires,M. Kh. Strelets,Andrey Travin +5 more
TL;DR: In this paper, the authors proposed the DES97 model, denoted DES97 from here on, which can exhibit an incorrect behavior in thin boundary layers and shallow separation regions, when the grid spacing parallel to the wall becomes less than the boundary-layer thickness.
Boundary-Layer Linear Stability Theory
L. M. Mack
- 01 Jun 1984
TL;DR: In this paper, the amplitude ratio of the most amplified frequency as a function of Reynolds number for a Blasius boundary layer, and found that this quantity had values between five and nine at the observed Ret.
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Methods for the accurate computations of hypersonic flows: I. AUSMPW + scheme
TL;DR: In this paper, a grant from the BK-21 Program for Mechanical and AerospaceEngineering Research at Seoul National University and a Grant from theKorea Science and Engineering Foundation (KSF) was used to support the work.
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Direct Numerical Simulation on the Receptivity, Instability, and Transition of Hypersonic Boundary Layers
Xiaolin Zhong,Xiaowen Wang +1 more
TL;DR: In the 20 years since the review by Kleiser & Zang (1991) on the direct numerical simulation (DNS) of the boundary-layer transition, significant progress has been made on DNS in the hypersonic flow regime and in the spatial DNS approach as discussed by the authors.
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