Large-Eddy Simulation of a Spatially Evolving Supersonic Turbulent Boundary-Layer Flow

Spyropoulos, Evangelos T.; Blaisdell, Gregory A.

doi:10.2514/2.325

Cited by 37 publications

(12 citation statements)

References 24 publications

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“…This observation is consistent with that has been found in incompressible flows in Ref. [275]. It suggests that low order dissipative (upwind) finite difference methods should be used with care for computing such flows.…”

Section: Influence Of the Numerical Methodssupporting

confidence: 91%

“…The convective terms are computed both with fifth-order and third-order accurate upwind schemes. In the absence of shocks stable simulations [280] are obtained with centered scheme even at higher Mach number than that of Spyropoulos et al [275]. Moreover, the quality of results is similar to that employing a grid of 1.1 × 10 6 points with the fifthorder upwind scheme than using a grid of 2.9 × 10 6 points with a third-order scheme.…”

Section: Influence Of the Numerical Methodssupporting

confidence: 52%

“…It suggests that low order dissipative (upwind) finite difference methods should be used with care for computing such flows. It is almost also true for the "coarse" LES which is nearly as fine as the DNS used as a reference in [275]. The computations carried out with a second-order accurate upwind scheme in Refs.…”

Section: Influence Of the Numerical Methodsmentioning

confidence: 99%

“…The only paper which treats the effect of the numerical scheme is the one by Spyropoulos et al [275]. The convective terms are computed both with fifth-order and third-order accurate upwind schemes.…”

Section: Influence Of the Numerical Methodsmentioning

confidence: 99%

“…In this category, we can find for example reference [280] in which the Strong Reynolds Analogy (SRA) [207] was assessed. The last class of paper concerns studies which give information about numerical methods in a wider sense (grid resolution, numerical scheme, SGS model) [275,319]. The last class of paper concerns studies which give information about numerical methods in a wider sense (grid resolution, numerical scheme, SGS model) [275,319].…”

Section: Contextmentioning

confidence: 99%

See 4 more Smart Citations

Large Eddy Simulation for Compressible Flows

Garnier¹,

Adams²,

Sagaut³

2009

Scientific Computation

397

349

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Section: Influence Of the Numerical Methodssupporting

confidence: 91%

Section: Influence Of the Numerical Methodssupporting

confidence: 52%

Section: Influence Of the Numerical Methodsmentioning

confidence: 99%

Section: Influence Of the Numerical Methodsmentioning

confidence: 99%

Section: Contextmentioning

confidence: 99%

See 3 more Smart Citations

Large Eddy Simulation for Compressible Flows

Garnier¹,

Adams²,

Sagaut³

2009

Scientific Computation

397

349

View full text Add to dashboard Cite

Turbulence modelling of problem aerospace flows

Tucker

2006

Int. J. Numer. Meth. Fluids

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SUMMARYUnsteady Reynolds averaged Navier-Stokes (URANS) and detached eddy simulation (DES) related approaches are considered for high angle of attack NACA0012 airfoil, wing-ap, generic tilt-rotor airfoil and double-delta geometry ows. These are all found to be problem ows for URANS models. For DES ÿfth-order upwinding is found too dissipative and the use of, for high speed ows, instability prone centred di erencing essential. An existing hybrid ILES-RANS modelling approach, intended for exible geometry, relatively high numerical dissipation codes is tested along with di erential wall distance algorithms. The former gives promising results. The standard turbulence modelling approaches are found to give perhaps a surprising results variation. Results suggest that for the problem ows, the explicit algebraic stress and Menter shear stress transport (SST) URANS models are more accurate than the economical Spalart-Allmaras (SA). However, the explicit algebraic stress model (EASM) in its kform is impractically expensive to converge. Here, SA predictions lack a rotation correction term and this is likely to improve these results.

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Damping numerical oscillations in hybrid solvers through detection of Gibbs phenomenon

Chakravarthy

Chakraborty

2017

Numerical Methods in Fluids

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Summary A Gibbs phenomenon detector that is useful in damping numerical oscillations in hybrid solvers for compressible turbulence is proposed and tested. It is designed to function in regions away from discontinuities where commonly used discontinuity sensors are ineffective. Using this Gibbs phenomenon detector in addition to a discontinuity sensor for combining central and shock capturing schemes provides an integrated way of dealing with numerical oscillations generated by shock waves and contact lines that are normal to the flow. When complete suppression of numerical oscillations is not possible, they are sufficiently localized. Canonical tests and large eddy simulations show that inclusion of the proposed detector does not cause additional damping of ‘well‐resolved’ physical oscillations. Copyright © 2017 John Wiley & Sons, Ltd.

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Large-Eddy Simulation of a Spatially Evolving Supersonic Turbulent Boundary-Layer Flow

Cited by 37 publications

References 24 publications

Large Eddy Simulation for Compressible Flows

Large Eddy Simulation for Compressible Flows

Turbulence modelling of problem aerospace flows

Damping numerical oscillations in hybrid solvers through detection of Gibbs phenomenon

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