3-D turbomachinery Euler and Navier-Stokes calculations with a multidomain cell-centered approach

Vuillot, A. M.; Couaillier, Vincent; Liamis, N.

doi:10.2514/6.1993-2576

Cited by 34 publications

(10 citation statements)

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“…Developed at ONERA since 1997 and initially based on its predecessors Canari [8] and Flu3M [9], elsA is a structured multiblock CFD solver based on a cell-centered ¦nite-volume approach [5,10].…”

Section: The Multiblock Structured Solver Elsamentioning

confidence: 99%

elsA-Hybrid: an all-in-one structured/unstructured solver for the simulation of internal and external flows. Application to turbomachinery

Plata

Couaillier

Pape

et al. 2013

Progress in Propulsion Physics

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This paper reports recent work on the extension of the multiblock structured solver elsA to deal with hybrid grids. The new hybrid-grid solver is called elsA-H (elsA-Hybrid), is based on the investigation of a new unstructured-grid module has been built within the original elsA CFD (computational §uid dynamics) system. The implementation bene¦ts from the §exibility of the object-oriented design. The aim of elsA-H is to take advantage of the full potential of structured solvers and unstructured mesh generation by allowing any type of grid to be used within the same simulation process. The main challenge lies in the numerical treatment of the hybrid-grid interfaces where blocks of di¨erent type meet. In particular, one must pay attention to the transfer of information across these boundaries, so that the accuracy of the numerical scheme is preserved and §ux conservation is guaranteed. In this paper, the numerical approach allowing to achieve this is presented. A comparison between the hybrid and the structured-grid methods is also carried out by considering a fully hexahedral multiblock mesh for which a few blocks have been transformed into unstructured. The performance of elsA-H for the simulation of internal §ows will be demonstrated on a number of turbomachinery con¦gurations.

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Section: The Multiblock Structured Solver Elsamentioning

confidence: 99%

elsA-Hybrid: an all-in-one structured/unstructured solver for the simulation of internal and external flows. Application to turbomachinery

Plata

Couaillier

Pape

et al. 2013

Progress in Propulsion Physics

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“…The CANARI code developed by ONERA [32,33] is used. It solves the 3D compressible Navier-Stokes equations using an explicit four-step Runge-Kutta temporal discretization and Lerat implicit residual smoothing phase [34] .…”

Section: Numerical Proceduresmentioning

confidence: 99%

Assessment of linear and non-linear two-equation turbulence models for aerothermal turbomachinery flows

Kulisa¹,

Dano²

2006

J. of Therm. Sci.

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“…The solver used in this work is built from the following numerical tools: 19,20 the multidomain approach with structured grids overlapping or not, centered schemes with an implicit acceleration technique, and use of the characteristic relation method for the boundary conditions treatment. The numerical scheme used in this paper is the cell-centered Runge-Kutta scheme using a space-centered discretization operator.…”

Section: B Numerical Schemementioning

confidence: 99%

Multiple scale modeling of turbulent nonequilibrium boundary layer flows

1996

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Multiple scale models are investigated in order to improve modeling of turbulent nonequilibrium boundary layers. The model is first calibrated on the standard equilibrium boundary layer and then applied to several nonequilibrium flows. Applications include the flow around an airfoil, the shock–boundary layer interaction, the transonic bump flow, and a three-dimensional bump. The multiple scale model predictions are compared with experimental results and with standard one-scale models. Several improvements are obtained that make the multiple scale model an interesting tool for tackling the prediction of nonequilibrium turbulent flows.

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3-D turbomachinery Euler and Navier-Stokes calculations with a multidomain cell-centered approach

Cited by 34 publications

References 1 publication

elsA-Hybrid: an all-in-one structured/unstructured solver for the simulation of internal and external flows. Application to turbomachinery

elsA-Hybrid: an all-in-one structured/unstructured solver for the simulation of internal and external flows. Application to turbomachinery

Assessment of linear and non-linear two-equation turbulence models for aerothermal turbomachinery flows

Multiple scale modeling of turbulent nonequilibrium boundary layer flows

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