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Computational Fluid Dynamic Analysis of Fluid Motion and Volumetric Gas-Liquid Mass Transfer in Agitated Platelet Concentrate Storage. [PDF]
Biotechnol JPym D +6 more
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Validation of a two-fluid turbulence model in comsol multiphysics for the problem of flow around aerodynamic profiles. [PDF]
Sci RepMalikov ZM +3 more
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Hybrid RANS–LES Simulation of Wingtip Vortex Dynamics
Volume 1D, Symposia: Transport Phenomena in Mixing; Turbulent Flows; Urban Fluid Mechanics; Fluid Dynamic Behavior of Complex Particles; Analysis of Elementary Processes in Dispersed Multiphase Flows; Multiphase Flow With Heat/Mass Transfer in Process Technology; Fluid Mechanics of Aircraft and Rocket Emissions and Their Environmental Impacts; High Performance CFD Computation; Performance of Multiphase Flow Systems; Wind Energy; Uncertainty Quantification in Flow Measurements and Simulations, 2014This paper presents a feasibility study of a hybrid RANS–LES approach to numerical simulation of aircraft wing-tip vortices. A NACA 0012 wing is considered for which earlier published experimental and numerical data are available. Mesh sensitivity tests of our RANS solver and comparisons between two different turbulence models indicate that the RANS ...
Kolomenskiy, Dmitry +2 more
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2013
A fully coupled zonal Reynolds-averaged Navier-Stokes (RANS) - large-eddy simulation (LES) method and a hybrid Detached- Eddy Simmulation (DES) method are presented and results for a subsonic flow over the HGR-01 airfoil at high angle of attack are discussed for both methods.
Koen Geurts, Axel Probst
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A fully coupled zonal Reynolds-averaged Navier-Stokes (RANS) - large-eddy simulation (LES) method and a hybrid Detached- Eddy Simmulation (DES) method are presented and results for a subsonic flow over the HGR-01 airfoil at high angle of attack are discussed for both methods.
Koen Geurts, Axel Probst
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Hybrid RANS-LES for Turbomachinery
Volume 2C: Turbomachinery, 2018A range of popular hybrid Reynolds averaged Navier-Stokes - large eddy simulation (RANS-LES) methods are tested for cavity and labyrinth seal flows using an in-house high-order computational fluid dynamics (CFD) code and a commercial CFD code. The models include the Spalart-Allmaras (SA) and Menter SST variants of delayed detached eddy simulation (DDES)
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Interface conditions for hybrid RANS/LES calculations
International Journal of Heat and Fluid Flow, 2006Hybrid RANS/LES simulations, in which the attached boundary layers are computed using the Reynolds-averaged Navier–Stokes (RANS) equations, and the non-equilibrium regions of the flow by large-eddy simulation (LES), have received considerable attention over recent years. One issue that may affect (sometimes significantly) the accuracy of the results of
A. Keating, G. De Prisco, U. Piomelli
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Hybrid RANS/LES of a Supersonic Combustor
26th AIAA Applied Aerodynamics Conference, 2008Preliminary results from simulations modeling ush wall fuel injection in scramjet engines is presented. The simulations use a hybrid Reynolds-averaged Navier-Stokes and large eddy simulation methodology, where the primary function of the RANS mode is to act as a wall model for the large eddy simulation.
David Peterson, Graham Candler
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2002
This chapter is devoted to the presentation of hybrid RANS/LES methods. The main motivation for hybridizing the two methods is to decrease the cost of the traditional large-eddy simulation method, which is large because of: — the requirement to directly capture all the scales of motion responsible for turbulence production; — the observed ...
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This chapter is devoted to the presentation of hybrid RANS/LES methods. The main motivation for hybridizing the two methods is to decrease the cost of the traditional large-eddy simulation method, which is large because of: — the requirement to directly capture all the scales of motion responsible for turbulence production; — the observed ...
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Hybrid RANS/LES of a supersonic combustor
Aerospace Science and Technology, 2017Abstract A novel method for the hybridization of RANS and LES is presented tailored for the utilization in supersonic combustor ducts. The intention is to treat the largest portion of the boundary layers with RANS in order to reduce the computational requirements of LES in near-wall regions.
Konrad Makowka +3 more
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