Results 251 to 260 of about 57,630 (294)
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Reynolds Stress Closure in Hybrid RANS-LES Methods
2015The feasibility of using the elliptic blending Reynolds stress model (EB-RSM) in hybrid RANS-LES methods is investigated in this paper. The advantage of the EB-RSM is that it does not use any geometrical wall distance or wall normal vector information which makes it well suited for application in flows with complex wall geometries.
Michael Stoellinger +2 more
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Computational Simulation of Jet in Crossflow with RANS and Hybrid RANS/LES Methods
AIAA SCITECH 2023 Forum, 2023Brian R. Smith, Patrick Yagle
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Comparison of RANS and DES Methods for the DrivAer Automotive Body
SAE Technical Paper Series, 2015<div class="section abstract"><div class="htmlview paragraph">Computational Fluid Dynamics (CFD) is now one of the most important design tools for the automotive industry. Reliable CFD simulations of the complex separated turbulent flow around vehicles is becoming an ever more crucial goal to increase fuel efficiency and reduce noise ...
Ashton, Neil, Revell, Alistair
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38th Fluid Dynamics Conference and Exhibit, 2008
This work presents an immersed boundary (IB) technique for compressible, turbulent flows and applies the technique to simulate the effects of micro vortex generators (micro VGs) in controlling oblique-shock / turbulent boundary layer interactions. Both Reynolds averaged Navier-Stokes (RANS) and hybrid large-eddy / Reynolds-averaged Navier-Stokes (LES ...
Santanu Ghosh +2 more
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This work presents an immersed boundary (IB) technique for compressible, turbulent flows and applies the technique to simulate the effects of micro vortex generators (micro VGs) in controlling oblique-shock / turbulent boundary layer interactions. Both Reynolds averaged Navier-Stokes (RANS) and hybrid large-eddy / Reynolds-averaged Navier-Stokes (LES ...
Santanu Ghosh +2 more
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Synthetic Turbulence Generation for a Zonal RANS-LES Method
2012A synthetic turbulence generation (STG) method for flows at low and high Reynolds and Mach numbers to provide LES inflow boundary conditions of zonal Reynolds-averaged Navier-Stokes (RANS)- large-eddy simulation (LES) method simulations is presented. The present method separates the LES inflow plane into three sections where a local velocity signal is ...
Benedikt Roidl +3 more
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Effect of RANS Method on Stall Inception Eigenvalue Approach
Volume 2B: Turbomachinery, 2017The effect of mesh, turbulence model and discretization scheme in Reynolds-averaged Navier-Stokes method (RANS) on a stall inception eigenvalue approach is investigated in a transonic compressor rotor. The most influencing flow structures on the result of eigenvalue approach are also identified.
Zhe Xie +4 more
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Hybrid RANS-LES Methods Applied to Acoustic Problems
2015In this paper, two acoustic problems of importance to the engineering community are solved using hybrid RANS-LES methods. More specifically, results from the problems of supersonic flow over a surface mounted protuberance and that of a supersonic jet impingement on a flat plat are presented.
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HVAC Blower: A Steady State RANS Noise Prediction Method
SAE International Journal of Advances and Current Practices in Mobility<div class="section abstract"><div class="htmlview paragraph">In an ever-transforming sector such as that of private road transport, major changes in the propulsion systems entail a change in the perception of the noise sources and the annoyance they cause.
Asuka Gabriele Pietroniro +5 more
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A New Dynamic LES/RANS Hybrid Method
18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference, 2012Ruize Gao, Jinglei Xu, Chao Yan
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