Results 31 to 40 of about 11,201 (183)
Computational fluid dynamics challenges for hybrid air vehicle applications [PDF]
, 2017 This paper begins by comparing turbulence models for the prediction of hybrid air vehicle (HAV) flows. A 6 : 1 prolate spheroid is employed for validation of the computational fluid dynamics (CFD) method.
Barakos, G.N. +4 more
core +2 more sources
Continuous Eddy Simulation vs. Resolution-Imposing Simulation Methods for Turbulent Flows
FluidsThe usual concept of simulation methods for turbulent flows is to impose a certain (partial) flow resolution. This concept becomes problematic away from limit regimes of no or an almost complete flow resolution: discrepancies between the imposed and ...
Adeyemi Fagbade, Stefan Heinz
doaj +1 more source
Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes
Applied and Computational MechanicsDetached eddy simulation (DES), delayed DES (DDES) and improved DDES (IDDES) hybrid RANS-LES turbulence models based on the Menter’s Shear Stress Transport (SST) model as well as the DES variant of the Kok's Turbulent/Non-Turbulent model (TNT), Extra ...
Hájek L. +3 more
doaj +1 more source
Development of a hybrid RANS/LES method for compressible mixing layer simulations [PDF]
39th Aerospace Sciences Meeting and Exhibit, 2001 Nicholas J. GeorgiadisGlenn Research Center, Cleveland, OhioJ. Iwan D. Alexander and Eli ReshotkoCase Western Reserve University, Cleveland, OhioPrepared for the39th Aerospace Sciences Meeting and Exhibitsponsored by the American Institute of Aeronautics and AstronauticsReno, Nevada, January 8-11, 2001National Aeronautics andSpace AdministrationGlenn ...
Nicholas Georgiadis +2 more
openaire +1 more source
Journal of Marine Science and EngineeringThe performance of various turbulence modelling methods for simulating cavitating flow over a hydrofoil was investigated. VOF mixture modelling was applied for the multiphase flow, along with a standard two-equation turbulence model, a hybrid RANS-LES ...
Ville Viitanen +4 more
doaj +1 more source
Hybrid RANS/LES of flow in a rib-roughened channel with rotation [PDF]
, 2012 The aim of the present study is to verify the reliability of a k-ω based hybrid RANS/LES model in reproducing the flow in a rib-roughened rotating channel. The numerical results obtained with the hybrid RANS/LES model are compared to experimental data by
Dick, Erik +2 more
core
Engineering Applications of Computational Fluid Mechanics, 2018 The widely used improved delayed detached eddy simulation (IDDES) method is supposed to accurately predict the mean skin friction when it acts as wall-modeled large eddy simulation (WMLES), as claimed by the original authors.
Yiyu Han +4 more
doaj +1 more source
Anisotropic Organised Eddy Simulation for the prediction of non-equilibrium turbulent flows around bodies [PDF]
, 2008 The unsteady turbulent flow around bodies at high Reynolds number is predicted by an anisotropic eddy-viscosity model in the context of the Organised Eddy Simulation (OES).
Bourguet, Rémi +3 more
core +2 more sources
FluidsFeasible and reliable predictions of separated turbulent flows are a requirement to successfully address the majority of aerospace and wind energy problems. Existing computational approaches such as large eddy simulation (LES) or Reynolds-averaged Navier–
Stefan Heinz
doaj +1 more source
Uncertainty Quantification of Film Cooling Performance of an Industrial Gas Turbine Vane
Entropy, 2019 Computational Fluid Dynamics (CFD) results are often presented in a deterministic way despite the uncertainties related to boundary conditions, numerical modelling, and discretization error.
Andrea Gamannossi +5 more
doaj +1 more source