Numerical Investigation of Installed Jet Noise Sensitivity to Lift and Wing/Engine Positioning [PDF]
, 2018 The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.As the turbofan engines of modern transport aircraft have increasingly larger bypass ratios, by necessity ...
Angelino M. +5 more
core +1 more source
3-D hybrid LES-RANS model for simulation of open-channel T-diversion flows
Water Science and Engineering, 2009 The study of flow diversions in open channels plays an important practical role in the design and management of open-channel networks for irrigation or drainage.
Jie Zhou, Cheng Zeng
doaj +1 more source
Effects of near wall modeling in the Improved-Delayed-Detached-Eddy-Simulation (IDDES) methodology [PDF]
, 2018 The present study aims to assess the effects of two different underlying RANS models on overall behavior of the IDDES methodology when applied to different flow configurations ranging from fully attached (plane channel flow) to separated flows (periodic ...
Duan, Lian +4 more
core +2 more sources
Scale-adaptive simulation of unsteady cavitation around a naca66 hydrofoil [PDF]
, 2019 Distances between consecutive aftershocks are analysed by means of mono- and multifractal theory with the aim of quantifying the complexity of the physical mechanism governing them, as well as their predictability and predictive instability.
Escaler Puigoriol, Francesc Xavier +3 more
core +2 more sources
Turbulence Modeling Technique has Significant Effects on the Optimization of Centrifugal Blood Pumps
IEEE AccessBlood pumps need to be further optimized to reduce blood damage and associated clinical complications. Turbulence is the key factor affecting blood damage.
Zhigang Pan, Fei-Hong Gao, Peng Wu
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
Toward an equivalence criterion for Hybrid RANS/LES methods [PDF]
, 2015 International audienceA criterion is established to assess the equivalence between hybrid RANS/LES methods, called H-equivalence, based on the modeled energy of the unresolved scales, which leads to similar low-order statistics of the resolved motion ...
Friess, Christophe +2 more
core +3 more sources
Improved version of LeMoS hybrid model for ambiguous grid densities
International Journal of Naval Architecture and Ocean Engineering, 2018 Application of the LeMoS hybrid (LH) URANS/LES method for the wake parameters prediction is considered. The wake fraction coefficient is calculated for inland ship model M1926 under shallow water conditions and compared to results of PIV measurements. It
I. Shevchuk, N. Kornev
doaj +1 more source
Towards a Predictive Hybrid RANS/LES Framework [PDF]
AIAA Scitech 2019 Forum, 2019 Predictive simulation of many complex flows requires moving beyond Reynolds-averaged Navier-Stokes (RANS) based models to representations resolving at least some scales of turbulence in at least some regions of the flow. To resolve turbulence where necessary while avoiding the cost of performing large eddy simulation (LES) everywhere, a broad range of ...
Haering, Sigfried +2 more
openaire +2 more sources
Unsteady RANS and LES Simulation of an Ideal Rankine Vortex Decay
Advances in Civil Engineering, 2012 The 3D numerical simulation was carried out for an idealized Rankine vortex using nonlinear k-ε model (one kind of RANS model) and large eddy simulation (LES) techniques.
Md. Shahjahan Ali +2 more
doaj +1 more source