Energies, 2021 This work presents a comparison study of the CFD modeling with two different turbulence modeling approaches viz. unsteady RANS and LES, on a full-scale model of the (New) MEXICO rotor wind turbine.
Shantanu Purohit +2 more
doaj +1 more source
Hybridization of multi-objective deterministic particle swarm with derivative-free local searches [PDF]
, 2020 The paper presents a multi-objective derivative-free and deterministic global/local hybrid algorithm for the efficient and effective solution of simulation-based design optimization (SBDO) problems.
Diez, M. +5 more
core +2 more sources
On the validation and use of high-fidelity numerical simulations for gust response analysis [PDF]
, 2018 Specific gust response is considered as one of the most important loads encountered by an aircraft. The Certification Specification (CS) 25, defined by the European Aviation Safety Agency (EASA), and the Federal Aviation Regulations (FAR) 25, defined by ...
Dequand, Sylvie +3 more
core +2 more sources
DLR TAU-Code uRANS Turbofan Modeling for Aircraft Aerodynamics Investigations
Aerospace, 2019 In the context of an increased focus on fuel efficiency and environmental impact, turbofan engine developments continue towards larger bypass ratio engine designs, with Ultra-High Bypass Ratio (UHBR) engines becoming a likely power plant option for ...
Arne Stuermer
doaj +1 more source
A computational assessment of the aerodynamic performance of a tilted Darrieus wind turbine [PDF]
, 2015 The aerodynamic performance of a Darrieus wind turbine operating with the rotation axis tilted with respect to the free-stream wind speed is investigated in this paper. An Unsteady Reynolds Averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD)
Bedon, Gabriele +2 more
core +1 more source
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
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
Standard and consistent Detached-Eddy Simulation for turbulent engine flow modeling: an application to the TCC-III engine [PDF]
E3S Web of Conferences, 2020 Multidimensional modeling of Cycle-to-Cycle Variability (CCV) has become a crucial support for the development and optimization of modern direct-injection turbocharged engines.
Krastev Vesselin Krassimirov +4 more
doaj +1 more source
Use of URANS approach for determination of temperature fluctuations when mixing triple-jet sodium at different temperatures [PDF]
Компьютерные исследования и моделирование, 2014 The possibility to study temperature fluctuations using URANS approach is studied. The results of numerical simulation of mixing processes for triple-jet sodium at different temperatures are presented.
Sergey A. Rogozhkin +7 more
doaj +1 more source
Unsteady cfd analysis of erosion mechanism in the coolant channels of a rotating gas turbine blade [PDF]
, 2015 The two-phase flow in a rotating wedge mimicking the final portion of a blade turbine internal cooling channel is here presented and discussed focusing on unsteady motion and erosion mechanisms.
Anielli, Davide +4 more
core +1 more source