Results 31 to 40 of about 6,869 (224)
Simulation of 2-way fluid structure interaction in a 3D model combustor [PDF]
, 2012 The liner of a gas turbine combustor is a very flexible structure that is exposed to the pressure oscillations that occur in the combustor. These pressure oscillations can be of very high amplitude due to thermoacoustic instability, when the fluctuations
Alemela, P.R., Kok, J.B.W., Shahi, M.
core +3 more sources
Advances in Wind EngineeringThe detached tunnel lining concrete blocks poses a serious threat to the safety of moving high-speed train. Understanding the flight characteristics of detached blocks from the tunnel soffit under train piston airflow is essential for devising ...
Yikang Liu +3 more
doaj +1 more source
Neuro-Fuzzy Network-Based Reduced-Order Modeling of Transonic Aileron Buzz
Aerospace, 2020 In the present work, a reduced-order modeling (ROM) framework based on a recurrent neuro-fuzzy model (NFM) that is serial connected with a multilayer perceptron (MLP) neural network is applied for the computation of transonic aileron buzz.
Rebecca Zahn, Christian Breitsamter
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Unsteady effects at the interface between impeller-vaned diffuser in a low pressure centrifugal compressor [PDF]
INCAS Bulletin, 2013 In this paper, Proper Orthogonal Decomposition (POD) is applied to the analysis of the unsteady rotor-stator interaction in a low-pressure centrifugal compressor.
Mihai Leonida NICULESCU, Sterian DANAILA
doaj +1 more source
A numerical study of unsteady cavitation on a hydrofoil by LES and URANS method [PDF]
Journal of Physics: Conference Series, 2015 In this paper, the unsteady cavitation phenomena on a NACA0015 hydrofoil is numerically simulated by unsteady Reynolds-Averaged Navier-Stokes (URANS) method and Large Eddy Simulation (LES) in single-fluid approaches to multiphase modelling, respectively.
Li, Zi Ru (author) +3 more
openaire +2 more sources
CFD Analysis of Contrarotating Open Rotor Aerodynamic Interactions
International Journal of Aerospace Engineering, 2018 High efficiency and low fuel consumption make the contrarotating open rotor (CROR) system a viable economic and environmentally friendly powerplant for future aircraft.
Wenbo Shi, Jie Li, Zhao Yang, Heng Zhang
doaj +1 more source
Macromolecular Symposia, EarlyView.ABSTRACT This paper presents theoretical aspects and experimental tests for the design and optimization of a novel ducted fan propulsion system, complemented by multi‐element wings inspired by Handley Page and the aerodynamic Channel Wing concept.
Adrian Niță +4 more
wiley +1 more source
On Cavitation Aggressiveness and Cavitation Erosion on Marine Propellers using a URANS Method [PDF]
, 2018 Cavitation occurrence on the propeller blades may have severe effects, such as cavitation noise, vibrations in the aft ship, and material damage on propellers or rudder. While noise and vibrations affect comfort and stability, cavitation erosion might lead to a significant reduction of the propeller efficiency and structural integrity.
Melissaris, Themistoklis (author) +2 more
openaire +3 more sources
Artificial Organs, EarlyView.This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier +6 more
wiley +1 more source
Prediction of the unsteady turbulent flow in an axial compressor stage. Part 2: Analysis of unsteady RANS and LES data [PDF]
, 2015 This paper presents the analysis of URANS and LES database in a stage of an axial subsonic compressor. Details about numerical methods and comparison with experiments can be found in a companion paper.
Gourdain, Nicolas
core +2 more sources