Time-domain harmonic balance method for aerodynamic and aeroelastic simulations of turbomachinery flows [PDF]
, 2013 A time-domain Harmonic Balance method is applied to simulate the blade row interactions and vibrations of state- of-the-art industrial turbomachinery configurations. The present harmonic balance approach is a time-integration scheme that turns a periodic
Besicovitch A.S. +5 more
core +1 more source
Flow distortion measurements in convoluted aero engine intakes [PDF]
, 2015 The unsteady flowfields generated by convoluted aero engine intakes are major sources of instabilities that can compromise the performance of the downstream turbomachinery components.
Chiereghin, Nicola +2 more
core +2 more sources
Experimental study of the instationary flow between two ducted Counter-rotating rotors [PDF]
, 2013 The purpose of this work is to study experimentally the aerodynamic characteristics of a subsonic counter-rotating axial-flow fans system operating in a ducted configuration.
BAKIR, Farid +4 more
core +6 more sources
Trailing edge noise theory for rotating blades in uniform flow [PDF]
, 2013 This paper presents a new formulation for trailing edge noise radiation from rotating blades based on an analytical solution of the convective wave equation. It accounts for distributed loading and the effect of mean flow and spanwise wavenumber.
Agarwal, Anurag +2 more
core +1 more source
Numerical analysis of the hydrodynamic behaviour of immiscible metallic alloys in twin-screw rheomixing process [PDF]
, 2006 A numerical analysis by a VOF method is presented for studying the hydrodynamic mechanisms of the rheomixing process by a twin-screw extruder (TSE). The simplified flow field is established based on a systematic analysis of flow features of immiscible ...
Fan, Z, Tang, H, Wrobel, L C
core +1 more source
Intake Ground Vortex Prediction Methods [PDF]
, 2011 For an aircraft turbofan engine in ground operations or during the take-off run a ground vortex can occur which is ingested and could potentially adversely affect the engine performance and operation.
MacManus, David G., Murphy, J. P.
core +1 more source
Intake ground vortex characteristics [PDF]
, 2011 The development of ground vortices when an intake operates in close proximity to the ground has been studied computationally for several configurations including front and rear quarter approaching flows as well as tailwind arrangements.
MacManus, David G. +2 more
core +1 more source
Influence of design parameters on the global performances of low-speed counter-rotating axial-flow fans [PDF]
, 2014 The present work aims at experimentally investigating the effects of some parameters on the performances of a counter-rotating stage, and on the instationary flow between the rotors.
BAKIR, Farid +2 more
core +4 more sources
Meikuang AnquanTo enhance the aerodynamic performance of contra-rotating fan and ensure the safe working environment of mine, based on feedforward neural network agent model and genetic algorithm, the multi-objective optimization of contra-rotating fan double-row ...
Xinyu ZHANG, Hua JIANG, Wuqi GONG
doaj +1 more source
Axial Spacing Effects on Rotor-Rotor Interaction Noise and Vibration in a Contra-Rotating Fan
International Journal of Aerospace Engineering, 2019 Because of the potential technical advantages, the contra-rotation technology has become a renewed interest in aviation and other applications. Contra-rotation increases efficiency in comparison with the single-rotor design, but this advantage is not ...
Hengxuan Luan +4 more
doaj +1 more source