Recent advances in feature extraction techniques for high-speed flowfields
S Unnikrishnan - Progress in Aerospace Sciences, 2023 - Elsevier
Abstract Space–time scale-resolved diagnostic and computational campaigns routinely
produce high-fidelity multi-disciplinary truth-model quality datasets for complex …
produce high-fidelity multi-disciplinary truth-model quality datasets for complex …
On the application of wavelet transform in jet aeroacoustics
Wavelet transform has become a common tool for processing non-stationary signals in many
different fields. The present paper reports a review of some applications of wavelet in …
different fields. The present paper reports a review of some applications of wavelet in …
Screech-tone prediction using upstream-travelling jet modes
The purpose of this paper is to characterise and model the A1 and A2 screech modes in
supersonic jets operating at off-design conditions. The usual screech-modelling scenario …
supersonic jets operating at off-design conditions. The usual screech-modelling scenario …
Proper orthogonal decomposition, dynamic mode decomposition, wavelet and cross wavelet analysis of a sloshing flow
Internal hydrodynamics and its coupling with structural dynamics are non-negligible
processes in the design phase of aerospace systems. An improved understanding of the …
processes in the design phase of aerospace systems. An improved understanding of the …
Wavelet-based pressure decomposition for airfoil noise in low-Mach number flows
The paper applies a wavelet filtering method based on the recursive denoising algorithm to
airfoil noise in low-Mach number flows. The pressure field around the airfoil is decomposed …
airfoil noise in low-Mach number flows. The pressure field around the airfoil is decomposed …
Acoustic feedback loops for screech tones of underexpanded free round jets at different modes
XR Li, XW Zhang, PF Hao, F He - Journal of Fluid Mechanics, 2020 - cambridge.org
The flow structures and the acoustic feedback loops of underexpanded round jets are
investigated by numerical simulations. The jets have a Mach number of 1 at the nozzle exit …
investigated by numerical simulations. The jets have a Mach number of 1 at the nozzle exit …
Correlation between air pollution and weather data in urban areas: Assessment of the city of Rome (Italy) as spatially and temporally independent regarding pollutants
G Battista, R de Lieto Vollaro - Atmospheric Environment, 2017 - Elsevier
Air pollution represents the biggest environmental risk for health. It is so widespread and it
represents one of the main problems of the worldwide, especially because it is emitted by so …
represents one of the main problems of the worldwide, especially because it is emitted by so …
Sound source and pseudo-sound in the near field of a circular cylinder in subsonic conditions
It is well known that the pressure fluctuations on both sides of a cylinder and those in its
oscillating near-wake region are both sound sources at low Reynolds and Mach numbers …
oscillating near-wake region are both sound sources at low Reynolds and Mach numbers …
A wavelet-based separation method for tonal and broadband components of low Reynolds-number propeller noise
Propeller noise generally exhibits a rich mixture of tonal and broadband components related
to different physical mechanisms. Specifically, the tones are characterized by having …
to different physical mechanisms. Specifically, the tones are characterized by having …
Experimental characterization of pressure and friction factor in an interior subchannel of a 61-pin wire-wrapped rod bundle with a porous blockage
Comprehending and counteracting accident conditions presented by impedances of flow in
diminutive subchannels of a Liquid Metal Fast Reactor (LMFR) hexagonal rod bundle are …
diminutive subchannels of a Liquid Metal Fast Reactor (LMFR) hexagonal rod bundle are …