Results 81 to 90 of about 12,206 (226)
Computation of acoustic sources for the landing gear during the take-off and landing [PDF]
FME Transactions, 2013 The sound which is generated from the aircraft during the take-off and landing is one of the main problems for the people who live in the areas near the airport.
Jazarević Vladimir, Rašuo Boško
doaj
Fluidic Ultrasound Generation for Non‐Destructive Testing
Advanced Materials, Volume 36, Issue 18, May 2, 2024.Air‐coupled ultrasound enables material characterization and fault detection for specimens that are very large or do not allow contact with other materials. This study presents a novel fluidic transducer that can withstand harsh environments and generates a high‐amplitude ultrasonic signal without impedance mismatch to air.
Benjamin Bühling +2 more
wiley +1 more source
The Update of an Aerodynamic Wind-Tunnel for Aeroacoustics Testing
Journal of Aerospace Technology and Management, 2014 This paper describes the update and characterization of a previously pure aerodynamics wind-tunnel into a facility able to simultaneously execute aerodynamics and aeroacoustics testing. It is demonstrated that the application of high-performance acoustic
Leandro Dantas Santana +3 more
doaj
Simulating Stirred Tank Reactor Characteristics with a Lattice Boltzmann CFD Code
Chemical Engineering &Technology, Volume 47, Issue 3, Page 586-595, March 2024.There is a need for reliable models of mixing in stirred tanks, which is widely used in the chemical and process industry but complex and not fully understood. A lattice Boltzmann code with a large eddy simulation turbulence model was used to determine power numbers and mixing times in stirred tanks with different impellers.
Jule Kersebaum +3 more
wiley +1 more source
Biofilm therapy for chronic wounds
International Wound Journal, Volume 21, Issue 2, February 2024.Abstract Chronic wounds have been a major factor of serious harm to global public health. At present, it is known that almost all chronic wounds contain biofilms, which seriously hinder the healing process. Removal of biofilms can effectively promote the healing of chronic wounds.
Yang Liu +3 more
wiley +1 more source
Prediction and Control of Broadband Noise Associated with Advanced Air Mobility—A Review
Applied SciencesThis review presents an overview of advanced air mobility broadband noise (BBN) prediction and control techniques, highlighting significant advancements in various prediction models.
Jie Hua, Reda R. Mankbadi
doaj +1 more source
The Technique of MIEELDLD in Computational Aeroacoustics [PDF]
Journal of Applied Mathematics, 2012 The numerical simulation of aeroacoustic phenomena requires high‐order accurate numerical schemes with low dispersion and low dissipation errors. A technique has recently been devised in a Computational Fluid Dynamics framework which enables optimal parameters to be chosen so as to better control the grade and balance of dispersion and dissipation in ...
openaire +5 more sources
An integral formulation for wave propagation on weakly non-uniform potential flows
, 2016 An integral formulation for acoustic radiation in moving flows is presented. It is based on a potential formulation for acoustic radiation on weakly non-uniform subsonic mean flows.
Astley, R. Jeremy +4 more
core +3 more sources
Machine Learning for Feature Identification and Characterization of Fluid Flow Around a Cylinder Using Airborne Acoustic Signature [PDF]
Journal of Applied and Computational MechanicsThis study employs machine learning (random forest, adaptive boosting, and multilayer perceptron) to identify flow features around a cylinder using airborne acoustic signatures.
Zahra Shah Hosseini, Arman Mohseni
doaj +1 more source
Experimental Acoustic Investigation of Rotor Noise Directivity and Decay in Multiple Configurations
AerospaceIn the framework of the MATIM project, an acoustic test campaign was conducted on a platform derived from a commercial-class quadcopter within the CIRA semi-anechoic chamber.
Giovanni Fasulo +3 more
doaj +1 more source