Results 71 to 80 of about 4,706 (230)
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
A Fourier pseudospectral method for some computational aeroacoustics problems
, 2006 A Fourier pseudospectral time-domain method is applied to wave propagation problems pertinent to computational aeroacoustics. The original algorithm of the Fourier pseudospectral time-domain method works for periodical problems without the interaction ...
Zhang, Xin, Huang, Xun
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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
, 2003 The integration of propulsion and airframe is fundamental to the design of an aircraft system. Many considerations influence the integration, such as structural, aerodynamic, and maintenance factors.
Aeroacoustics Branch, Russell H. Thomas
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Aeroacoustics of Transonic Shock-Boundary Layer Interactions
, 2007 The interaction of a spatially developing supersonic turbulent boundary layer with a normal shock wave is analyzed by means of direct numerical simulation of the compressible Navier-Stokes equations.
Matteo Berardini +5 more
core +1 more source
First joint CEAS/AIAA aeroacoustics conference. Proceedings. Vol. 1
, 1995 The volumes I and II of the proceedings of the First Joint CEAS/AIAA Aeroacoustic Conference held in June 12-15, 1995 in Munich, Germany contain (69+71=) 140 papers. The papers deal with the following scientific subjects: computational aeroacoustics; jet
American Inst. of Aeronautics and Astronautics (AIAA), Washington, DC (United States) +2 more
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Numerical investigation of maneuvering drone aeroacoustics
, 2023 openIn recent years, UAVs have gained interest across applications from ecommerce to search and rescue missions. However, their noise generation is still one of their main limits.
PERON, FILIPPO
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Aeroacoustics of a coaxial rotor in level flight [PDF]
, 2008 The aeroacoustic characteristics of a coaxial system with teetering rotors in level forward °ight are com- pared to those of an equivalent articulated single rotor with the same solidity.
Brown, R.E. +5 more
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