ACOUSTICS 2024 | ioa

Our #ASAStandards Spotlight today is ASA/ANSI S12.11-2013/Part 1 / ISO 10302-1:2011 (R2023) - a newly reaffirmed standard that specifies methods for measuring the airborne noise emitted by small air‐moving devices: https://global.ihs.com/doc_detail.cfm?&csf=ASA&item_s_key=00438295&item_key_date=760915&input_doc_number=ASA/ANSI%20S12.11-2013/PART%201%20/%20ISO%2010302-1:2011%20(R2023)&input_doc_title=&org_code=ASA&input_asa_filter=ASA

#Noise #PhysicalAcoustics #AirborneNoise

ASA/ANSI S12.11 PART 1 : AMERICAN NATIONAL STANDARD ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED AND STRUCTURE-BORNE VIBRATION INDUCED BY SMALL AIR-MOVING DEVICES - PART 1: AIRBORNE NOISE MEASUREMENT (A NATIONALLY ADOPTED INTERNATIONAL STANDARD) * SAME AS ISO 10302-1 *

A possible aerodynamic mechanism for the generation of infrasound caused by the turbulent air flow around the geometric irregularities of the surface of meteorological front is proposed.
https://doi.org/10.1121/2.0001713

#acoustics #PhysicalAcoustics

Infrasound and Internal Gravity Waves generated by Meteorological Fronts

The results of study of temporal variations of the characteristics of infrasound and internal gravity waves (amplitudes, coherences, grazing angles, azimuths and horizontal phase speeds) detected d...

Scitation: Acoustical Society of America
Born approximation can be used for calculating the acoustic radiation force for acoustofluidic separation: https://doi.org/10.1121/2.0001646
#acoustics #PhysicalAcoustics