Sound absorption of porous materials perforated with holes having gradually varying radii
Xue‐Wei Liu, Xiaowen Ma, Chenlei Yu, Fengxian Xin
Topics & Concepts
Materials sciencePorosityPerforationAbsorption (acoustics)DissipationMechanicsNoise reduction coefficientAcousticsAcoustic impedancePorous mediumSound energyAirflowFinite element methodComposite materialSound (geography)Structural engineeringPhysicsThermodynamicsEngineeringPunchingUltrasonic sensorAcoustic Wave Phenomena ResearchNoise Effects and ManagementAerodynamics and Acoustics in Jet Flows