Abstract

Acoustic pressure resonances in liquid-transporting pipe systems affect performance and safety. Accurate predictions of acoustic pressure resonances are a necessary requirement for any practical piping system undergoing some acoustic excitations. Thus, understanding the nature of acoustic wave propagation in water filled piping systems needs to be established based on fundamental experiments and analysis. To investigate acoustic resonance, no flow experiments with different configurations, wall thicknesses and materials were compared with theoretical and numerical calculations. This paper presents an experimental study showing that how linear wave theory, based on a transmission matrix method, and ABAQUS as commercial software do predict the acoustic resonance frequency peaks from 20 to 500 Hz, and discusses the resonant frequency shifts. Study of tube wall thickness, material (stainless steel and Aluminum), some equal and unequal branch configurations and combination of all investigated parameters for “Closed-end” tubes are discussed.

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