Title :
Finite element simulation of acoustic wave propagation within flowing media
Author :
Eccardt, Peter-Christian ; Landes, Hermann ; Lerch, Reinhard
Author_Institution :
Siemens AG, Munich, Germany
Abstract :
A finite element method for acoustic wave propagation is established, taking into account the influence of a time-independent inhomogeneous flow on the acoustic waves. The simulation scheme is verified for homogeneous flow and validated with geometrical acoustics for inhomogeneous flow profiles. As an application, the wave propagation within ultrasound flow meters for liquids is computed for different flow profiles
Keywords :
acoustic wave propagation; finite element analysis; flow measurement; flowmeters; geometrical acoustics; laminar flow; pipe flow; turbulence; ultrasonic applications; underwater sound; wave equations; acoustic wave propagation; finite element simulation; flow duct; flowing media; geometrical acoustics; homogeneous flow; inhomogeneous flow profiles; laminar flow profiles; modified wave equation; piezoelectric transducer model; time-independent inhomogeneous flow; turbulent flow profiles; ultrasound flow meters; Acoustic propagation; Acoustic waves; Costs; Finite element methods; Fluid flow; Fluid flow measurement; Partial differential equations; Time measurement; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-3615-1
DOI :
10.1109/ULTSYM.1996.584157
