1南京航空航天大学航空宇航学院结构强度研究所，南京，210016；2 Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, U.S.A
Influence of viscous liquid to the propagation of torsional wave in pipes
Kong Wei-liang1, Zhou Li1, Fuh-Gwo Yuan2
1 College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China; 2 Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695, U.S.A
This paper deals with the torsional waves propagating in a pipe contacting with viscous liquid theoretically by supposing the flow is laminar. The dispersion and attenuation curves are investigated to determine the influence of viscosity of liquid on the torsional waves, and the relations between attenuation of first torsional mode and viscosity/density of liquid, for the application of torsional wave in non-destructive testing in pipes. The numerical results agree well with the experimental result in literature; the hypothesis of laminar flow is proved; and the advantages of first torsional mode wave in damage inspection are shown.
孔维梁;周丽;Fuh-Gwo Yuan. 粘性液体对管道中扭转导波传播特性的影响研究[J]. , 2012, 31(11): 48-53.
Kong Wei-liang;Zhou Li;Fuh-Gwo Yuan. Influence of viscous liquid to the propagation of torsional wave in pipes. , 2012, 31(11): 48-53.
2012, Vol. 31 
