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Effect of fluid flow on guided waves in pipe
Posted 2023年3月10日 GMT-5 02:31 Computational Fluid Dynamics (CFD), Structural Mechanics 0 Replies
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Hi, I have modelled a steel pipe with piezoelectric transducers(PZT-5H) attached on it and did a time dependent study. I used solid mechanics and electrostatic module with piezoelectric multiphysics. Next I want to model fluid flow in pipe and observe the effect on the wave modes(i.e. change in the amplitude and phase). So I used to turbulent flow module and specified inlet velocity at one end and pressure at the other end and water is used as the material. I used Linearized Navier-Stokes and Aeroacoustics-structure boundary. Also background fluid flow coupling is used in the multiphysics I carried out a stationary study for the turbulent flow, then mapping for background fluid flow coupling and then time dependent study using the mapping solution for solid mechanics, electrostatics, Linearized Navier-stokes. The signals I receive are different from the original but if I change the inlet velocity or the viscosity it does not have any effect on the signals. Also how to add attenuation in the signals. The velocity and viscosity should show some change in the signals. I don't know if I am right. Please help me with this.
Hello Sheetal Patil
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