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Can I change the group speed at wavenumber? [Dispersion Curves for a Fluid-Filled Elastic Pipe ,Application ID: 53431 ]
Posted 10 giu 2018, 00:33 GMT-4 Structural & Acoustics, Fluid & Heat, Acoustics & Vibrations 0 Replies
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Hi, I saw the example comsol : ' Application ID : 53431 ' ' Dispersionsion-filled Elastic Pipe '. But the final result, the dispersion curve, is wavenumber - frequency plot. What should I do to change for the group velocity - frequency plot? ....how to convert wavenumver to velocity....
Figure 1 is the result of the comsol example and Figure 2 is the result I want. Is this possible? If possible, what part of that example should I change?
https://cdn.comsol.com/wordpress/2017/11/dispersion-curves-for-an-elastic-pipe-1D-COMSOL-Multiphysics-plot.png
https://openi.nlm.nih.gov/imgs/512/65/4435125/PMC4435125_sensors-15-05151-g003.png
Hello Sunho Lee
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