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Q: How can I create a variable that will allow me to plot the acoustic intensity on a sample plane in CFD Post?

- April 5, 2023 at 2:32 pm
  
  FAQ
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  A: Acoustic Intensity is a vector field that has the same direction as Velocity, but the magnitude of Velocity*Pressure. To create this field in CFD Post 1. Go to the Variables tab in CFD Post, right-click to create a new variable and call it “Acoustic Intensity” 2. Keep “Method” as Expression 3. Select Vector Type 3. In the 3 component Expression text widgets that define the vector, type “Velocity u*Pressure”, ” Velocity v*Pressure” and “Velocity w*Pressure” 4. Check off Calculate Global Range and click Apply This will create a new vector field variable called “Acoustic Intensity” that can be plotted like any other vector variable.

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