Hi Spencer Stahl,
I understand that you want to model acoustic feedback in fluid flows using Simulink, specifically want to propagate a signal in both time and space within a 1D domain. Also, you want to visualize how a signal moves back and forth in this domain.
Simulink primarily operates in the time domain, modeling spatial behavior requires a creative approach, such as discretizing the spatial domain into segments and using delay blocks to simulate propagation. You can follow the below steps to acheive the same:
- Discretize the Spatial Domain: Break down the 1D spatial domain into discrete segments. Each segment represents a point in space at which you'll calculate the signal's value. This approach mimics spatial propagation by allowing the signal to move through these segments over time.
- Use Delay Blocks for Propagation: Simulate the signal propagation through space by using delay blocks. Each delay block represents the time it takes for the signal to travel from one segment to the next. By chaining these blocks, you can simulate the back-and-forth movement of the signal in your 1D domain.
- Implementing Feedback: To model the signal reflecting back, use a feedback loop. The signal's direction changes at the domain boundaries by inverting the signal or using a switch block that changes the path of the signal based on certain conditions, simulating reflection.
- Visualizing the Signal: While Simulink does not directly offer a way to visualize spatial propagation as an animation, you can use scopes or logging to observe how the signal's value changes over time at each segment. Alternatively, MATLAB scripts can process the logged data to create animations or spatial plots.
For an introduction to using delay blocks, refer to the documentation at https://www.mathworks.com/help/simulink/slref/transportdelay.html.
For information on logging data in Simulink for further analysis, visit:
Hope this helps!
