Matthew Wright 👨🏼🦼 @mcmwright.bsky.social · Aug 31 Before I switch to the new preferred colourmap, here's a couple of animations I made for a short course I'm teaching on that use bwr for consistency with the rest of the slides (sorry). So, I present a solution of the 'wavy wall' problem in acoustics
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A bending wave travels up the (infinite) wall on the left, and in so doing displaces the adjacent compressible fluid so as to radiate a plane into that (infinite) fluid half-space