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New Insights into Subharmonic Waves in Fluid Dynamics
#FluidDynamics @APSphysics @PhysRevFluids
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"All subharmonic waves are not Faraday waves".
Imagine small droplets resting on a surface, creating ripples similar to dropping a pebble in the water. A recent discovery by scientists has revealed a fascinating twist: these ripples, known as waves, don't always follow the expected patterns.
Traditionally, it was believed that shaking the surface would cause waves in the droplets to respond in a particular manner. However, this new finding suggests that the waves at the edges of the droplets might actually have a more significant influence on how the ripples take shape.
In the past, researchers thought that a specific type of wave called subharmonic waves indicated the presence of something called Faraday waves. Yet emerging research indicates that this connection might not hold true universally. Rather than the shaking itself, it's proposed that the waves occurring at the droplets' edges play a key role in generating these subharmonic waves.
Credits -
Debashis Panda, Lyes Kahouadji @LKahouadji , Omar Matar @MatarLab , Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom
Seungwon Shin, Department of Mechanical and System Design Engineering, Hongik University, Seoul 04066, Republic of Korea
Jalel Chergui, Damir Juric,
Université Paris Saclay, Centre National de la Recherche Scientifique (@CNRS), Laboratoire Interdi sciplinaire des Sciences du Numérique (#LISN), 91400 Orsay, #France
doi.org/10.1103/APS.DF…
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