Capillary waves - surface standing

With capillary waves I need to calculate where surface standing waves will occur.


Assume mediums are pure water and air.
Assume the capillary waves are bounded in a box such that the wavelength matches the height of the water and width/length of the box.
Assume effects of gravity and interference are neglible.
Assume the box is vibrated sinusoidally from the bottom at a frequency of 100KHz.


The standing waves will appear on the surface of the water in a triangular lattice (I believe). But what distance between nodes? I am too long in the tooth to do the calculations myself, so any pointers, websites, resources, thoughts would be welcome.
 

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