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October 2014 – The wake
Quietly, the duck swims across the water surface, its legs paddling silently underneath. Behind it, a small wake spreads distinctly, disturbing the otherwise completely still water surface. The sun is setting over the little lake – the oblique light causes … Continue reading
Posted in Water Calendar 2014
Tagged ship wakes, water waves, wave propagation
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March 2014 – The fish and the propeller
Flip, flap, flip, flap, the tail fin of the trout swishes to and fro, thrusting the fish forward in the still water. Silently it speeds away under the surface. Seemingly without effort it moves, leaving a series of wakes behind. … Continue reading
Posted in Water Calendar 2014
Tagged alternative water flow, boat propulsion, fish locomotion, flow visualization, ink images, karman vortex street, oscillary wave motion, propeller efficiency, vortex street, water waves, wave energy
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