Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2013, Vol. 10, No. 4, pp. 298-307
Experimental study of transformation of gravity-capillary waves due to a current induced by a bubble sheet
S.A. Ermakov
1, I.A. Kapustin
1, T.N. Lazareva
2, R.R. Kalimulin
31 Institute of Applied Physics RAS; Russian State Hydrometeorological University; Lobachevsky’s Nizhny Novgorod State University, Nizhny Novgorod, Russia; Saint-Petersburg, Russia; Nizhny Novgorod, Russia
2 Institute of Applied Physics RAS, Nizhny Novgorod, Russia
3 Institute of Applied Physics RAS; Lobachevsky’s Nizhny Novgorod State University, Nizhny Novgorod, Russia; Nizhny Novgorod, Russia
Effects of transformation of gravity-capillary waves on nonuniform currents induced by rising bubbles are investigated in wave tank experiment. Structure of these currents is analyzed, the currents are characterized by strong inhomogeneity both in horizontal and vertical directions, achieving a maximum in a surface water layer of some mm thickness. Transformation of gravity-capillary waves due to the currents is studied, it is obtained that the length of the wave propagating in the area of the current decreases while the amplitude increases, and wave blocking occurs at certain conditions.
Keywords: пузырьковая пелена, неоднородные течения, гравитационно-капиллярные волны, блокировка волн, bubble sheet, nonuniform currents, gravity-capillary waves, wave blocking
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