Eddy viscosity for time reversing waves in a dissipative environment.

摘要: We present new results for the time reversal of weakly nonlinear pulses traveling in a random dissipative environment. Also we describe theory calculating eddy viscosity waves propagating over surface. The turbulent is calculated from first principles, namely, without imposing any stress-strain hypothesis. A viscous shallow water model considered and its effective characterized. also show that can still be reversed under weak dissipation. Incoherently scattered signals are recompressed, both transmission as well reflection. Under nonlinear, regime, dissipation only affects refocused pulse profile regarding amplitude, but shape not corrupted. Numerical experiments presented.