Wave-Forced Barotropic Currents

Wave dynamics in the extended forced KdV

The extended forced Korteweg-de Vries equation (efKdV) is a mathematical model for simulating the interaction of a shallow layer of fluid with external forcing agents. Herein we consider the dynamics of the efKdV when the forcing is assumed to be small and spatially periodic with a timeperiodic variation of the phase. We show that a good heuristic understanding of the dynamics for a certain cla...

Forced Vibrations for a Nonlinear Wave Equation

Experiments on Internal Wave Resonance in Periodically Forced Lakes

Laboratory experiments were conducted to determine the steady state internal wave response of a periodically forced long and narrow lake. The system is two-layer stratified and is subjected to periodic forcing over a wide frequency range. The ratio of the forcing frequency (f) to horizontal mode-one (H1) internal seiche frequency (fH1) governs the system response. For f ≥ 2fH1, highermode inter...

Forced synchronization of spaser by an external optical wave.

We demonstrate that when the frequency of the external field differs from the lasing frequency of an autonomous spaser, the spaser exhibits stochastic oscillations at low field intensity. The plasmon oscillations lock to the frequency of the external field only when the field amplitude exceeds a threshold value. We find a region of values of the external field amplitude and the frequency detuni...

ParameterEstimation of Respiratory Impedance Forced Complex - wave Oscillations

1) Use of the complex wave oscillation method provided a measurement range of over 9 cmH201lls with a resolution of O.18 cmH20/1ls. 2) The respiratory system was expressed as a two-compartment model. By expressing the circuit characteristics as phasor loci, a method was shown whereby individual impedance parameter values could be derived frorn the measured impedance phasor loci. S) Vnder enflur...