@inproceedings{cf7a2d2034ac425ab2f5327166d584dc,
title = "Nonlinear dynamics of unsteady wakes",
abstract = "An experimental investigation is conducted to determine the effect of mean flow unsteadiness on the vortex street behind a plane wake. Complex demodulation and bispectral analysis techniques are used to obtain quantitative measurements of the modulation and nonlinear couplings generated by the mean flow unsteadiness. The results show that low frequency mean flow unsteadiness increases the amplitude and phase modulation levels of the frequency component that corresponds to the vortex street. This increase in modulation can be seen as an outcome of an increase in the level of nonlinear couplings between the mode at the unsteadiness frequency, the vortex street frequency component and its harmonics. A simple numerical example is presented to show that modulation effects can be seen as variations in the spacings between the successive elements of the vortex street.",
author = "Miksad, {R. W.} and Hajj, {M. R.} and Solis, {R. S.} and Powers, {E. J.}",
year = "1992",
language = "English",
isbn = "1880653036",
series = "Proc Second Int Offshore Polar Eng Conf",
pages = "232--236",
booktitle = "Proc Second Int Offshore Polar Eng Conf",
note = "Proceedings of the Second International Offshore and Polar Engineering Conference ; Conference date: 14-06-1992 Through 19-06-1992",
}