The purpose of this research is to investigate the
beam vibration induced acoustic streaming. Analytical
results show that the beam vibrating in standing
waveforms scatters the acoustic waves into the free
space with a larger attenuation coefficient and
longer propagating traveling wavelength than those of
the plane wave. In contrast to a constant Reynolds
stress in the plane wave, the Reynolds stress
generated by such acoustic wave is expected to drive
the free space streaming away from the anti-nodes and
towards nodes of the standing wave vibration. The
sonic and ultrasonic streamings...

Boundary layer receptivity of 2D laminar incompressible flow over a compliant surface is investigated numerically. Free stream acoustic waves, propagating parallel to a flat plate with a compliant surface is considered. In this study, mean flow is approximated by a Blasius type eqn. and flow perturbation by the LUBLE eqn. Perturbation waves in the compliant layer are modeled by a set of PWE eqns. Interaction occurs along the interface between flow and the compliant surface. Interaction proceeds in accordance with continuity of velocity and stresses at the interface. The coupled...