47 citations · 138 across the 11 of their papers we have counts for
5 papers · 1 filter
On the threshold of 1/2 order subharmonic emissions in the oscillations of ultrasonically excited bubbles
A. J. Sojahrood, N. R. Shirazi, H. Haghi +2
The pressure threshold for 1/2 order subharmonic (SH) emissions and period doubling during the oscillations of ultrasonically excited bubbles is thought to be minimum when the bubb…
Classification of the mechanisms of wave energy dissipation in the nonlinear oscillations of coated and uncoated bubbles
A. J. Sojahrood, H. Haghi, N. R. Shirazi +2
Acoustic waves are dissipated when they pass through bubbly media. Dissipation by bubbles takes place through thermal damping (Td), radiation damping (Rd) and damping due to the fr…
Nonlinear energy loss in the oscillations of coated and uncoated bubbles: Role of thermal, radiation damping and encapsulating shell at various excitation pressures
AJ Sojahrood, H Haghi, Q Li +3
A simple generalized model (GM) for coated bubbles accounting for the effect of compressibility of the liquid is presented. The GM was then coupled with nonlinear ODEs that account…
Critical corrections to formulations of nonlinear energy dissipation of ultrasonically excited bubbles and a unifying parameter to asses and enhance bubble activity in applications
AJ Sojahrood, H Haghi, R Karshafian +1
Nonlinear oscillations of bubbles can significantly increase the attenuation of the host media. Optimization of bubble related applications needs a realistic estimation of the medi…
On the collective behavior of interacting polydisperse microbubbles
H. Haghi, AJ Sojahrood, M. C. Kolios
Exploiting the full potential of MBs for applications requires a good understanding of their complex dynamics. Improved understanding of MB oscillations can lead to further enhance…