The e-book presents the habits of thermally and mechanically induced acoustic waves and the interplay of these strain waves with stream fields. The research focuses on two necessary results of the acoustic-fluid dynamic interactions. These results are termed as ?thermoacoustic convection? and ?acoustic streaming? and are analyzed utilizing computational fluid dynamics and experimental strategies. Thermoacoustic convection and acoustic streaming represent an instance of nonzero imply oscillatory flows in compressible media. The quick and very long time habits of strain waves induced by fast heating in compressible gas-filled two-dimensional enclosures was numerically simulated first. The interactions of mechanically pushed acoustic waves and related main oscillatory and secondary regular flows inside a viscous fluid have been studied subsequent. The e-book ought to assist shed some gentle on the physics of acoustically or thermally induced nonzero imply oscillatory flows and needs to be helpful to professionals in warmth switch and fluids space, or anybody else who could also be contemplating using nonzero imply oscillatory flows in warmth elimination purposes.