Ideal efficiency of propellors based on Theodorsen's theory: an review and computer study, with extended plus simplified charts

Spectra of noise and amplified turbulence emanating from shock-turbulence interaction: two scenarios

A transonic propeller of triangular plan form (an extension)

Subjective loudness of sonic-boom: N-wave and minimized ('low-boom') signatures

Development of a portable sonic boom simulator for field use

A deterministic model of sonic boom propagation through a turbulent atmosphere

The propagation of a weak normal shock wave through a turbulent atmosphere is studied in terms of an idealized model. The turbulent field is assumed to be weak and represented by the superposition of two inclined shear waves of opposite inclination to the mean flow. The resulting flow is of a cellular nature. The cells are rectangular in shape...

Supersonic turns without superbooms

Eddy Mach wave noise from a simplified model of a supersonic mixing layer

Quadrupole correlations governing the pattern of jet noise

Acoustic energy flux from shock-turbulence interaction

Refraction of sound by jet flow or jet temperature

The noise of aircraft

Our understandirig of the noise from jets, compressors; boundary layers, and sonic booms is still developing. In this lecture current concepts are presented, drawn in part from recent theoretical and experimental research. Where possible simple physical models of the major features of the noise and vibration phenomena are given. The noise from...

Aerodynamic sound from fluid dilitations; a theory of the sound from jets and other flows

Investigations of aerodynamically generated sound

A theory of the sound from jets and other flows in terms of simple sources

The sound generated by interaction of a single vortex with a shock wave

Theory of wings in slipstreams

Canadian research in aerodynamic noise

Canadian research on flow noise and some aspects of the aircraft noise problem is described . The work was done at the Defence Research Board, the University of Toronto Institute of Aerophysics and A. V. Roe (Canada) Ltd. Specific experimental and/ or theoretical investigations include: Aeolian Tones; Boundary Layer Noise (rigid wall and...