Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Flow sound interaction"”.
-
Flow-sound interaction mechanism of a single spirally finned cylinder in cross-flow
… in the proximity of such noise. Since the flow-acoustic phenomenon of finned tubes are not well understood, it can be dangerously unpredictable. Therefore in this thesis, the flow-sound interaction mechanism of a single spirally finned cylinder in cross-flow is investigated. Moreover, a …
-
Parametric investigation of flow-sound interaction mechanism of circular cylinders in cross-flow
Flow-excited acoustic resonance in heat exchangers has been an ongoing issue for the past century. The main challenge in this issue, is in the actual prediction of the resonance occurrence. This is due to the complexity of the flow-sound interaction mechanism that takes place between the packed …
-
Effect of diameter ratios on the flow-sound interaction of the straight circular finned cylinders
… in heat exchangers could be susceptible to the flow-excited acoustic resonance that generates intense pressure fluctuations, which may lead to premature fatigue failure of the tubes. This thesis explores the unsteady flow development around circular finned tubes and its role in the excitation of …
-
Effect of self-excited acoustic perturbations on flow characteristics around rectangular cylinders with varied geometrical aspects
… alterations to the downstream edges amplify the sound pressure level (SPL) during resonance. Particle image velocimetry (PIV) measurements further accentuate the crucial role of incidence angles in modulating flow structures, vortex generation, and wake dynamics. The combined effect of a small …
-
The aeroacoustics response and shear layer dynamics of confined cavities subject to low Mach number turbulent flow
Cavities exposed to low Mach number flow in various engineering applications are often liable for generating flow-excited acoustic oscillations, resulting in large acoustic amplitudes and vibrations. This compromises the safety and reliability of critical equipment due to a phenomenon attributed to …
-
Numerical investigation of air vehicle noise propagation effects
… Each of these studies is concentrated on the sound propagation mechanisms that are dominant for each case and uses a numerical method that is best suited for it in terms of mechanisms incorporated and cost effectiveness. The far-field study of this thesis focuses on the nonlinear propagation …