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.
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Showing 1 to 6 of 6 for “"Turbulent Wall Jet"”.
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A Study of Sound Generated by a Turbulent Wall Jet Flow Over Rough Surfaces
The far field acoustics generated by turbulent flow over rough surfaces has been experimentally investigated in an acoustically treated wall jet facility. The facility allows direct measurement of the far field sound from small patches of surface roughness, without contamination from edge or other …
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The Noise of a Boundary Layer Flowing Over Discrete Roughness Elements
… flow speeds. Using the Virginia Tech Anechoic Wall Jet Facility, far field noise was recording for the flow of a turbulent wall jet boundary layer over cubes, hemispheres, and gravel, with element heights in the range of 14.3 - 55.2% of the boundary layer thickness. The sound radiated from the …
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Temporal Numerical Simulations of Turbulent Coanda Wall Jets
… modeling techniques is carried for the turbulent wall jet over aconvex surface (Coanda wall jet.) The simultaneous presence of multipleinstability mechanisms and the interaction with the turbulence dynamics at thesolid boundary produces a unique combination of different large …
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Scaling of Convective Heat Transfer in Laminar and Turbulent Wall Jets With Effects of Freestream Flow and Forcing
… as a canonical two-dimensional flow, the laminar wall jet has not been extensively studied using modern computational fluid dynamic methods. The plane laminar wall jet with a specified velocity profile at the jet exit is numerically investigated. In these types of flows in which the flow field …
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Near wall high resolution particle image velocimetry and data reconstruction for high speed flows
… measuring high speed, high magnification, near wall flow fields. Previous attempts to perform measurements such as this have been unsuccessful because of both limitations in equipment as well as proper methodology for processing of the data. This work addresses those issues and successfully …
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Bio-Inspired Trailing Edge Noise Control: Acoustic and Flow Measurements
… unknown. This thesis describes a comprehensive wall jet experiment to measure the flow effects near the bio-inspired treatments, termed “finlets” and “rails,” and relate those flow effects to the noise reduction. This was done using far-field microphones, a single hot-wire probe, and surface …