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 20 of 186 for “"Turbulent boundary layer"”.
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Three-dimensional turbulent boundary layer
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1957.
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Study of the turbulent boundary layer
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautical Engineering, 1936.
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Turbulent Boundary Layer Flow Over a Bump
Turbulent boundary layers (TBLs) are critical to the performance and efficiency of many engineering systems, especially in aerospace and turbomachinery applications. While two-dimensional (2D) TBLs under zero-pressure-gradient (ZPG) conditions are well understood, real-world boundary layers often …
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Turbulent boundary layer separation and its driving factors
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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The evolution of vortices in a turbulent boundary layer
… many investigations have yielded descriptions of turbulent velocity fields and hypotheses for the physical basis of turbulence; however, the fundamental physics of turbulence remain unknown. In this investigation, the evolution of a perturbed vortex tube near a boundary is examined in order to …
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Response of flexible panels to turbulent boundary layer excitation.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1969.
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The Three-Dimensional Turbulent Boundary Layer on a Rotating Disk
<p>Three-dimensional turbulent boundary layers (3DTBL) are seen quite commonly in nature as well as in the engineering applications. Despite this, very few high Reynolds number studies have been carried out on these boundary layers, particularly focusing on eddy structure, eddy scales and their …
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Passive Turbulent Boundary Layer Control through 3D-Printed Dolphin Skin
… dolphin (Tursiops truncates) skin to mitigate boundary layer separation as a form of passive flow control, energizing the flow near the wall. A water tunnel generates a tripped turbulent boundary layer across a vertical test plate, and a rotating cylinder induces flow separation by creating an …
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Direct numerical simulation of microjets for turbulent boundary layer control
… used to simulate an array of MEMS slot jets in a turbulent boundary layer for the purposes of flow control. Initial studies were used to first ascertain the correctness of the model and give insight into the performance characteristics of the devices. To this end, a flow and geometric parameter …
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Investigation of turbulent boundary layer structure using particle image velocimetry
… wall-normal plane of a zero-pressure-gradient turbulent boundary layer. In total, 340 PIV realizations of the boundary layer were obtained at Reynolds numbers based on momentum thickness of Ree = 930, 2370 and 6845. Each realization contains approximately 10000 two-component velocity vectors …
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Inner-outer interactions in a rough-wall turbulent boundary layer
… of inner-outer interactions in rough-wall turbulent boundary layers. These interactions were recently established over smooth-wall turbulent boundary layers as modulating interactions, where the outer layer large scales amplitude and frequency modulate the near-wall small scales. Given that …
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System identification and active control of a turbulent boundary layer
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1997.
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Turbulent boundary layer flow over two-dimensional bottom roughness elements
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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Roughness Effects on Super Structures in Turbulent Boundary Layer Flows
… wall roughness on large-scale structures within turbulent boundary layers, using wall-parallel stereoscopic Particle Image Velocimetry (PIV) at a Reynolds number of 1.3 × 106m−1. The data was collected at a distance of = 2.8 from the wall under adverse = 0.98, small = −0.04, and favorable = −0.60 …
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Turbulent Boundary Layer over a Piezoelectrically Excited Traveling Wave Surface
… utilized spanwise traveling waves to alter the turbulent boundary layer with the aim of reducing skin friction drag. Spanwise traveling waves are a promising active drag reduction technique; however, the wave generation methods used in previous studies are bulky and could not be practically …
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