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 13 of 13 for “"Shock Wave Boundary Layer Interaction"”.
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The Effects of Particles Momentum Transfer in Shock Wave/Boundary Layer Interaction
… into a supersonic flow containing an oblique shockwave reflection were performed in order to observe and understand the momentum transfer effects between solid and gas phases in shock-wave / boundary layer interaction. Particle size and mass loading were varied to study the problem. It was …
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Evaluation of a displacement-body model for hypersonic shock-wave/boundary-layer interaction
… thesis, a displacement-body model for strong-interaction shock-wave/boundary-layer interaction (SBLI) is presented and evaluated. The model considers 2-D flow over a flat plate with an adiabatic wall. The separation bubble is modeled as a displacement body with constant surface pressure, the …
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The Impact of Surface Roughness on Transonic Inlet Lip-Flows at Incidence
… a local supersonic region, terminated by a shock wave. This creates a shock wave-boundary-layer interaction, which could lead to detrimental consequences on the global flow-field. To meet future environmental regulations, new, larger, engines are being designed with a higher bypass ratio. …
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The effects of micro-vortex generators on normal shock wave/boundary layer interactions
Shock wave/boundary-layer interactions (SWBLIs) are complex flow phenomena that are important in the design and performance of internal supersonic and transonic flow fields such as engine inlets. This investigation was undertaken to study the effects of passive flow control devices on normal shock …
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Experimental and numerical study of hypersonic aeroelastic intakes
… each of which explored a unique structural boundary condition. The experiments were conducted at the TUSQ hypersonic facility in Queensland, Australia, at Mach 5.85 flow condition. The aeroelasticity effects were measured in terms of the dynamic aero-structural response of the intake, and …
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An experimental rig to investigate crosswind effects on intake flow behaviour
… intakes, which are at risk of experiencing boundary layer separation under aerodynamically difficult conditions. One particularly problematic condition is the crosswind experienced during runway operations, which can lead to downstream distortion of the flow at the fan plane. Due to the …
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Design and development of a rectangular supersonic wind tunnel facility for the study of shock/boundary layer interactions
… to evaluate simple, passive, and bleedless inlet shock wave/boundary layer interaction control options, called micro-vortex generators. A new supersonic wind tunnel was designed and built on the University of Illinois campus to enhance high-speed flow testing capabilities used for studying these …
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The relationship between surface geometry and transonic intake performance during off-design climb
… However, these designs often have a stronger shock on the windward front-lip of the intake during off-design climb, producing a severe shock wave--boundary-layer interaction (SBLI) that greatly increases the ingested incompressible boundary-layer displacement thickness, \(\delta_i^*\), and …
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Shock oscillation mechanisms of highly separated transitional shock-wave/boundary-layer interactions
… of the turbofan engine. Consequently, a laminar boundary layer persists on the suction side of the transonic fan during cruise. Additionally, the trend in compressor design is higher blade loading, leading to larger separations. These conditions combined induce a shock oscillation with …
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Multi-scale modeling of laser induced breakdown in non-equilibrium plasmas
… A non-equilibrium model for laser-plasma interaction has been developed and validated for the purpose of this study. The computational framework has been, then, used to investigate the plasma kernel dynamics under different ambient conditions (e.g., pressure), laser parameters (e.g., power …
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Sidewall effects in compression corner shock-wave/boundary-layer interactions
… inlets and research wind tunnels. When a shock wave boundary layer interaction (SBLI) occurs in a rectangular cross sectioned duct, the streamwise corner flows tend to separate, resulting in highly three-dimensional behaviour in the sidewall region. These corner separations have been seen …
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Interaction between a conical shock wave and a plane compressible turbulent boundary layer at Mach 2.05
U of I Only Restriction Lifted for Item 73181 on 2017-01-22T10:15:29Z.
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Numerical and experimental investigation of VG flow control for a low-boom inlet
The application of vortex generators (VGs) for shock/boundary layer interaction flow control in a novel external compression, axisymmetric, low-boom concept inlet was studied using numerical and experimental methods. The low-boom inlet design features a zero-angle cowl and relaxed isentropic …