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 213 for “"Blowing."”.
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Blowing Warhol's cool: Decoding the sixties work
"This dissertation suggests a new understanding of the art of Andy Warhol by analyzing the personal iconography of his images. Warhol's ""hands-off"" painting technique, his apparently random retrieval of received images, as well as his cool public persona mask the works' highly autobiographical …
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Steady State Modeling and Dynamic Analysis of Film Blowing
… analysis, which has never been applied to film blowing, was used to explore the effect of system disturbances on the process. Results showed that perturbations related to heat transfer and inflation pressure were more significant than the effect of die swell. In addition, crystallinity is shown …
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Modification of Blade-Vortex Interactions Using Leading Edge Blowing
… the effectiveness of steady leading-edge blowing (LEB) flow control for modifying the vortex induced vibrations on an airfoil in the wake of a circular cylinder. The airfoil was allowed to oscillate perpendicular to the fluid flow direction in response to the impinging Von-Karman vortex …
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Blowing-up patterns in semilinear elliptic equations of critical type
Hay dos partes en mi tesis. La primera parte se dedica principalmente a la construcción de soluciones burbujeantes de algunos problemas elípticos con no linealidad exponencial en $\mathbb{R}^2$. En la segunda parte se considera la existencia de soluciones de punta para ecuaciones elípticas en …
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Stator loading measurements behind a fan with trailing edge blowing
The effects of trailing edge blowing on stator unsteady loading were investigated through a set of experiments on a trailing edge blowing fan. Flow field measurements and stator unsteady loading measurements were taken at five radial locations. Reductions in the relative wake harmonics were seen at …
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Turbofan rotor/stator interaction noise reduction through trailing edge blowing
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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Trailing-Edge Blowing of Model Fan Blades for Wake Management
… the wake management technique of trailing-edge blowing were tested in a linear cascade configuration. Measurements were made on two sets of blowing blades installed in the Virginia Tech low-speed linear cascade wind tunnel. The simple blowing blades were identical to the baseline GE Rotor B …
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Reduction of Unsteady Rotor-Stator Interaction Using Trailing Edge Blowing
… engine simulator. By using trailing edge blowing to minimize the shed wakes of the stators, the flow into the rotor was made more uniform. In these experiments a reduced number of stators (four) was used in a 1/14 scale model inlet which was coupled to a 4.1 in (10.4 cm) turbofan engine …
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Flow Control Over a Circular Arc Airfoil by Periodic Blowing
The flow over sharp-edged wings is almost always separated. The control of separated flows is possible and benefits can be achieved but only in a time average sense. A new design of an actuator was designed and tested which can achieve a wide range velocity of without frequency dependence, is free …
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Advanced Trailing Edge Blowing Concepts for Fan Noise Control: Experimental Validation
This thesis documents trailing edge blowing research performed to reduce rotor / stator interaction noise in turbofan engines. The existing technique of filling every velocity deficit requires a large amount of air and is therefore impractical. The purpose of this research is to investigate new …
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PP and Nanofibrillated-PET Composites from Melt Blowing: Fundamentals to Scale-Up
… polypropylene (PP) explored in this thesis.Melt blowing is a widely utilized technique for creating polymeric non-woven materials by drawing polymer above its melting temperature using high-speed, high-temperature air. This results in higher extensibility during drawing, thereby producing …
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Doppler global velocimetry measurements in a wing flow field with tip blowing
… a NACA 2412 airfoil model with and without tip blowing.;The jet data generally agreed well with previous measurements. The jet velocity error was generally within +/-2--4 m/s. The offset error of up to +/-10 m/s was attributed to difficulties in cell calibration. The velocity data obtained from …
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Blowing the Whistle: Investigating the Psychological Consequences of Referee Abuse in Sport
In today's sports landscape, there is a prominent emphasis on ensuring a safe environment for athletes yet the critical issue of safeguarding the well-being of sporting officials (i.e., referees) has been vastly overlooked. This oversight is evident not only at the professional level, but also in …
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Computational and Experimental Comparison of a Powered Lift, Upper Surface Blowing Configuration
… a relationship between lift coefficient, CL, vs blowing momentum coefficient, Cμ. CFD analysis tend to over-predict values of CL due to gridding issues and/or turbulence model selection. This thesis attempted to address both issues by performing Richardson’s Extrpolation method to determine an …
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Comparing extrinsic and intrinsic processes of whistle-blowing: a multi-method approach
… extrinsic and intrinsic processes of whistle-blowing. To be able to do this, I examined if observers of wrongdoing blew the whistle because they had strong, positive external outcome expectancies, i.e., they expected their potential act of whistle-blowing to result in occurrences of positive …
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Noise Reduction in an Axisymmetric Supersonic Aircraft Inlet using Trailing Edge Blowing
… aircraft engine inlet using Trailing Edge Blowing (TEB) to reduce the engine fan noise from a turbofan propulsion simulator (TPS). The TPS is 4.1 in. (10.4 cm) in diameter and is powered by compressed air. The supersonic inlet is connected to the TPS and is geometrically and acoustically …
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The influence of individual, team and contextual factors on external auditors' whistle-blowing intentions in Barbados. Towards the development of a conceptual model of external auditors' whistle-blowing intentions.
… of Arthur Andersen in the Enron debacle, whistle-blowing within audit firms has taken on greater importance. Given the profession's requirements to be confidential, independent and to act in the public's interest, there is a need for a model that addresses auditors' whistle-blowing intentions. …
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'Blowing in the Wind?': Environmental Liability of Corporations for Atmospheric Damage in Chile
Chilean Law 19,300/1994—the General Law of the Environment—provides a statutory mechanism for holding polluting corporations liable for the damage that they cause to the environment. It works as an adjudicative and adversarial framework for finding liability and ordering remediation measures to …
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