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 10 of 10 for “"intake flow"”.
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Intake flow analysis of a pulsed detonation engine
… is converted and modified to explore unsteady flow within the intake system of a pulse detonation engine (PDE). Using a quasi-one-dimensional approach the program provides insight into the unsteady nature of localized equivalence ratios to include their effects on PDE performance. The original …
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Intake flow fields for a zooplankton pump sampling system
The flow fields entering intake forms oriented into a steady flume flow has been observed and quantified. This data is applied to a model of zooplankton sampler performance, to predict the fraction of the sampled fluid from which no animals will escape under conditions similar to those of the …
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An experimental rig to investigate crosswind effects on intake flow behaviour
… slimmer and sharper, lower drag and weight 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 …
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LDA and CTA in-cylinder measurements of intake-generated turbulence for steady flow around a centrally located valve
… the axial and swirl velocities for steady flow in a cylinder past an intake valve, in order to study the effects of swirl and valve lift on turbulence generation. A simple geometry was used for an initial look at the flow past a valve.;A cylinder with a centrally located valve was used as …
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Predicting Motion of Engine-Ingested Particles Using Deep Neural Networks
… expense to accurately simulate the fluid flow and particle motion inside the separator. It has been well-documented that particle ingestion yields many detrimental impacts for gas turbine engines. The consequences of ice particle ingestion can range from surface-wear abrasion to engine …
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Simulation of a Singular Cough Event in an Enclosed Breakroom
… This model is a detailed simulation of the inlet flow through a perforated plate covering the vent, using a k-omega SST model. This model serves as the inlet boundary conditions for the primary breakroom model. The breakroom's continuous phase is simulated using k-epsilon realizable, which …
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Air/fuel mixing enhancement and emission reduction through intake port design and various fuel emulsions for diesel combustion
… both sides of the mixture. For air, different intake port designs were considered to generate a strong in-cylinder tangential velocity, known as swirl flow, to promote air/fuel mixing. The mean and turbulent characteristics of the swirl flow were explored under various valve lifts using …
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Effects of Interfaces and Interactions between Multiphase Flow and Solid on Engineering Structures
… and submarine designs, multiphase liquid flow analyses, aerodynamics, vehicle dynamics and in the fields of aeronautic, civil and mechanical engineering. The research in this dissertation focuses on numerical investigations of the effects of liquid-solid interactions on structures found in …
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Spray visualization and characterization of a multi variable circular orifice (MVCO) injector coupled with a swirl adapter for diesel reformer applications
… to the fuel spray by the adapter. Such swirl flow can only further improve the mixing process for the MVCO as the turbulent kinetic energy delivered by the intake flow will induce the more violent breakup leading to finer droplets. Therefore a highly atomized spray with high level of mixing …
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Performance and emission characteristics of an automotive diesel engine using biodiesel fuel with the influence of air intake variables
… cylinder. The pressure drop across the air intake manifold is known to have a significant effect on the indicated power of the internal combustion engine. Most car manufacturers locate the air grill at the front of a vehicle to enhance the volumetric efficiency. However due to wading …