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 8 of 8 for “"One Dimensional Modeling"”.
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Quasi-One-Dimensional Modeling of an Adiabatic-Compression Preheated Ludwieg Tube
… Further characterization is performed with quasi-one-dimensional Euler computations. The MOC approach shows the optimal operating condition constrains the compression ratio and Ludwieg tube to nozzle exit diameter ratio, assuming proper simulation of flight conditions. The unsteady Euler …
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Two-Dimensional Modeling of AP/HTPB Utilizing a Vorticity Formulation and One-Dimensional Modeling of AP and ADN
… of the monopropellants AP and ADN, and a two-dimensional diffusion flame model has been developed to examine the flame structure above an AP/HTPB composite propellant. This work was part of an ongoing effort to develop theoretically based, <em>a priori</em> combustion models. The improved …
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One Dimensional Analysis Program for Scramjet and Ramjet Flowpaths
One-Dimensional modeling of dual mode scramjet and ramjet flowpaths is a useful tool for scramjet conceptual design and wind tunnel testing. In this thesis, modeling tools that enable detailed analysis of the flow physics within the combustor are developed as part of a new one-dimensional …
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Applying numerical sediment transport models to examine river restoration sustainablilty at the Rio Grande Nature Center, New Mexico
… without removing flood protection measures. One such feature is the Rio Grande Nature Center (RGNC) Habitat Restoration project. The project consists of removing non-native plants and constructing an ephemeral, high-flow, side channel connected to the Rio Grande in Albuquerque, New Mexico. …
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Optimizing the scavenging system for high efficiency and low emissions: a computational approach
… using Computational Fluid Dynamics, zero-dimensional and one-dimensional modeling, along with single step parametric variations. Visualization of the in-cylinder and port dynamics allowed the flow through the engine to be more completely understood and better controlled. Through a …
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Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River
… the Atchafalaya River, this study incorporates a one-dimensional backwater flow model based on conservation of fluid mass and momentum equations and utilizes the geological and engineering data of the Atchafalaya, Mississippi and Old River Systems compiled by the USACE from 1880-1950. Two models …
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Evaluation of Contaminant Containment at Regina Landfill
… barriers placed above or within the vadose zone to prevent contaminant migration into the groundwater system. Numerical estimates of design lives for assessment of barrier system performance are generally acceptable under numerous landfill regulations. Predictive models work under the general …
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Fabrication of Ultrathin Palladium Composite Membranes by a New Technique and Their Application in the Ethanol Steam Reforming for H₂ Production
… compounds deposition during the reaction. A one-dimensional modeling of the MR and the PBR was conducted using identical conditions and their performances were compared with the values obtained from the experimental study. The model was developed using a simplified power law and the predicted …