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 “"liquid rocket engines"”.
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Dynamic models for liquid rocket engines with health monitoring application
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
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Analysis of a heavy lift launch vehicle design using small liquid rocket engines
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1988.
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Development, testing, and validation of a heat transfer model for bi-propellant liquid rocket engines
… heat transfer characteristics in a bi-propellant liquid rocket engine is a time and resource intensive process. The highly unpredictable and turbulent nature of the combustion requires complex modeling to predict the temperatures and fluid properties. These properties are required to evaluate …
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Early Plume Development and NOx Chemistry in LOx/H₂ and LOx/CH₄ Liquid Rocket Engines
Projected rocket launch demand in the next 10 years predicts an order-of-magnitude increase in CO₂-equivalent gasses. Despite this expected increase in launch frequency, the on-Earth environmental impacts of off-Earth missions is still understudied, partially due to the lack of combustion and …
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Thermoacoustic Effects of a Variable Equivalence Ratio in a Single Element Methane Combustor
… in limiting the progress and innovations of liquid rocket engines and power plants. Under certain operating conditions, unsteady heat release and acoustic wave interactions can couple and lead to instabilities, such as self-sustaining pressure oscillations, that can lead to reduced combustor …
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Numerical investigation of the combustion of liquid oxygen droplets in an environment of hydrogen under microgravity conditions
… more effective and better cryogenic powered liquid rocket engines, it is vital to undertake further studies to better understand the behavior of the LOX/LH2 system. This work studies the configuration of a single liquid oxygen droplet surrounded by gaseous hydrogen diluted with helium. A …
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Effects of Tip Clearance and Surface Roughness on Small-Scale Turbopump Impeller Performance
… turbopump impellers typically used in liquid rocket engines of small launch vehicles suffer from reduced performance due to manufacturing challenges and nonuniform geometric scaling. This thesis aims to characterize the impact of impeller blade tip clearance and surface roughness on the …
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Preliminary design of a 1 kN liquid propellant rocket engine testing platform
This work presents a preliminary design of a liquid rocket engine test platform to support research into liquid propulsion systems and rocket engine components, including injectors, ignition systems, combustion chambers and engine cooling systems. The liquid propellants, specifically liquid oxygen …