Date of Award
2023
Document Type
Thesis
Degree Name
Master of Science in Mechanical Engineering (MSME)
Department
Mechanical and Aerospace Engineering
Committee Chair
Robert A. Frederick
Committee Member
David M. Lineberry
Committee Member
Jason T. Cassibry
Subject(s)
Rockets (Aeronautics)--Ramjet engines, Altitudes--Simulation methods
Abstract
A modular high altitude simulation apparatus is designed and incorporated into the UAH connected-pipe flow facility for solid fuel ramjet studies. A literature review is conducted on solid fuel ramjets, high altitude simulation approaches, and parameters of gas ejectors. Next, a system-wide design process is detailed with validating calculations as well as high-level CFD simulations. Finally, a compilation of relevant test data is provided along with relevant analysis. The eductor system achieved 11 psia at 0.054 lbm/s of heated air flow rate, well short of the desired 8 psia at 0.062 lbm/s flow rate. Ejector efficiency was between 43 and 55 percent of anticipated values. This was likely caused by inefficiencies from viscous and shear interactions of gas entrainment which occurred at high temperature air flow conditions. Recommendations for future work are to remove losses from the system and upgrade ejector flow capacity to account for air temperature-related effects.
Recommended Citation
Agnew, Joseph, "Design of a high altitude simulation apparatus for the UAH solid fuel ramjet" (2023). Theses. 521.
https://louis.uah.edu/uah-theses/521