Date of Award
12-2019
Access Type
Thesis - Open Access
Degree Name
Master of Science in Aerospace Engineering
Department
Aerospace Engineering
Committee Chair
Dr. William Engblom
First Committee Member
Dr. Lakshmanan Narayanaswami
Second Committee Member
Dr. Eric Perrell
Abstract
Ramjet flowpath miniaturization is a potentially useful technology for integration into munitions to increase range, accuracy, and lethality. The emphasis of this effort is to numerically characterize the performance of a miniature hydrogen-fueled and ethylene-fueled ramjet flowpath during Mach 3 and Mach 3.5 sea-level flight. The effect of geometric scale on ramjet performance is evaluated using high-fidelity RANS CFD models. Sensitivity to nonequilibrium laminar and turbulence-limited chemistry, and transitional turbulence treatments are evaluated. The physical sources of small scale performance limitations are identified for both fuel types. Finally, flowpath integration for small-scale applications is briefly addressed.
Scholarly Commons Citation
Vedam, Arjun Jaishankar, "Numerical Investigation of Scaling Effects of a Ramjet-Powered Projectile" (2019). Doctoral Dissertations and Master's Theses. 493.
https://commons.erau.edu/edt/493
