| name |
email |
phone |
|
| Christopher Michael Brophy |
cmbrophy@nps.edu |
831.656.2340 |
The research area to be explored involves the computational and experimental characterization of the transient gas dynamics affecting the fuel injection process withing Rotating Detonation Engines (RDEs). Due to the transient pressures and temperatures across the propagating detonation wave, the fuel and air injection recovery dynamics across the injector are often out of phase and present challenges for how to achieve adequate and acceptable mixing through the refresh and detonation process to prevent unburned fuel from leaving the system. Inadequate mixing has resulted in below-theoretical performance values and significant research needs to be dedicated on how to appropriately leverage and accomodate the conditions near the injector plate for these devices through unique passive design approaches.
It is expected that a combination of computational modeling of the unsteady injector flow field, experimental performance testing, and the application of optical diagnostic tools will improve the understanding of what is required to achieve this and increase the confidence of modeling and prediction tools which can then serve to aid in unique future injector designs.
Selected Supporting References
Cassidy, S., Peng, W., Strand, C., Brophy, C. Dausen, D., Codoni, J., Hanson, R., “ Time-Resolved, Single-Ended Laser Absorption Thermometry and H2O, CO2, and CO Speciation in a H2/C2H4-Fueled Rotating Detonation Engine,” Proceedings of the Combustion Institute, Vol. 38, Issue 1, 2021.
Pryor, J., Weightman, J., Sandberg, R., Bohon, M., Edgington-Mitchell, D., “Shock Propagation Through a Square Injector: Investigation into Rotating-Detonation Engine Injector Dynamics,” AIAA Journal, Volume 63, Issue 3, https://doi.org/10.2514/1.J064217
Feleo, A., Icon, O., and Mirko Gamba, “On Time-Averaged Measurements in Periodic Flowfields for Rotating Detonation Combustors,” AIAA Journal, Volume 62, Issue 11, https://doi.org/10.2514/1.J063728
citizenship
Open to U.S. citizens, permanent residents and non-U.S. citizens
level
Open to Postdoctoral and Senior applicants
Additional Benefits
relocation
Awardees who reside more than 50 miles from their host laboratory and remain on tenure for at least six months are eligible for paid relocation to within the vicinity of their host laboratory.
health insurance
A group health insurance program is available to awardees and their qualifying dependents in the United States.