Research Summary
Dr. O'Connor focuses on issues of reacting flows for energy and propulsion applications. High-speed laser diagnostics and other state-of-the-art experimental techniques are used in research areas such as combustion, alternative fuels, hydrodynamic instability, and thermoacoustics.
In the News
Research Keywords
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Projects
Recent Publications
Data-driven Detection and Early Prediction of Thermoacoustic Instability in a Multi-nozzle Combustor
Bhattacharya, C., O’Connor, J. & Ray, A., 2022, In: Combustion science and technology. 194, 7, p. 1481-1512 32 p.Research output: Contribution to journal › Article › peer-review
Linear control of thermoacoustic oscillations with flame dynamics modeled by a level-set method
Chen, X., Hemchandra, S., Fathy, H. & O'Connor, J., Mar 2022, In: Combustion and Flame. 237, 111686.Research output: Contribution to journal › Article › peer-review
Optimizing Thermoacoustic Characterization Experiments for Identifiability Improves Both Parameter Estimation Accuracy and Closed-Loop Controller Robustness Guarantees
Chen, X., O’Connor, J. & Fathy, H., 2022, In: Combustion science and technology. 194, 11, p. 2186-2211 26 p.Research output: Contribution to journal › Article › peer-review
Relative Effects of Velocity- And Mixture-Coupling in a Thermoacoustically Unstable, Partially Premixed Flame
Karmarkar, A., Boxx, I. & O'Connor, J., Jan 1 2022, In: Journal of Engineering for Gas Turbines and Power. 144, 1, p. 1ENG 011003.Research output: Contribution to journal › Article › peer-review
Describing the Mechanism of Instability Suppression Using a Central Pilot Flame With Coupled Experiments and Simulations
Li, J., Kwon, H., Seksinsky, D., Doleiden, D., O’Connor, J., Xuan, Y., Akiki, M. & Blust, J., Jul 2022, In: Journal of Engineering for Gas Turbines and Power. 144, 1, 011015.Research output: Contribution to journal › Article › peer-review
Heat Release Rate Estimation Using Multiple Non-Minimum Phase Sensor Measurements in a One-dimensional Combustor
Chen, X., O’Connor, J. & Fathy, H., Nov 1 2021, In: IFAC-PapersOnLine. 54, 20, p. 723-728 6 p.Research output: Contribution to journal › Conference article › peer-review
The effect of the degree of premixedness on self-excited combustion instability
Howie, A., Doleiden, D., Peluso, S. & O'Connor, J., Jul 2021, In: Journal of Engineering for Gas Turbines and Power. 143, 7, 071024.Research output: Contribution to journal › Article › peer-review
Impact of turbulence on the coherent flame dynamics in a bluff-body stabilized flame
Karmarkar, A., Tyagi, A., Hemchandra, S. & O'Connor, J., Jan 2021, In: Proceedings of the Combustion Institute. 38, 2, p. 3067-3075 9 p.Research output: Contribution to journal › Article › peer-review
Effect of hydrogen on steady-state and transient combustion instability characteristics
Strollo, J., Peluso, S. & O'Connor, J., Jul 2021, In: Journal of Engineering for Gas Turbines and Power. 143, 7, 071023.Research output: Contribution to journal › Article › peer-review
Impact of sensor placement on mode observability and LQG control of a thermoacoustic system
Chen, X., Fathy, H. K. & O'Connor, J., 2020, In: IFAC-PapersOnLine. 53, p. 4214-4221 8 p.Research output: Contribution to journal › Conference article › peer-review
Energy Use for Electricity Generation Requires an Assessment More Directly Relevant to Climate Change
Logan, B. E., Rossi, R., Baek, G., Shi, L., Oconnor, J. & Peng, W., Nov 13 2020, In: ACS Energy Letters. 5, 11, p. 3514-3517 4 p.Research output: Contribution to journal › Article › peer-review
Pocket formation and behavior in turbulent premixed flames
Tyagi, A., Boxx, I., Peluso, S. & O'Connor, J., Jan 2020, In: Combustion and Flame. 211, p. 312-324 13 p.Research output: Contribution to journal › Article › peer-review
Towards a method of estimating out-of-plane effects on measurements of turbulent flame dynamics
Tyagi, A. & O'Connor, J., Jun 2020, In: Combustion and Flame. 216, p. 206-222 17 p.Research output: Contribution to journal › Article › peer-review
Cluster-based reduced-order modeling to capture intermittent dynamics of interacting wakes
Dare, T. P., Berger, Z. P., Meehan, M. & O’Connor, J., 2019, In: AIAA journal. 57, 7, p. 2819-2827 9 p.Research output: Contribution to journal › Article › peer-review
Flame edge dynamics and interaction in a multinozzle can combustor with fuel staging
Doleiden, D., Culler, W., Tyagi, A., Peluso, S. & O'Connor, J., Oct 2019, In: Journal of Engineering for Gas Turbines and Power. 141, 10, 101009.Research output: Contribution to journal › Article › peer-review