MHz laser absorption spectroscopy via diplexed RF modulation for pressure, temperature, and species in rotating detonation rocket flows AP Nair, DD Lee, DI Pineda, J Kriesel, WA Hargus Jr, JW Bennewitz, ... Applied Physics B 126 (8), 138, 2020 | 94 | 2020 |
Methane-oxygen rotating detonation exhaust thermodynamics with variable mixing, equivalence ratio, and mass flux AP Nair, DD Lee, DI Pineda, J Kriesel, WA Hargus Jr, JW Bennewitz, ... Aerospace Science and Technology 113, 106683, 2021 | 38 | 2021 |
Line mixing and broadening of carbon dioxide by argon in the v3 bandhead near 4.2 µm at high temperatures and high pressures DD Lee, FA Bendana, AP Nair, DI Pineda, RM Spearrin Journal of Quantitative Spectroscopy and Radiative Transfer 253, 107135, 2020 | 26 | 2020 |
Extended tuning of distributed-feedback lasers in a bias-tee circuit via waveform optimization for MHz-rate absorption spectroscopy AP Nair, NQ Minesi, C Jelloian, NM Kuenning, RM Spearrin Measurement Science and Technology 33 (10), 105104, 2022 | 23 | 2022 |
Multi-line Boltzmann regression for near-electronvolt temperature and CO sensing via MHz-rate infrared laser absorption spectroscopy NQ Minesi, MO Richmond, CC Jelloian, NM Kuenning, AP Nair, ... Applied Physics B 128 (12), 214, 2022 | 14 | 2022 |
High-diodicity impinging injector design for rocket propulsion enabled by additive manufacturing AR Keller, J Otomize, AP Nair, NQ Minesi, RM Spearrin AIAA SciTech 2022 Forum, 1265, 2022 | 14 | 2022 |
Exploiting line-mixing effects for laser absorption spectroscopy at extreme combustion pressures DD Lee, FA Bendana, AP Nair, SA Danczyk, WA Hargus Jr, RM Spearrin Proceedings of the Combustion Institute 38 (1), 1685-1693, 2021 | 14 | 2021 |
Temperature-dependent line mixing in the R-branch of the v3 band of methane J Li, AP Nair, KK Schwarm, DI Pineda, RM Spearrin Journal of Quantitative Spectroscopy and Radiative Transfer 255, 107271, 2020 | 13 | 2020 |
MHz mid-infrared laser absorption sensor for carbon monoxide and temperature behind detonation waves AP Nair, C Jelloian, DS Morrow, FA Bendana, DI Pineda, RM Spearrin AIAA Scitech 2020 Forum, 0733, 2020 | 11 | 2020 |
Hypergolic Continuous Detonation with Space-Storable Propellants and Additively Manufactured Injector Design AP Nair, AR Keller, DS Morrow, AB Lima, R Mitchell Spearrin, DI Pineda Journal of Spacecraft and Rockets 59 (4), 1332-1341, 2022 | 10 | 2022 |
Minimizing hydraulic losses in additively manufactured swirl coaxial injectors D Morrow, A Nair, RM Spearrin AIAA Propulsion and Energy 2019 Forum, 4310, 2019 | 8 | 2019 |
Optical pressure sensing at MHz rates via collisional line broadening of carbon monoxide: uncertainty quantification in reacting flows AP Nair, NQ Minesi, NM Kuenning, AR Keller, RM Spearrin Applied Physics B 129 (4), 51, 2023 | 7 | 2023 |
MHz mid-infrared laser absorption of CO and CO2 for pressure, temperature, and species in rotating detonation rocket flows AP Nair, D Lee, D Pineda, RM Spearrin, J Krisel, WA Hargus, ... AIAA Propulsion and Energy 2020 Forum, 3867, 2020 | 7 | 2020 |
RF-waveform optimization for MHz-rate DFB laser absorption spectroscopy in dynamic combustion environments AP Nair, NQ Minesi, C Jelloian, N Kuenning, RM Spearrin AIAA Scitech 2022 Forum, 2373, 2022 | 5 | 2022 |
Deflagration-to-detonation transition in an annular combustor with hypergolic propellants AP Nair, AR Keller, A Lima, RM Spearrin AIAA SCITECH 2022 Forum, 0090, 2022 | 5 | 2022 |
Laser absorption of carbon dioxide at the vibrational bandhead near 4.2 μm in high-pressure rocket combustion environments DD Lee, FA Bendana, AP Nair, RM Spearrin, SA Danczyk, WA Hargus AIAA Scitech 2020 Forum, 0298, 2020 | 5 | 2020 |
Excited oxygen kinetics at electronvolt temperatures via 5-MHz RF-diplexed laser absorption spectroscopy NQ Minesi, AP Nair, MO Richmond, NM Kuenning, CC Jelloian, ... Applied optics 62 (3), 782-791, 2023 | 4 | 2023 |
Detonation cell size of liquid hypergolic propellants: Estimation from a non-premixed combustor AP Nair, AR Keller, NQ Minesi, DI Pineda, RM Spearrin Proceedings of the Combustion Institute 39 (3), 2757-2765, 2023 | 4 | 2023 |
Three-dimensional real-time mapping of CO and CO2 concentrations in active forest burns with a UAV spectrometer K Schwarm, AP Nair, C Wei, RM Spearrin, E Ozen, E Gonzalez, J Kriesel AIAA SCITECH 2022 Forum, 2291, 2022 | 4 | 2022 |
Rotating detonation of hypergolic space-storable rocket propellants with additively-manufactured injector design AP Nair, D Morrow, AR Keller, A Lima, DI Pineda, RM Spearrin AIAA Propulsion and Energy 2021 Forum, 3648, 2021 | 4 | 2021 |