Abstract
Cycle-resolved measurements of H2O temperatures and number densities taken within the detonation channel of a hydrogen—air rotating detonation engine (RDE) at a 100 kHz repetition rate using laser absorption spectroscopy are presented. The laser source used is an MEMS-tunable Vertical-Cavity Surface Emitting laser which scans from 1330 to 1360 nm. Optical access into and out of the RDE is achieved using a dual-core fiber optic. Light is pitched into the RDE through a sapphire window via a single-mode core, retroreflected off the mirror-polished inner radius of the RDE annulus, and collected with the multi-mode fiber core. The resulting absorption spectra are used to determine gas temperatures as a function of time. These measurements allow characterization of the transient-temperature response of the RDE.
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References
K. Kailasanath, AIAA J 38, 1698 (2000)
D.A. Schwer, K. Kailasanath, AIAA Pap 581, 2011 (2011)
F. K. Lu, E. M. Braun, L. Massa, and D. R. Wilson, in 47th AIAA/ASME/SAE/ASEE Jt. Propuls. Conf. Exhib. (2011).
S. Sanders, D. Mattison, L. Ma, J. Jeffries, R. Hanson, Opt. Express 10, 505 (2002)
S.T. Sanders, J.A. Baldwin, T.P. Jenkins, D.S. Baer, R.K. Hanson, Proc. Combust. Inst. 28, 587 (2000)
D.W. Mattison, C.M. Brophy, S.T. Sanders, L. Ma, K.M. Hinckley, J.B. Jeffries, R.K. Hanson, J. Propuls. Power 19, 568 (2003).
A.W. Caswell, S. Roy, X. An, S.T. Sanders, F.R. Schauer, J.R. Gord, Appl. Opt. 52, 2893 (2013).
C. McGahan, B. Tom, A. Caswell, J. Gord, F. Schauer, and J. Hoke, in 52nd AIAA Aerosp. Sci. Meet. Natl. Harb. MD, AIAA-2014-0391 (2014).
C.S. Goldenstein, C.A. Almodóvar, J.B. Jeffries, R.K. Hanson, C.M. Brophy, Meas. Sci. Technol. 25, 105104 (2014)
M.S. Wu, E.C. Vail, G.S. Li, W. Yuen, C.J. Chang-Hasnain, Electron. Lett. 31, 1671 (1995).
M.S. Wu, E.C. Vail, G.S. Li, W. Yuen, C.J. Chang-Hasnain, Photonics Technol. Lett. IEEE 8, 98 (1996).
B.A. Stein, V. Jayaraman, J.Y. Jiang, A. Cable, S.T. Sanders, Appl. Phys. B 108, 721 (2012).
V. Jayaraman, B. Potsaid, J. Jiang, G.D. Cole, M.E. Robertson, C.B. Burgner, D.D. John, I. Grulkowski, W. Choi, T.H. Tsai, and others, in SPIE Microtechnologies (2013), p. 87630H–87630 H.
T. Kraetschmer, D. Dagel, S.T. Sanders, Opt. Lett. 33, 738 (2008)
D.S. Baer, M.E. Newfield, N. Gopaul, R.K. Hanson, Opt. Lett. 19, 1900 (1994)
L.A. Kranendonk, X. An, A.W. Caswell, R.E. Herold, S.T. Sanders, R. Huber, J.G. Fujimoto, Y. Okura, Y. Urata, Opt. Express 15, 15115 (2007)
J. C. Shank, P.I. King, J. Karnesky, F. Schauer, J.L. Hoke, in 50th AIAA Aerosp. Sci. Meet. Incl. New Horizons Forum Aerosp. Expo. AIAA Pap. (2012).
A. Naples, J. Hoke, J. Karnesky, and F. Schauer, in 51st AIAA Aerosp. Sci. Meet. Incl. New Horizons Forum Aerosp. Expo. AIAA Pap. (2013).
J.M. Whitney, K. Takami, S.T. Sanders, Y. Okura, Sens. J. IEEE 11, 3295 (2011)
L.A. Kranendonk, A.W. Caswell, S.T. Sanders, Appl. Opt. 46, 4117 (2007).
L.S. Rothman, I.E. Gordon, Y. Babikov, A. Barbe, D. Chris Benner, P.F. Bernath, M. Birk, L. Bizzocchi, V. Boudon, L.R. Brown, J. Quant. Spectrosc. Radiat. Transf. 130, 4 (2013).
G. Schulze, A. Jirasek, M.M.L. Yu, A. Lim, R.F.B. Turner, M.W. Blades, Appl. Spectrosc. 59, 545 (2005).
J.J. Olivero, R.L. Longbothum, J. Quant. Spectrosc. Radiat. Transf. 17, 233 (1977).
L.S. Rothman, I.E. Gordon, R.J. Barber, H. Dothe, R.R. Gamache, A. Goldman, V.I. Perevalov, S. A. Tashkun, J. Tennyson, J. Quant. Spectrosc. Radiat. Transf. 111, 2139 (2010).
M.S. Wooldridge, P.V Torek, M.T. Donovan, D.L. Hall, T.A. Miller, T.R. Palmer, C.R. Schrock, Combust. Flame 131, 98 (2002).
B. J. McBride, S. Gordon, NASA Ref. Publ. 1311, 84 (1996).
B.A. Rankin, D.R. Richardson, A.W. Caswell, A. Naples, J.L. Hoke, F.R. Schauer, in 53rd AIAA Aerosp. Sci. Meet. Kissimmee, FL (2015).
B.A. Rankin, M.L. Fotia, D.E. Paxson, J.L. Hoke, F.R. Schauer, in 53rd AIAA Aerosp. Sci. Meet. Kissimmee, FL (2015).
D.E. Paxson, in 52nd AIAA Aerosp. Sci. Meet. AIAA Pap. (2014).
Acknowledgements
Funding for this research was provided by the Air Force Research Laboratory (AFRL) under contract Nos. FA8650-10-C-2112 and FA8650-15-D-2580. The authors would like to thank Andrus Ionio of the Air Force Institute of Technology and Brian Sell and John Hoke of Innovative Scientific Solutions Inc. for setting up and operating the rotating detonation engine. Approved for public release: distribution unlimited (88ABW-2015-5934).
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Rein, K.D., Roy, S., Sanders, S.T. et al. Measurements of gas temperatures at 100 kHz within the annulus of a rotating detonation engine. Appl. Phys. B 123, 88 (2017). https://doi.org/10.1007/s00340-017-6647-5
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DOI: https://doi.org/10.1007/s00340-017-6647-5