Raman mixture composition and flow velocity imaging with high repetition rates.
作者： Andreas Braeuer , Sascha Ronald Engel , Stefan Dowy , Sebastian Luther , Jürgen Goldlücke
DOI: 10.1364/OE.18.024579
关键词:
摘要: A novel and completely tracer free strategy to image composition velocity fields during the mixing process of two liquids is introduced. The achieved temporal resolution, spatial resolution sampling rate 30 ns, 54 x µm2 10 kHz, respectively, are sufficient resolve Kolmogorov time length scales as well transient phenomena many technical processes. During injection liquid water into ethanol, was quantitatively observed by means high repetition Raman imaging using a laser cluster for excitation with 8 successive light sheet pulses. One speed camera used detect CH-vibration band signal while second one OH-vibration ethanol. From ratio both, mixture field computed. dense flow determined processing images variational optical method.
osapublishing.org
harvard.edu参考文章(20)
Jochen Scholz, Tim Wiersbinski, Volker Beushausen, Planar Fuel-Air-Ratio-LIF with Gasoline for Dynamic Mixture-Formation Investigations SAE Technical Paper Series. ,(2007) , 10.4271/2007-01-0645
Joachim Weickert, Christoph Schnörr, A Theoretical Framework for Convex Regularizers in PDE-Based Computation of Image Motion International Journal of Computer Vision. ,vol. 45, pp. 245- 264 ,(2001) , 10.1023/A:1013614317973
Berthold K.P. Horn, Brian G. Schunck, Determining optical flow Artificial Intelligence. ,vol. 17, pp. 185- 203 ,(1981) , 10.1016/0004-3702(81)90024-2
Yusuke Oshima, Chie Furihata, Hidetoshi Sato, Light Sheet Direct Raman Imaging Technique for Observation of Mixing of Solvents Applied Spectroscopy. ,vol. 63, pp. 1115- 1120 ,(2009) , 10.1366/000370209789553264
Dimitrios C. Kyritsis, Philip G. Felton, Frediano V. Bracco, Instantaneous, two-dimensional, spontaneous Raman measurements of hydrogen number density in a laminar jet using an intra-cavity configuration International Journal of Alternative Propulsion. ,vol. 1, pp. 174- ,(2007) , 10.1504/IJAP.2007.013021
Andreas Braeuer, Sascha Ronald Engel, Robert Fabian Hankel, Alfred Leipertz, Gas mixing analysis by simultaneous Raman imaging and particle image velocimetry Optics Letters. ,vol. 34, pp. 3122- 3124 ,(2009) , 10.1364/OL.34.003122
Sebastian Pfadler, Micha Löffler, Friedrich Dinkelacker, Alfred Leipertz, None, Measurement of the conditioned turbulence and temperature field of a premixed Bunsen burner by planar laser Rayleigh scattering and stereo particle image velocimetry Experiments in Fluids. ,vol. 39, pp. 375- 384 ,(2005) , 10.1007/S00348-005-0980-X
Christof Schulz, Volker Sick, Tracer-LIF diagnostics: quantitative measurement of fuel concentration, temperature and fuel/air ratio in practical combustion systems Progress in Energy and Combustion Science. ,vol. 31, pp. 75- 121 ,(2005) , 10.1016/J.PECS.2004.08.002
Sascha Ronald Engel, Peter Koch, Andreas Braeuer, Alfred Leipertz, Simultaneous laser-induced fluorescence and Raman imaging inside a hydrogen engine Applied Optics. ,vol. 48, pp. 6643- 6650 ,(2009) , 10.1364/AO.48.006643
C.F. Kaminski, J. Hult, M. Aldén, High repetition rate planar laser induced fluorescence of OH in a turbulent non-premixed flame Applied Physics B. ,vol. 68, pp. 757- 760 ,(1999) , 10.1007/S003400050700