Non-intrusive techniques for measurement of scalar and hydrodynamic structures of a flow field have obvious advantages over the intrusive ones, as they do not modify the flow field itself.\u00a0 Using laser-based techniques to study the structure of a\u00a0 flow field are especially helpful because of the associated high temporal and spatial resolutions.<\/span><\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0 In the present study, we plan to utilize Raman spectroscopy to measure the temperature distributions in reacting and non-reacting flows. Particular interests include (1) the determination of the temperature based on the vibrational and rotational Raman spectra and the comparison of these vibrational- and rotational- Raman determined temperatures; and (2) the theoretical calculations of the corresponding Raman spectra.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":" Oleg Kogan with Dr. Chih-Jen Sung, (Mech.\/Aero. Engr.)\u00a0Quantitative Temperature Measurement in Reacting and Non-Reacting Flows by Vibrational and Rotational Raman Spectroscopy<\/p>\n Non-intrusive techniques for measurement of scalar and hydrodynamic structures of a flow field have obvious advantages over the intrusive ones, as they do not modify the flow field itself.\u00a0 Using laser-based techniques to study the structure of a\u00a0 flow field are especially helpful because of the associated high temporal and spatial resolutions.<\/p>\n \u00a0\u00a0\u00a0\u00a0\u00a0 In the present study, we plan to utilize Raman spectroscopy to measure the temperature distributions in reacting and non-reacting flows. Particular interests include (1) the determination of the temperature based on the vibrational and rotational Raman spectra and the comparison of these vibrational- and rotational- Raman determined temperatures;<\/p>\n