Assessment of a Novel Flow Visualization Technique Using Photodissociation Spectroscopy
Applied Spectroscopy, Vol. 63, Issue 2, pp. 199-206
» View Full Text: Acrobat PDF (402 KB)
Citation
Yan Zhao, Chenning Tong, and Lin Ma, "Assessment of a Novel Flow Visualization Technique Using Photodissociation Spectroscopy," Appl. Spectrosc. 63, 199-206 (2009)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-63-2-199
Email
BibSonomy
Connotea
Cite U Like
del.icio.us
MendeleyAbstract
The study of complicated flows continuously calls for new nonintrusive flow diagnostics. A novel flow visualization technique based on photodissociation spectroscopy (PDS) is described, demonstrated, and assessed in this paper. This technique is centered around the creative use of photodissociation (PD). A PD precursor is seeded in the flow of interest, either passive or reactive. A laser pulse is then generated to completely and rapidly photodissociate both the precursor and the products formed from the precursor (if it reacts) into photofragments. A target photofragment is then imaged to obtain multidimensional information about the flow. An analytical methodology was developed to assess the feasibility of the PDS-based technique. This analytical method was applied to the case where molecular iodine was used as an example PD precursor, and the results were validated by experimental data. Both the analytical and experimental findings provided a promising outlook for this new technique as a practical flow visualization technique. With a properly chosen PD precursor, the PDS-based technique provides an attractive alternative for imaging several critical flow properties, including the mixture fraction and temperature field. This technique shares some key advantages with established techniques, e.g., a high spatial and temporal resolution comparable to the planar laser-induced fluorescence (PLIF) technique. Meanwhile, this technique offers several unique advantages to overcome the limitations of existing techniques, including enhancing the signal level and simplifying the interpretation of the signal.
» View Full Text: Acrobat PDF (402 KB)
References
Please [login to View References]
Cited By
OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.
OSA is a member of 
- Jan 14 2010 : OSA wins SPARC Innovator award for Optics Express. Read the press release.
- Jan 14 2010 : The Journal of the Optical Society of Korea is now available in the Optics InfoBase!
- Jan 08 2010 : Optics InfoBase now supports export to Mendeley. Learn more about Mendeley for online citation management and sharing.
- Journal of the Optical Society of Korea Added to OSA’s Optics InfoBase
Feb 1, 2010 - The Optical Society (OSA) is pleased to announce that Optics... more - OSA to Launch New Journal: Biomedical Optics Express
Jan 20, 2010 - The Optical Society (OSA) today announced it is launching a new... more - Invisibility Visualized
Nov 12, 2009 - Scientists and curiosity seekers who want to know what a partially or... more
