Abstract
Hydroxyl tagging velocimetry (HTV) is reviewed in this paper. HTV is a velocity method that determines the molecular velocity of humid air and combustion flows without additives. In the HTV method, multiple beams of ArF excimer laser (193 nm) light pass through a H2O-laden gas flow and dissociate H2O into H + OH to form a tagging grid of hydroxyl (OH) molecules. The OH grid is tracked over a finite-time interval by laser-induced fluorescence to measure the velocity by time-of-flight. Micro-lens optics have been used to form grids as large as 11x11 to yield ~120 velocity vectors of the two-dimensional flow over a fixed time delay. Instantaneous, single-shot measurements of two-dimensional flow patterns as well as mean and rms profiles are reported in supersonic non-reacting flows and gas turbine exhausts.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
