Laser-Induced Fluorescence in Gas Phase Flows
Three snap-shots showing how an acetone seeded gas jet mixes with the ambient air. The measurement is done by means of laser-induced fluorescence using a UV laser, and the data is calibrated by Dantec Dynamics' LIF software package.
Planar laser-induced fluorescence (PLIF) is an optical diagnostic technique widely used in fluid applications.
PLIF is a well-established tool for flow visualization as well as for quantitative whole-field measurements of concentration in gaseous flows. Applications can be found in fluid dynamics research, combustion diagnostics and more.
Mixing studies in gas phase flows by tracer-LIF
By adding a fluorescent tracer species (e.g. acetone) to a non-fluorescent fuel or gas, visualization of the gas phase mixing as well as quantitative concentration measurements can be made by means of LIF. One wide spread application is fuel visualization in development of combustion engines, where LIF allows for diagnostics of the pre-combustion as well as the combustion process to be made.
Dantec Dynamics’ powerful yet easy-to-use system dedicated for gas phase tracer-LIF enables investigations of properties such as:
- Fuel distribution
- Ignition phenomena
- Fuel injection behavior
- Gas phase mixing studies
Features:
| Non-intrusive technology |
| Quantitative, precise and accurate measurements of concentration in gas flows |
| Multi-parameter measurements by combination with e.g. PIV |
| Modular system allowing easy future upgrades |
Software
Smart software for imaging solutions
Learn more about LIF for gas mixing diagnostics
Measurement Principles
Planar laser-induced fluorescence (planar-LIF) is an optical measuring technique used to measure instant whole-field concentration or temperature maps in liquid flows. Read More
Application Examples
Read more on the general scientific aspects of the planar-LIF technique in the publication by Papadopoulos G. and Guillard F. (2003) Read More