The Swirl Flames Data Repository
Simultaneous OH-PLIF (Planer Laser Induced Flourescence) and CH2O-PLIF
Joint OH-PLIF and CH2O-PLIF simultaneous measurements are available upon request. These measurements were collected at 10 Hz at University College London. Laser beams at 283 nm and 355 nm were used to excite the OH and CH2O radicals respectively, as indicated in the following schematic.
In post-processing, OH and CH2O images were spatially aligned with one another based on a matching reference points recorded during data collection. The images were then processed using a background subtraction and laser sheet profile correction to remove inhomogeneities. A median filter was applied before each set of images were overlapped in order to calculate the CH2OxOH product. 400 images were recorded for each flow condition.