Laser sheet dropsizing based on two-dimensional Raman and Mie scattering.
The imaging and quantification of droplet sizes in sprays is a challenging task for optical scientists and engineers. Laser sheet dropsizing (LSDS) combines the two-dimensional information of two different optical processes, one that is proportional to the droplet volume and one that depends on the droplet surface, e.g., Mie scattering. Besides Mie scattering, here we use two-dimensional Raman scattering as the volume-dependent measurement technique. Two different calibration strategies are presented and discussed. Two-dimensional droplet size distributions in a spray have been validated in comparison with the results of point-resolved phase Doppler anemometry (PDA) measurements.
Malarski
Anna
A
Lehrstuhl für Technische Thermodynamik, Friedrich-Alexander Universität Erlangen-Nürnberg, Am Weichselgarten 8, 91058 Erlangen, Germany.
Schürer
Benedikt
B
Schmitz
Ingo
I
Zigan
Lars
L
Flügel
Alexandre
A
Leipertz
Alfred
A