Laser Doppler anemometry measurements in an engine.


A simple and effective technique is reported which allows measurement of the flow field in the cylinder of a motored internal combustion engine with good temporal and spatial resolution. The experiment, a realfringe laser Doppler anemometer, uses photon counting digital autocorrelation for data capture. The experimental autocorrelation functions have been processed using curve-fitting to a Gaussian velocity profile and by direct Fourier transformation without prior assumption of the form. The ability of such a technique to tolerate poor SNRs makes it a likely choice for measurement in firing engines.

DOI: 10.1364/AO.18.001539

Cite this paper

@article{Cole1979LaserDA, title={Laser Doppler anemometry measurements in an engine.}, author={J B Cole and M D Swords}, journal={Applied optics}, year={1979}, volume={18 10}, pages={1539-45} }