Abstract
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 real-fringe 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.
© 1979 Optical Society of America
Full Article |
PDF Article
More Like This
References
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Figures (8)
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Equations (5)
You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription