Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical transfer function of the supersonic mixing layer

Not Accessible

Your library or personal account may give you access

Abstract

The optical path difference (OPD) of the supersonic mixing layer with convective Mach number 0.5 is measured using the nanoparticle-based planar laser scattering technique, and its short-exposure optical transfer function (OTF) is computed with the proper orthogonal decomposition (POD). The OPD is analyzed from the viewpoint of structure function, and remarkable power law behavior is found. The power exponent is computed and analyzed. Taking the advantage of POD in capturing the energy of a signal, we present a model for the temporal evolution of OPD, which combines the deterministic and random factors together. With this model, the short-exposure OTF of the mixing layer is computed and analyzed. The amplitude modulation is evident at low frequencies, and it is almost negligible at high frequencies. The imaginary part of OTF for the mixing layer with developed vortex structures is of considerable amplitude, and the phase modulation becomes important for image degradation. We compare this phenomenon with the early result in aero-optics and explain it with the non-Gaussian statistics of OPD.

© 2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical path difference of the supersonic mixing layer

Qiong Gao, Zongfu Jiang, Shihe Yi, and Yuxin Zhao
Appl. Opt. 49(19) 3786-3792 (2010)

Hierarchical structure of the optical path length of the supersonic turbulent boundary layer

Qiong Gao, Shihe Yi, Zongfu Jiang, Lin He, and Yuxin Zhao
Opt. Express 20(15) 16494-16503 (2012)

Influence of jet components on the aero-optical effects of a 3D supersonic mixing layer

Boyang Xing, Bin Zhang, Guangming Guo, Dongdong Li, and Hong Liu
Appl. Opt. 60(27) 8231-8238 (2021)

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 (7)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (17)

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved