<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Backlit droplet images are evaluated for droplet combustion experiments that have been performed on the International Space Station. The focus of the present analyses is on non-sooting or lightly-sooting droplets. The influences of diffraction, interference, and partial coherence on droplet images are considered via Fourier optics modeling. It is found that light diffraction at the droplet edge can contribute significantly to errors in droplet size measurements. Other error sources include background light variations and partial coherence effects. An image-processing algorithm is proposed to account for the effects of diffraction, partial coherence, and background light variations on measurements of droplet sizes.</p></abstract>

Backlit droplet images are evaluated for droplet combustion experiments that have been performed on the International Space Station. The focus of the present analyses is on non-sooting or lightly-sooting droplets. The influences of diffraction, interference, and partial coherence on droplet images are considered via Fourier optics modeling. It is found that light diffraction at the droplet edge can contribute significantly to errors in droplet size measurements. Other error sources include background light variations and partial coherence effects. An image-processing algorithm is proposed to account for the effects of diffraction, partial coherence, and background light variations on measurements of droplet sizes.

Interpretation of Backlit Droplet Images from ISS Droplet Combustion Experiments

Gravitational and Space Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Interpretation of Backlit Droplet Images from ISS Droplet Combustion Experiments"}

Backlit droplet images are evaluated for droplet combustion experiments that have been performed on the International Space Station. The focus of the present...

Geometrical Optics:	E₂ = E₁, I₂ = I₁
Completely Coherent:	E₂ = E₁ ⊗ h, I₂ = E₂E₂^*
Completely Incoherent:	I₂ = (hh^*) ⊗ I₁
Partially Coherent:	E₂ = (E₁T) ⊗ h, < I₂ > = < E₂E₂^* >

Interpretation of Backlit Droplet Images from ISS Droplet Combustion Experiments

Article Category: Research Article

Published Online: Jan 18, 2022

Page range: 82 - 93

DOI: https://doi.org/10.2478/gsr-2014-0007

© 2014 Fei Yu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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