FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1984369239> ?p ?o ?g. }

• W1984369239 endingPage "185" @default.
• W1984369239 startingPage "169" @default.
• W1984369239 abstract "Effects of surface roughness on the optical scattering properties of ice crystals are investigated using a random wave superposition model of roughness that is a simplification of models used in studies of scattering by surface water waves. Unlike previous work with models of rough surfaces applicable only in limited size ranges, such as surface perturbation methods in the small particle regime or the tilted-facet (TF) method in the large particle regime, ours uses a single roughness model to cover a range in sizes extending from the Rayleigh to the geometric optics regimes. The basic crystal shape we examine is the hexagonal column but our roughening model can be used for a wide variety of particle geometries. To compute scattering properties over the range of sizes we use the pseudo-spectral time domain method (PSTD) for small to moderate sized particles and the improved geometric optics method (IGOM) for large ones. Use of the PSTD with our roughness model is straightforward. By discretizing the roughened surface with triangular sub-elements, we adapt the IGOM to give full consideration of shadow effects, multiple reflections/refractions at the surface, and possible reentrance of the scattered beams. We measure the degree of roughness of a surface by the variance ( σ 2 ) of surface slopes occurring on the surfaces. For moderately roughened surfaces ( σ 2 ≤ 0.1 ) in the large particle regime, the scattering properties given by the TF and IGOM agree well, but differences in results obtained with the two methods become noticeable as the surface becomes increasingly roughened. Having a definite, albeit idealized, roughness model we are able to use the combination of the PSTD and IGOM to examine how a fixed degree of surface roughness affects the scattering properties of a particle as the size parameter of the particle changes. We find that for moderately rough surfaces in our model, as particle size parameter increases beyond about 20 the influence of surface roughness on the scattering properties of randomly oriented hexagonal particles starts to become evident. Somewhat surprisingly, in calculations using the IGOM certain qualitatively clear differences in patterns of roughness that have the same σ 2 result in negligible difference in scattering effects. The phase matrix elements given by the IGOM for smooth and roughened hexagonal columns with the “large” size parameter 100 agree very well with the PSTD results, and the integral scattering properties given by the PSTD for small-to-moderate sized particles are shown to merge smoothly with those given by the IGOM for moderate-to-large sizes. • We compute scattering properties of roughened particles over the entire size range. • Our roughness model is based on a random surface wave representation. • We use a combination of IGOM and PSTD methods to cover the range. • We evaluate strengths and weaknesses of the tilted facet ray tracing method." @default.
• W1984369239 created "2016-06-24" @default.
• W1984369239 creator A5028296024 @default.
• W1984369239 creator A5037851586 @default.
• W1984369239 creator A5039935543 @default.
• W1984369239 date "2013-11-01" @default.
• W1984369239 modified "2023-09-29" @default.
• W1984369239 title "The effects of surface roughness on the scattering properties of hexagonal columns with sizes from the Rayleigh to the geometric optics regimes" @default.
• W1984369239 cites W182899756 @default.
• W1984369239 cites W1966757129 @default.
• W1984369239 cites W1971472937 @default.
• W1984369239 cites W1976527384 @default.
• W1984369239 cites W1979659699 @default.
• W1984369239 cites W1989907325 @default.
• W1984369239 cites W1990646419 @default.
• W1984369239 cites W2000359418 @default.
• W1984369239 cites W2009013358 @default.
• W1984369239 cites W2011994939 @default.
• W1984369239 cites W2019104938 @default.
• W1984369239 cites W2030220433 @default.
• W1984369239 cites W2032551803 @default.
• W1984369239 cites W2035088048 @default.
• W1984369239 cites W2037153462 @default.
• W1984369239 cites W2038690032 @default.
• W1984369239 cites W2039544509 @default.
• W1984369239 cites W2041726549 @default.
• W1984369239 cites W2044940833 @default.
• W1984369239 cites W2049797088 @default.
• W1984369239 cites W2050493992 @default.
• W1984369239 cites W2053916985 @default.
• W1984369239 cites W2054489697 @default.
• W1984369239 cites W2064352790 @default.
• W1984369239 cites W2064943738 @default.
• W1984369239 cites W2067047560 @default.
• W1984369239 cites W2067205523 @default.
• W1984369239 cites W2069238441 @default.
• W1984369239 cites W2070804679 @default.
• W1984369239 cites W2071581420 @default.
• W1984369239 cites W2074578396 @default.
• W1984369239 cites W2075828063 @default.
• W1984369239 cites W2078586903 @default.
• W1984369239 cites W2080818371 @default.
• W1984369239 cites W2083865370 @default.
• W1984369239 cites W2090345251 @default.
• W1984369239 cites W2091884066 @default.
• W1984369239 cites W2092912014 @default.
• W1984369239 cites W2094566660 @default.
• W1984369239 cites W2096114680 @default.
• W1984369239 cites W2107359910 @default.
• W1984369239 cites W2110325329 @default.
• W1984369239 cites W2111990569 @default.
• W1984369239 cites W2116372571 @default.
• W1984369239 cites W2117343527 @default.
• W1984369239 cites W2133992889 @default.
• W1984369239 cites W2136292844 @default.
• W1984369239 cites W2137567951 @default.
• W1984369239 cites W2137934303 @default.
• W1984369239 cites W2141057063 @default.
• W1984369239 cites W2142063750 @default.
• W1984369239 cites W2148160712 @default.
• W1984369239 cites W2153026037 @default.
• W1984369239 cites W2154393710 @default.
• W1984369239 cites W2157254274 @default.
• W1984369239 cites W2162246342 @default.
• W1984369239 cites W2164813394 @default.
• W1984369239 cites W2165207609 @default.
• W1984369239 cites W2165456017 @default.
• W1984369239 cites W2168642907 @default.
• W1984369239 cites W2177359352 @default.
• W1984369239 cites W2504549650 @default.
• W1984369239 doi "https://doi.org/10.1016/j.jqsrt.2013.06.011" @default.
• W1984369239 hasPublicationYear "2013" @default.
• W1984369239 type Work @default.
• W1984369239 sameAs 1984369239 @default.
• W1984369239 citedByCount "54" @default.
• W1984369239 countsByYear W19843692392014 @default.
• W1984369239 countsByYear W19843692392015 @default.
• W1984369239 countsByYear W19843692392016 @default.
• W1984369239 countsByYear W19843692392017 @default.
• W1984369239 countsByYear W19843692392018 @default.
• W1984369239 countsByYear W19843692392019 @default.
• W1984369239 countsByYear W19843692392020 @default.
• W1984369239 countsByYear W19843692392021 @default.
• W1984369239 countsByYear W19843692392022 @default.
• W1984369239 countsByYear W19843692392023 @default.
• W1984369239 crossrefType "journal-article" @default.
• W1984369239 hasAuthorship W1984369239A5028296024 @default.
• W1984369239 hasAuthorship W1984369239A5037851586 @default.
• W1984369239 hasAuthorship W1984369239A5039935543 @default.
• W1984369239 hasConcept C107365816 @default.
• W1984369239 hasConcept C110277352 @default.
• W1984369239 hasConcept C120456961 @default.
• W1984369239 hasConcept C120665830 @default.
• W1984369239 hasConcept C121332964 @default.
• W1984369239 hasConcept C159985019 @default.
• W1984369239 hasConcept C191486275 @default.
• W1984369239 hasConcept C192562407 @default.
• W1984369239 hasConcept C2524010 @default.

• next