Non-dimensional wavenumber in full-spectrum k-distribution computations with or without a reference state

Maurente, André Jesus Soares; Bruno, Alexandre Barbosa; França, Francis Henrique Ramos; Howell, John Reid

Non-dimensional wavenumber in full-spectrum k-distribution computations with or without a reference state

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dc.contributor.author	Maurente, André Jesus Soares
dc.contributor.author	Bruno, Alexandre Barbosa
dc.contributor.author	França, Francis Henrique Ramos
dc.contributor.author	Howell, John Reid
dc.date.accessioned	2021-03-11T21:09:55Z
dc.date.available	2021-03-11T21:09:55Z
dc.date.issued	2017-07
dc.description.resumo	In the full spectrum k-distribution method, the k-distributions are Planck function weighted. These k-distributions depend on temperature, which varies with location in nonisothermal media. Consequently, in order to apply the method to nonuniform media, k-distributions evaluated at different local temperatures are correlated by a k-distribution evaluated at an arbitrarily chosen reference blackbody temperature. On the other hand, in the original band method, the k-distributions are directly related to spectral locations. Such k-distributions can replace Planck function weighted k-distributions computed at a reference temperature. This approach was employed by Maurente et al. [1] in order to deal with gas mixtures in non-equilibrium media. In this paper the formulation is presented for the equilibrium case. The proposed formulation simplifies the application of the FSK method to nonuniform media, and brings new directions to k-distribution issues. It can be employed with a reference state, but not a reference temperature, with reference state and temperature, as in the traditional FSK, and without any reference state, being in this case the continuous limit of the recently developed Rank Correlated SLW [2]. Results were obtained for test cases considering one-dimensional, nonuniform media, constituted by CO2 and inert gases, and compared to line-by-line solutions	pt_BR
dc.identifier.citation	MAURENTE, André; BRUNO, Alexandre B.; FRANÇA, Francis H.R.; HOWELL, John R.. Non-dimensional wavenumber in full-spectrum k-distribution computations with or without a reference state. Journal Of Quantitative Spectroscopy And Radiative Transfer, [S.L.], v. 196, p. 222-229, jul. 2017. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022407316308044. Acesso em: 22 out. 2020. http://dx.doi.org/10.1016/j.jqsrt.2017.04.017.	pt_BR
dc.identifier.doi	10.1016/j.jqsrt.2017.04.017
dc.identifier.issn	0022-4073
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/31816
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/br/	*
dc.subject	Full-spectrum k-distribution	pt_BR
dc.subject	Spectral modeling of molecular gases	pt_BR
dc.subject	Reference temperature	pt_BR
dc.subject	Nonuniform media	pt_BR
dc.subject	Nonuniform media	pt_BR
dc.subject	Reference thermodynamic state	pt_BR
dc.title	Non-dimensional wavenumber in full-spectrum k-distribution computations with or without a reference state	pt_BR
dc.type	article	pt_BR