On the Selection of Integration Intervals for the Calculation of Mean Absorption Coefficients
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F15%3APU115878" target="_blank" >RIV/00216305:26220/15:PU115878 - isvavai.cz</a>
Result on the web
<a href="http://link.springer.com/article/10.1007/s11090-015-9648-3" target="_blank" >http://link.springer.com/article/10.1007/s11090-015-9648-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11090-015-9648-3" target="_blank" >10.1007/s11090-015-9648-3</a>
Alternative languages
Result language
angličtina
Original language name
On the Selection of Integration Intervals for the Calculation of Mean Absorption Coefficients
Original language description
In radiation modeling of thermal plasmas non-grey models are applied where the radiative transport is described in several frequency bands (spectral intervals). Hereby mean absorption coefficients have to be calculated by a spectral integration procedure, providing a constant mean absorption coefficient for each band. Depending on the number of bands, one or more integration boundaries have to be selected in order to do the integration. In this paper we evaluate the influence of the selection of these integration boundaries on the mean absorption coefficient and the also radiation transfer by applying the mean absorption coefficients in a radiation transport model. Using a simplified two-band model we demonstrate that the selection of the integration boundary has a large impact on the total model accuracy. We show that in some cases selecting a band boundary right at the frequency where the continuum absorption shows a jump can introduce a significant error into the radiation calculation. The process of the integration interval selection thus demands a global optimization procedure to properly evaluate the boundaries of each frequency band.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plasma Chemistry and Plasma Processing
ISSN
0272-4324
e-ISSN
1572-8986
Volume of the periodical
35
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1097-1110
UT code for WoS article
000362966500010
EID of the result in the Scopus database
2-s2.0-84944356405