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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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