Detail publikace

Objective function for numerical mean absorption bands optimization

KLOC, P. AUBRECHT, V. BARTLOVÁ, M.

Originální název

Objective function for numerical mean absorption bands optimization

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

Mean absorption coefficients (MACs) offer great potential for fast numerical calculation of radiation heat transfer. They are based on replacing complex absorption coefficient spectrum by a handful of frequency bands with a single, temperature dependent value assigned to each band. Accuracy of radiation transfer calculation thus depends on the accurate interpretation of the mean value inside each frequency band as well as on the proper band distribution. Yet finding optimal band distribution is not an easy task often requiring numerical optimization process. This contribution focuses on the parameters of such optimization process, namely selection of an objective function and its effect on the optimal band distribution. It demonstrates, that improper objective functions can produce physically unreasonable artifacts in the calculation of radiation heat transfer. Optimal formulation of the objective function is proposed in this contribution.

Klíčová slova

mean absorption coefficients; numerical optimization; radiation transfer

Autoři

KLOC, P.; AUBRECHT, V.; BARTLOVÁ, M.

Vydáno

4. 9. 2017

Nakladatel

Czech Technical University in Prague

Místo

Praha

ISBN

2336-2634

Kniha

Plasma Physics and technology

ISSN

2336-2626

Periodikum

Plasma Physics and Technology

Ročník

4

Číslo

3

Stát

Česká republika

Strany od

269

Strany do

272

Strany počet

4

URL

https://ojs.cvut.cz/ojs/index.php/PPT/article/view/6232

BibTex

@article{BUT141325,
  author="Petr {Kloc} and Vladimír {Aubrecht} and Milada {Bartlová}",
  title="Objective function for numerical mean absorption bands optimization",
  journal="Plasma Physics and Technology",
  year="2017",
  volume="4",
  number="3",
  pages="269--272",
  doi="10.14311/ppt.2017.3.269",
  issn="2336-2626",
  url="https://ojs.cvut.cz/ojs/index.php/PPT/article/view/6232"
}