Analysis of Radiative Heat Transfer in Complex Two-Dimensional Enclosures With Obstacles Using The Modified Discrete Ordinates Method  

Oleh:

Charette, A. ; El Kasmi, A. ; Sakami, M.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 123 no. 5 (Oct. 2001), page 892-900.
Topik: DESIGN; radiative heat transfer; two - dimensional; enclosures; discrete ordinates method

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

In this work, an extension of a modified discrete ordinates method recently proposed by other researchers is presented. It is intended to counter the ray effect inherent in this method. The media analyzed are absorbing, emitting and isotropically or anisotropically scattering and the enclosure geometry is arbitrary. Cases with obstructions are emphasized. The radiative intensity is broken into two parts: the wall-related intensity and the medium-related intensity. The former is treated separately by rigorous integration over the entire solid boundary. A new differencing scheme based on quadrangular grids is also proposed and used for the treatment of the medium - related intensity. Results confirm that the proposed method is a good general remedy for anomalies caused by the ray effect due to the geometry.

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