Numerical Study of Three-Dimensional Oscillatory Natural Convection Low Prandtl Number in Rectangular Enclosures  

Oleh:

Wakitani, Shunichi

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 123 no. 1 (Feb. 2001), page 77-83.
Topik: oscillatory motion; numerical study; three - dimensional oscillatory; natural convection; low prandtl number; rectangular enclosures

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Numerical investigations are presented for three - dimensional natural convection at low Prandtl numbers (Pr) from 0 to 0.027 in rectangular enclosures with differentially heated vertical walls. Computations are carried out for the enclosures with aspect ratios (length / height) 2 and 4, and width ratios (width / height) ranging from 0.5 to 4.2. Dependence of the onset of oscillation on the Prandtl number, the aspect ratio, and the width ratio is investigated. Furthermore, oscillatory, three -dimensional flow structure is clarified. The structure is characterized by some longitudinal vortices (rolls) as well as cellular pattern.

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