Detail An Improved Numerical Study of The Wall Effect on Hot-Wire Measurements   Oleh:  Durst, Franz ; Schafer, Michael ; Breuer, Michael ; Shi, Jun-Mei Jenis: Article from Bulletin/Magazine Dalam koleksi: Journal of Heat Transfer vol. 125 no. 4 (Aug. 2003), page 595-603. Topik: wall rotation; numerical study; wall effect; hot - wire measurements Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.7 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Numerical investigations of the heat transfer from hot wires in near - wall measurements were carried out. Special attention was paid to the effect of the wall thickness, the flow conditions below the wall and the shear velocity connected to different wall materials. Compared with previous studies, an improved physical model taking into account the flow region below the wall in the computational domain was applied. The results obtained agree well with experimental data in the literature for walls consisting of both highly and poorly conducting materials. The investigation showed that the shear velocity U has a significant influence on hot - wire measurements in the vicinity of a wall. Nevertheless, discernible effects of the wall thickness and the flow condition below the wall were found only in the case of a poorly conducting wall. In addition, the results also suggest a weak effect of the overheat ratio for a wire with an infinitely large aspect ratio. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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