An Analytical Model for Decaying Swirl Flow and Heat Transfer Inside A Tube  

Oleh:

Wu, Hui-Ying ; Cheng, Hui-Er ; Shuai, Ren-Jun ; Zhou, Qiang-Tai

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 122 no. 1 (Feb. 2000), page 204-207.
Topik: flow; decaying; swirl flow; heat transfer; tube

Ketersediaan

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

Lihat Detail Induk

Isi artikel

Decaying swirl flow can enhance the heat transfer inside a tube. For the decaying swirl flow of which maximum tangential velocity is located in the immediate vicinity of the wall, an analytical model based on the fluid theorem about the moment of momentum is proposed for the local maximum tangential velocity, local friction factor, and local Nusselt number in this paper. The analytical solutions compare favorably with the experimental data. Influences of the Reynolds number, wall roughness and initial tangential - to - axial velocity ratio on the decaying characteristics of the friction factor and Nusselt number have been analyzed. The analytical results show that the swirl flow decays more rapidly at the initial segment ; for same conditions, the friction factor decays more severely than the Nusselt number ; relative to the values of the nonswirl flow, the friction factor increases more intensely than the Nusselt number.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali