Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.5

ISSN Imprimir: 1065-3090
ISSN On-line: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v17.i1.40
pages 57-67

THERMAL FLUID FLOW TRANSPORT PHENOMENON OVER TWIN DIAMOND-SHAPED CYLINDERS IN FREE STREAM

Taro Takagi
Department of Mechanical System Engineering, Kumamoto University, 2-39-1, Kurokami, Kumamoto, 860-8555, JAPAN
Yasushi Koito
Department of Advanced Mechanical Systems, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, Japan
Toshio Tomimura
Kumamoto University, 1-39-2 Kurokami, Tyuo-ku, Kumamoto 860-8555 Japan

RESUMO

The present study deals with unsteady laminar fluid flow transport phenomena around a pair of diamond-shaped cylinders in a free stream. Emphasis is placed on the effects of the Reynolds number, Re, and the ratio of the cylinder separation distance to the length of a diamond-shaped cylinder, s/d, on the flow patterns and thermal fields in side-by-side arrangements. The study discloses that (i) the generation of von Karman vortex streets behind the diamond-shaped cylinders is intensified with an increase in the Reynolds number, (ii) the flow pattern in the wake region of the diamond-shaped islands is affected by s/d, (iii) the corresponding flow map is obtained in the form of the Reynolds number versus s/d, (iv) the vortex shedding frequency depends slightly on the gap spacing, and (v) the vortex appears in the downstream direction and in contrast the corresponding thermal diffusion occurs in the vicinity of the diamond cylinders.


Articles with similar content:

VELOCITY AND THERMAL FLUID FLOW TRANSPORT PHENOMENON AROUND TWIN DIAMOND CYLINDERS IN A FREE STREAM
Journal of Flow Visualization and Image Processing, Vol.20, 2013, issue 1-2
Zijie Lin, Shuichi Torii
FLUID FLOW TRANSPORT PHENOMENON AROUND TWO DIAMOND-SHAPED CYLINDERS IN SIDE-BY-SIDE ARRANGEMENT
Journal of Flow Visualization and Image Processing, Vol.15, 2008, issue 2
Noritsugu Ueda
VORTEX INDUCED TRANSPORT PHENOMENA IN FLOWS PAST MICROPINS
International Heat Transfer Conference 16, Vol.24, 2018, issue
Neil Cagney, Manish K. Tiwari, Shigang Zhang, Stavroula Balabani
TOPOLOGY AND TRANSPORT CHARACTERISTICS IN A TURBULENT TWO-CYLINDER WAKE
TSFP DIGITAL LIBRARY ONLINE, Vol.2, 2001, issue
Yu Zhou, M.W. Yiu, H. J. Zhang
FLOW AROUND NONPARALLEL TANDEM CYLINDERS
TSFP DIGITAL LIBRARY ONLINE, Vol.10, 2017, issue
Md. Yamin Younis, Yu Zhou, Md. Mahbub Alam