Abo Bibliothek: Guest
Home Archive Thermal Letter Beauftragte Zukünftige Meetings Assembly for International Heat Transfer Conferences
International Heat Transfer Conference 12

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

The numerical investigation of the effect of spanwise pressure gradient on heat transfer and a streamwise vortex embedded in a turbulent boundary layer

InSub Lee
Department of Mechanical Engineering, Chung-Ang University 221 HeukSuk-Dong, DongJak-Gu, Seoul, 156-756, Korea

Hong Sun Ryou
School of Mechanical Engineering, Chung-Ang University, Chung-Ang University 221, HeukSuk Dong, DongJak Ku, Seoul, 156-756, Korea

Hei Cheon Yang
Faculty of Mechanical and Automotive Engineering, Yosu National University, 195 Kuk-Dong, Yosu, Chonnam, 150-749, Korea

Sang Kyoo Park
Faculty of Mechanical and Automotive Engineering, Yosu National University, 195 Kuk-Dong, Yosu, Chonnam, 150-749, Korea

DOI: 10.1615/IHTC12.1200
6 pages

Abstrakt

The main objective is to investigate the effects of spanwise pressure gradient on heat transfer and a streamwise vortex embedded in a turbulent boundary layer. The numerical simulations is carried out for the turbulent boundary layer including streamwise vortex, which is rotating in clockwise and counter-clockwise direction, by using the Reynolds stress closure model with Launder, Reece and Rodi (LRR) for the pressure-strain correlation terms. The governing equation is discretized by the finite volume method and SIMPLE algorithm is used to calculate the pressure field. It is found that the streamwise vortex affected by the spanwise pressure gradient is shifted to right-hand side. The streamwise vortex more rapidly dies out due to spanwise pressure gradient. In addition, it is shown that the turbulent normal stresses are enhanced at the vicinity of the wall due to the spanwise pressure gradient. The stanton number and the skin friction coefficient are proportional and of the same order of magnitude.

Kauf $25.00 Check subscription Ethik und Fehlverhalten bei Publikationen Meinem Bibliothekar empfehlen Lesezeichen auf dieser Seite setzen