TY - JOUR
T1 - Numerical study of fluid flow and heat transfer in a flat-plate channel with longitudinal vortex generators by applying field synergy principle analysis
AU - Tian, Li Ting
AU - He, Ya Ling
AU - Lei, Yong Gang
AU - Tao, Wen Quan
PY - 2009/2
Y1 - 2009/2
N2 - Three dimensional numerical simulations are performed on laminar heat transfer and fluid flow characteristics of a flat-plate channel with longitudinal vortex generators (LVGs). The effects of two different shaped LVGs, rectangular winglet pair (RWP) and delta winglet pair (DWP) with two different configurations, common-flow-down (CFD) and common-flow-up (CFU), are studied. The numerical results indicate that the application of LVGs effectively enhances heat transfer of the channel. According to the performance evaluation parameter, (Nu/Nu0)/(f/f0), the channel with DWP has better overall performance than RWP; the CFD and CFU configurations of DWP have almost the same overall performance; the CFD configuration has a better overall performance than the CFU configuration for RWP. The basic mechanism of heat transfer enhancement by LVGs can be well described by the field synergy principle.
AB - Three dimensional numerical simulations are performed on laminar heat transfer and fluid flow characteristics of a flat-plate channel with longitudinal vortex generators (LVGs). The effects of two different shaped LVGs, rectangular winglet pair (RWP) and delta winglet pair (DWP) with two different configurations, common-flow-down (CFD) and common-flow-up (CFU), are studied. The numerical results indicate that the application of LVGs effectively enhances heat transfer of the channel. According to the performance evaluation parameter, (Nu/Nu0)/(f/f0), the channel with DWP has better overall performance than RWP; the CFD and CFU configurations of DWP have almost the same overall performance; the CFD configuration has a better overall performance than the CFU configuration for RWP. The basic mechanism of heat transfer enhancement by LVGs can be well described by the field synergy principle.
KW - Field synergy principle
KW - Heat transfer enhancement
KW - Longitudinal vortex generator
KW - Pressure loss penalty
UR - https://www.scopus.com/pages/publications/59649092878
U2 - 10.1016/j.icheatmasstransfer.2008.10.018
DO - 10.1016/j.icheatmasstransfer.2008.10.018
M3 - 文章
AN - SCOPUS:59649092878
SN - 0735-1933
VL - 36
SP - 111
EP - 120
JO - International Communications in Heat and Mass Transfer
JF - International Communications in Heat and Mass Transfer
IS - 2
ER -