DENG Ding-yuan, GAO Hang-shan, YU Kua-hai, et al. Numerical simulation on flow and heat transfer of elliptical pin-fins in cooling channel[J]. 2010, 25(7).
DENG Ding-yuan, GAO Hang-shan, YU Kua-hai, et al. Numerical simulation on flow and heat transfer of elliptical pin-fins in cooling channel[J]. 2010, 25(7).DOI:
Numerical simulation was conducted to investigate the flow and heat transfer performance of elliptical pin-fin arrays in turbine blade cooling channel.Then
the impacts of array spacing
angle of attack
ratio of long axis and short axis on flow and heat transfer in pin-fins channel were obtained.The result indicates that
when the angle of attack is 0°
the pressure loss coefficient and average Nusselt number of elliptical pin-fins channel is about 51.7% and 83.75%
respectively
of the same fin section-area and arrays circular pin-fins channel;when the ratio of long axis and short axis is 5/1.8
the pressure loss coefficient is only 28.1%~35.5% of circular pin-fins channel(ratio of long axis and short axis is 3/3)
and average Nusselt number is 71.1%~75.06% of circular pin-fins channel.