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.