首页|Flow and heat transfer characteristics of Coriolis-utilization rotating rectangular smooth cooling U-channel
Flow and heat transfer characteristics of Coriolis-utilization rotating rectangular smooth cooling U-channel
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
Gas turbine is a crucial power equipment around the world. Its inlet temperature increases year by year, bringing great challenges to the temperature resistance of turbine blades. Thus, exploring high-efficiency cooling structure is a must. In this paper, flow and heat transfer characteristics of a rotating rectangular smooth internal U-channel with orientation angles of 90° called Coriolis-utilization rotating rectangular smooth cooling U-channel have been numerically investigated by comparing with non-rotation smooth U-channel and conventional rotating smooth U-channel with Reynolds-Averaging Navier–Stokes (RANS) method. The Reynolds number kept constant at 10000. The Rotation number was between 0 and 0.1. The numerical method has been validated by experiment results. The results demonstrate that the Coriolis-utilization rotating U-channel not only utilizes the Coriolis force merit on the leading and trailing walls to strengthen heat transfer, but also performs lower pressure loss than the conventional rotating U-channel. Therefore, the Coriolis-utilization rotating U-channel is a promising internal cooling structure of rotor blade for higher inlet-temperature turbine in the future.
NSTL
Elsevier
