Effects of coolant mass flow rate ratio on heat transfer in a two-inlet rotating wedge-shaped channel

Yang, Li; Xu, Guoqiang; Deng, Hongwu; Qiu, Lu; Yu, Xiao

doi:10.1016/j.ijheatmasstransfer.2016.01.046

Cited by 16 publications

(1 citation statement)

References 27 publications

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“…Since the channel structure of wedge-shaped cross section and lateral fluid ejection has a shortcoming that there is low local heat transfer location at inner part of high-radius half channel, some optimization methods on this structure to improve heat transfer performance have been carried out. Li, et al (2016) and proposed a rotating wedge-shaped cooling channel with two inlets. Compared to conventional wedge-shaped cooling channel with single inlet, they designed an extra inlet around the low heat transfer location to enhance heat transfer of the channel.…”

Section: Effect Of the Cooling Channel Structurementioning

confidence: 99%

Research status and development trend of rotating internal cooling of a gas turbine blade

Guo¹,

Li²,

Ren³

2022

Proceedings of Global Power &Amp; Propulsion Society

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Blade internal cooling is crucial for gas turbine thermal efficiency improvement. As an essential component of gas turbine, the investigations on cooling performance of rotor blade is a must. In the paper, the research status of turbine rotor blade internal cooling is illustrated in term of the effect of Coriolis force, buoyancy and cooling channel structure on the cooling performance of rotation internal channel. The three factors have significant influence on the internal cooling performance. Moreover, the development trend of rotating internal cooling is introduced, and novel structure design concept of double wall inner cooling is introduced and simulated as well. The result indicates that the overall heat transfer of the change orientation cooling channel performs better compared to conventional serpentine U-shaped channel due to Coriolis effect. Therefore, that the novel structure cooling channel is promising in the future application.

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Section: Effect Of the Cooling Channel Structurementioning

confidence: 99%