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Affiliation of Author(s):能源与动力学院

Journal:JOURNAL OF CENTRAL SOUTH UNIVERSITY

Key Words:gas-solid flow particle deposition film-cooled wall converging slot film cooling hole numerical simulation

Abstract:Numerical research on the dilute particles movement and deposition characteristics in the vicinity of converging slot-hole(console) was carried out, and the effect of hole shape on the particle deposition characteristics was investigated. The EI-Batsh deposition model was used to predict the particle deposition characteristics. The results show that the console hole has an obvious advantage in reducing particle deposition in comparison with cylindrical hole, especially under higher blowing ratio. The coolant jet from console holes can cover the wall well. Furthermore, the rotation direction of vortices near console hole is contrary to that near cylindrical hole. For console holes, particle deposition mainly takes place in the upstream area of the holes.

ISSN No.:2095-2899

Translation or Not:no

Date of Publication:2017-12-01

Co-author:Zhou Jun-hui

Correspondence Author:zjz