タービン翼の冷却孔における粒子堆積現象の数値予測(乱流の予測とモデリング(3),一般講演)

概要

論文の詳細を見る
Particle deposition is a phenomenon that particles melting in a combustor adhere on a turbine blade surface and end walls. However, the mechanism of deposition is not clarified completely. As an experimental study is difficult to be carried out, a numeral research is expected. In the present study, numerical analyses of deposition phenomena on a turbine cascade are performed. The blade of the turbine cascade has two different types of cooling holes. The flow fields and the particle trajectories are numerically simulated. The computational domains consist of the passage between the blades and the inside of the cooling holes. The particle trajectories are simulated with a Lagrangian approach. The flow field is assumed to be three-dimensional, compressible and turbulent. Visualizing the numerical results, the characteristics of particle deposition on the turbine blade are investigated.
日本流体力学会の論文
2008-09-04