为探究涡轮轮缘密封的精细化设计, 在径向轮缘密封结构的基础上引入一种高径位供气孔结构并
将高位孔作为主要的封严气路, 采用经实验验证的非定常雷诺平均(URANS) 数值方法 …

Rim seal structures and sealing flows are essential in aero engines for preventing hot gas
ingestion from mainstream to turbine disk cavities. A novel design method of rim sealing flow …

In the high-temperature mainstream of gas turbines, there is a rim clearance between the
rotor and the stator. A rim seal is to prevent the intrusion of high-temperature gas by spraying …

Unsteady flow structures unrelated to rotating frequency in the turbine wheel space cavity
has been observed and reported in a number of recent rim sealing investigations. These …

Unsteady flow structures have been observed and reported in a number of recent rim-
sealing investigations. These unsteady flow structures will influence the cavity pressure …

Under the increasing turbine temperature of gas turbine, the thermal bearing capacity of
rotor and stator of turbine is increasingly limited, which poses a more severe challenge to …

A conventional axial turbine drived by a pulse detonation combustor heavily challenges the
turbine cooling and hot gas sealing. In order to fully understand the physical behavior of …

为探讨轮缘密封气流对高压涡轮静叶通道内流动特性的影响, 采用SST 湍流模型求解三维非定常
雷诺方程, 分析无封严腔, 无封严气流以及4 种封严流量下涡轮静叶通道内压力波动和气流变化 …

为了研究斜向角度对轮缘密封性能影响, 对3 个带有不同斜向角度的涡轮轮缘密封装置进行数值
模拟. 研究表明: 不同斜向角度的盘腔装置内燃气入侵主要发生在靠近转子一侧; …

A conventional axial turbine drived by a pulse detonation combustor heavily challenges the
turbine cooling and hot gas sealing. In order to fully understand the physical behavior of …