Browsing NTNU Open by Author "Sun, Junfeng"
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Analysis of Wear Performance of Two Finger Seal Structure
Lei, Junjie; Liu, Meihong; Hu, Xiangping; Sun, Junfeng; Kang, Yuchi (Journal article; Peer reviewed, 2021)To reveal the wear law of parabola-shaped and arc-shaped finger seals (FSs), the wear characteristics of parabola-shaped and arc-shaped FSs were studied in this paper. Firstly, a formula for calculating the contact stress ... -
Analysis of Wear Performance of Two Finger Seal Structure
Lei, Junjie; Liu, Meihong; Hu, Xiangping; Sun, Junfeng; Kang, Yuchi (Chapter, 2021)To reveal the wear law of parabola-shaped and arc-shaped finger seals (FSs), the wear characteristics of parabola-shaped and arc-shaped FSs were studied in this paper. Firstly, a formula for calculating the contact stress ... -
Coupled Fluid–Solid Numerical Simulation for Flow Field Characteristics and Supporting Performance of Flexible Support Cylindrical Gas Film Seal
Sun, Junfeng; Liu, Meihong; Xu, Zhen; Liao, Taohong; Hu, Xiangping; Li, Yuxian; Wang, Juan (Peer reviewed; Journal article, 2021)A new type of cylindrical gas film seal (CGFS) with a flexible support is proposed according to the working characteristics of the fluid dynamic seal in high-rotational-speed fluid machinery, such as aero-engines and ... -
Effect of T-groove Parameters on Steady-State Characteristics of Cylindrical Gas Seal
Sun, Junfeng; Liu, Meihong; Xu, Zhen; Liao, Taohong; Hu, Xiangping (Peer reviewed; Journal article, 2020)Gas film seal technology is becoming increasingly important as an advanced new rotary shaft seal technology in aviation engines and industrial gas turbines. In this paper the impacts of several parameters of T-groove ... -
Numerical Analysis of Flow across Brush Elements Based on a 2-D Staggered Tube Banks Model
Song, Xiaolei; Liu, Meihong; Hu, Xiangping; Wang, Xueliang; Liao, Taohong; Sun, Junfeng (Journal article; Peer reviewed, 2021)n order to improve efficiency in turbomachinery, brush seal replaces labyrinth seals widely in the secondary air system. A 2-d staggered tube bank model is adopted to simulate the gas states and the pressure character in ... -
Performance Analysis of Ball Mill Liner Based on DEM-FEM Coupling
Xu, Zhen; Sun, Junfeng; Liao, Taohong; Hu, Xiangping; Zhang, Xuedong (Peer reviewed; Journal article, 2020)In the paper, based on the finite element-discrete element method coupling and the coupled bionics theory, four lifting bar models with coupled bionic surface structures, such as smooth, transverse stripe, longitudinal ... -
Research on operating parameters of T-groove cylindrical gas film seal based on computational fluid dynamics
Sun, Junfeng; Liu, Meihong; Xu, Zhen; Liao, Taohong (Peer reviewed; Journal article, 2019)Cylindrical gas film sealing technology is a new type of dry gas sealing technology. Compared with the face gas film sealing technology, the cylindrical gas film seal presents a strong floating property, which can reduce ...