Blar i NTNU Open på forfatter "Liu, Meihong"
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Analysis of Drag of Bristle Based on 2-D Staggered Tube Bank
Song, Xiaolei; Liu, Meihong; Hu, Xiangping; Kang, Yuchi; Zhang, Baodi (Peer reviewed; Journal article, 2020)In this paper, a 2-D staggered tube bank of bristle pack is established to examine the effect of flow on bristle pack, and Gambit is used to generate the mesh. The Resistance of the bristle in the transient condition is ... -
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 ... -
Numerical Evaluation of Rotordynamic Coefficients for Compliant Foil Gas Seal
Wang, Xueliang; Liu, Meihong; Kao-Walter, Sharon; Hu, Xiangping (Peer reviewed; Journal article, 2020)Compliant foil gas seal is one of the advanced cylindrical gas seal technologies and can be commonly used in the secondary flow system of an aero-engine. It can enhance the dynamic stability of the aero-engine by meeting ... -
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 ... -
Theoretical and numerical investigation into brush seal hysteresis without pressure differential
Kang, Yuchi; Liu, Meihong; Hu, Xiangping; Kao-Walter, Sharon; Zhang, Baodi (Peer reviewed; Journal article, 2019)Brush seal is a novel type contact seal, and it is well-known due to its excellent performance. However, there are many intrinsic drawbacks, such as hysteresis, which need to be solved. This article focused on modeling ...