Results 231 to 240 of about 39,762 (260)

A Prediction Model for Corner Separation/Stall in Axial Compressors

Volume 7: Turbomachinery, Parts A, B, and C, 2010
Endwall corner stall can cause significant aerodynamic blockage and losses production. Hence, pre-prediction of it during the preliminary processes of compressors is important. However, Lieblein’s diffusion factor often fails near the endwall region for the strong three-dimensionality flow effects.
Xianjun Yu, Baojie Liu
openaire   +1 more source

Asymptotic theory of laminar flow separation at a corner

Fluid Dynamics, 1991
The development of the reverse flow structure in the neighborhood of a corner in a viscous incompressible laminar flow at high Reynolds numbers is investigated numerically. It is found that as the angle of inclination increases the internal structure of the reverse flow zone becomes more complex as a result of secondary separation.
openaire   +1 more source

Control of the Corner Separation in a Linear Cascade by Trailing Gaps

Volume 2A: Turbomachinery, 2017
Hub corner is the high-loss area in the blade passages of turbo machinery. It is well known that the flow separation and vortex development in this area affects directly not only the energy losses and efficiency, but also the stability of axial compressors.
Wenfeng Zhao, Bin Jiang, Qun Zheng
openaire   +1 more source

A method for separating adhesive vehicles based on corner detection

2015 International Conference on Information and Communications Technologies (ICT 2015), 2015
In order to solve the problem of adhesive vehicles in video surveillance, this paper presents a simple segmentation method based on corner detection. Firstly, Shi-Tomasi corner detection is used to detect the corners of the vehicle area. Secondly, the corners are separated by K-means clustering method, and then the nearest corner from the line ...
null Chen Jun Yan, null Lim Keng Pang, null Liu Ying, null Li Na   +3 more
openaire   +1 more source

Steady flow separation along a straight streamwise corner

Applied Scientific Research, 1976
This note considers the steady incompressible flow of a laminar or turbulent boundary layer along a straight streamwise corner, formed by two flat plates intersecting each other at an arbitrary included angle. It is assumed that the undisturbed freestream is parallel or roughly parallel to the cornerline and that the intersecting corner-walls are ...
openaire   +1 more source

Vortical characteristics of the corner separation flow in a high-speed compressor cascade

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2022
Yanhui Wu
exaly  

Separation of Laminar Boundary Layers at Swept Corners

Proceedings of the 32nd International Symposium on Shock Waves (ISSW32 2019), 2019
R. R. Pulimidi, F. K. Lu
openaire   +1 more source

The Unsteady Topology of Corner Separations

Journal of Turbomachinery, 2022
James V Taylor, Xavier Ottavy
exaly  

Performance enhancing for a highly loaded tandem cascade by endwall incoming vortex–corner separation interaction

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021
Cheng Song, Xi Gao, Zhiyuan Cao
exaly  

Effect of a blade end slot on supersonic compressor cascade hub-corner separation

Aerospace Science and Technology, 2021
Ling Zhou, Jianci Ma
exaly