Results 231 to 240 of about 1,725,095 (289)

Impact of Dominant Flow Structures on Turbulence Energy in Compressor Corner Separation

AIAA Journal
Three-dimensional unsteady flow structures of corner separation generate complex turbulent characteristics in compressors. To investigate the dominant flow structures of corner separation and their impact on the transport regimes of turbulence energy ...
Yangwei Liu, W. Zhong, Yumeng Tang
semanticscholar   +1 more source

Corner Separation Control Using Sweeping Jet Actuator in a Compressor Cascade

Journal of turbomachinery
In the pursuit of advancing active flow control (AFC) technology, a more promising non-steady actuator known as sweeping jet actuator (SJA) has been equipped on the endwall to manage the corner separation in a compressor cascade, while the steady jet ...
Pengcheng Yang, Shaowen Chen, Guanyu Liu, Chen Xu   +3 more
semanticscholar   +1 more source

The Impact of Bleeding on Compressor Stator Corner Separation

ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 2011
Bleed air from the high pressure compressor has taken up 3–5% in the air system. However, there are not many studies on the compressor performance after bleeding. By analyzing a low-speed single-stage compressor and a transonic single-stage compressor, this paper presents several plans with different bleeding rates on the casing near stator corner, in ...
Bin Zhao, Shaobin Li, Qiushi Li, Sheng Zhou   +3 more
openaire   +1 more source

Intermittent corner separation in a linear compressor cascade

Experiments in Fluids, 2013
To gain a better knowledge of the mechanisms of corner separation and to obtain a database that could be used to calibrate large eddy simulation, a detailed and accurate experimental investigation of the flow field in a linear compressor cascade has been carried out at a Reynolds number of 3.82 × 105 based on the blade chord and the inlet free stream ...
Ma, Wei, Ottavy, Xavier, Lu, Li-Peng, Leboeuf, Francis   +3 more
openaire   +2 more sources

Shock-Induced Corner Separation in Supersonic Duct Flows

2019
The effect of wall separation control on multiple walls was investigated. This study used injection-assisted micro-vortex generators (MVGIs) in a duct flow. Three cases, namely, no control (case A), three-wall control (case B), and four-wall control (case C), were investigated using schlieren imaging, oil flow visualization, and wall pressure ...
Vaisakh, S., Ramprakash, A., Muruganandam, T. M.   +2 more
openaire   +2 more sources

Effect of Boundary Layer Suction on the Corner Separation in a Highly Loaded Axial Compressor Cascade

Journal of turbomachinery, 2020
Control of corner separation in axial compressor blade rows has attracted much interest due to its potential to improve compressor efficiency and the energy utilization in turbomachinery.
T. Liang, Bo Liu, S. Spence
semanticscholar   +1 more source

On laminar separation at a corner point in transonic flow

Journal of Fluid Mechanics, 2000
The separation of the laminar boundary layer from a convex corner on a rigid body contour in transonic flow is studied based on the asymptotic analysis of the Navier–Stokes equations at large values of the Reynolds number. It is shown that the flow in a small vicinity of the separation point is governed, as usual, by strong interaction between the ...
Turkyilmaz, I, RUBAN, Anatoly I
openaire   +4 more sources

Comparative analysis of corner separation controlled by steady jets and oscillating jets on a compressor cascade

The Physics of Fluids
To mitigate corner separation in compressor cascades, this study compares the control effects of single oscillating jets (SOJ), arrayed oscillating jets (AOJ), single steady jets (SSJ), arrayed steady jets (ASJ), and full-span steady jets (FSJ ...
Zonghao Yang, Bowen Liu, Xiaochen Mao, Hejian Wang, Yingchen Jiao   +4 more
semanticscholar   +1 more source

On the separation of a supersonic flow at a sharp corner.

AIAA Journal, 1967
A qualitative comparison is made between the results of an experimental investigation of the separation of a supersonic flow from the corner of a base and a recently presented solution for the separation of a Stokes-type flow in a similar situation. The form of the flows in the two situations is shown to be remarkably similar and the similarity appears
openaire   +1 more source

Corner Separation Dynamics in a Linear Compressor Cascade

Journal of Fluids Engineering, 2016
This paper considers the inherent unsteady behavior of the three-dimensional (3D) separation in the corner region of a subsonic linear compressor cascade equipped of 13 NACA 65-009 profile blades. Detailed experimental measurements were carried out at different sections in spanwise direction achieving, simultaneously, unsteady wall pressure signals on ...
Zambonini, G., Ottavy, X., Kriegseis, J.
openaire   +3 more sources