Results 21 to 30 of about 8,509 (316)

Numerical investigation on the shock-wave and flow structures in a transonic contra-rotating axial compressor

open access: yesAdvances in Mechanical Engineering, 2017
Numerical simulation has been conducted on a transonic contra-rotating axial compressor to investigate the shock wave and flow characteristics under various operation conditions.
Hanru Liu   +3 more
doaj   +1 more source

A New Method for Rapid Optimization Design of a Subsonic Tandem Blade

open access: yesApplied Sciences, 2020
Tandem blade technology has been developed for years due to its capacity to bear higher aerodynamics than conventional configurations. Even so, there is still the tough problem of how to design tandem blades effectively and further improve blade ...
Yuan Tao, Xianjun Yu, Baojie Liu
doaj   +1 more source

Aerostructural Optimization of a Transonic Compressor Rotor [PDF]

open access: yesJournal of Propulsion and Power, 2006
This paper presents a framework for multi-objective and multidisciplinary design optimization using highfidelity analysis tools. In this framework the aerodynamic performance is evaluated based on a Navier‐Stokes equation solver, and the structure dynamics is computed using commercially available finite element software.
Lian, Yongsheng, Liou, Meng-Sing
openaire   +2 more sources

Numerical Simulation of Transonic Compressors with Different Turbulence Models

open access: yesAerospace, 2023
One of the most commonly used techniques in aerospace engineering is the RANS (Reynolds average Navier–Stokes) approach for calculating the transonic compressor flow field, where the accuracy of the computation is significantly affected by the turbulence
Wenhui Yan   +6 more
doaj   +1 more source

Test Facility for High-Speed Probe Calibration [PDF]

open access: yesEPJ Web of Conferences, 2019
A new test facility was built up as a part of a closed-loop transonic wind tunnel in VZLU´s High-speed Aerodynamics Department. The wind tunnel is driven by a twelve stage radial compressor and Mach and Reynolds numbers can be changed by the compressor ...
Jelínek Tomáš   +3 more
doaj   +1 more source

Accurate 2-D Modelling of Transonic Compressor Cascade Aerodynamics

open access: yesAerospace, 2019
Modern aeronautic fans are characterised by a transonic flow regime near the blade tip. Transonic cascades enable higher pressure ratios by a complex system of shockwaves arising across the blade passage, which has to be correctly reproduced in order to ...
Tommaso Piovesan   +2 more
doaj   +1 more source

Implementation of Three-Dimensional Inverse Design and Its Application to Improve the Compressor Performance

open access: yesEnergies, 2020
The implementation of a three-dimensional viscous inverse design used for an axial compressor is introduced in this paper. The derivation process of the inverse design algorithm is also described in detail. Moreover, an improved blade update method and a
Yu Duan   +4 more
doaj   +1 more source

Using forward end-sweep to reduce transonic cantilevered stator losses to improve compressor performance

open access: yesEngineering Applications of Computational Fluid Mechanics, 2018
The complicated flows in a transonic cantilevered stator would cause serious aerodynamic losses and reducing these losses would contribute much to improving the overall aerodynamic performance of a compressor.
Hanan Lu, Qiushi Li, Tianyu Pan
doaj   +1 more source

The Pre-Stall Behavior of a 4-Stage Transonic Compressor and Stall Monitoring Based on Artificial Neural Networks

open access: yesInternational Journal of Rotating Machinery, 2004
Current research concerned with the aerodynamic instability of compressors aims at an extension of the operating range of the compressor towards decreased massflow. In practice, a safety margin is maintained between operating point and stability limit to
Frank-Oliver Methling   +2 more
doaj   +1 more source

Experimental Research on Noise Reduction for Continuous Transonic Wind Tunnel Loop

open access: yesXibei Gongye Daxue Xuebao, 2020
The noise level of wind tunnel test section is respected as one of the most important performance specifications to represent the flow field quality, especially for large scale wind tunnel. According to the acoustic experimental research conducted in the

doaj   +1 more source

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