Results 81 to 90 of about 16,478 (310)

On Initiation of Stall in Axial Flow Compressors [PDF]

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2017
This Technical Note calls attention to the fact that observed initiation of stall in an axial flow compressor can be explained by the pressure pulses reflecting between the stator and rotor blades. The phenomenon of reflection of pressure pulses between the rotor and stator blades of turbines was first observed in in 1965 and reported in 1966.
openaire   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

Axial-Flow Compressor Performance Prediction in Design and Off-Design Conditions through 1-D and 3-D Modeling and Experimental Study

open access: yesJournal of Applied Fluid Mechanics, 2016
In this study, the main objective is to develop a one dimensional model to predict design and off design performance of an operational axial flow compressor by considering the whole gas turbine assembly.
Ahmad Peyvan, Ali Hajilouy Benisi
doaj  

Method of aerodynamic improvement of axial and centrifugal compressor stages of gas turbine engines

open access: yesАвіаційно-космічна техніка та технологія
The development of approaches to aerodynamic improvement of compressor stages of gas turbine engines based on numerical modeling of three-dimensional turbulent gas flows remains a pressing task, which is of great importance for the design and ...
Natalya Zinevich
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Some Experimental Studies on Airjet and Solid Body Vortex Generators [PDF]

open access: yes, 2002
generators (VGs) in an induction type wind tunnel. While the former comprised a convergent nozzle having an area ratio of 4, the later ones included vane and wedge type devices.
Shobhavathy, MT, Nagpurwala, QH
core  

Effect of Active Flow Control of Endwall Synthetic Jet on the Performance of a Transonic Axial Compressor

open access: yesJournal of Applied Fluid Mechanics, 2021
In order to improve the performance of a high-load transonic axial compressor, this paper proposes a method of applying endwall synthetic jet to the casing for active flow control.
G. Wang, W. Chu, H. Zhang, Z. Guo
doaj  

Experimental investigation of the tip leakage flow in a low-speed multistage axial compressor

open access: yesScience Progress, 2020
Casing pressure measurements and Stereoscopic Particle-Image Velocimetry (SPIV) measurements are used together to characterize the behavior of the rotor tip leakage flow at both the design and near-stall conditions in a low-speed multistage axial ...
Jun Li, Jun Hu, Chenkai Zhang
doaj   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

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