Thermo-mechanical analysis and estimation of turbine blade tip clearance of a small gas turbine engine under transient operating conditions
Sign Up to like & getrecommendations! Published in 2020 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2020.115700
Abstract: Abstract Turbine blade tip clearance is one of the significant factors that influence turbine efficiency, Specific Fuel Consumption (SFC), Exhaust Gas Temperature (EGT), and emissions. Controlling these parameters in a small gas turbine engine (SGT)… read more here.
Keywords: turbine; tip clearance; blade; analysis ... See more keywords
Experimental and numerical local heat transfer study on micro pin fin with tip clearance
Sign Up to like & getrecommendations! Published in 2020 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2020.115756
Abstract: Abstract Fluid flow and local heat transfer in a microchannel with a 150-µm diameter pin fin with a tip clearance were experimentally and numerically studied for three Reynolds numbers in laminar regime. Tip clearances of… read more here.
Keywords: heat; tip clearance; pin fin; heat transfer ... See more keywords
Lock-in phenomenon of tip clearance flow and its influence on aerodynamic damping under specified vibration on an axial transonic compressor rotor
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Journal of Aeronautics"
DOI: 10.1016/j.cja.2021.02.016
Abstract: Abstract In this study, the lock-in phenomenon of Tip Clearance Flow (TCF) instabilities and their relationship to blade vibration are investigated numerically on an axial transonic rotor with a large tip clearance. The capabilities of… read more here.
Keywords: lock; vibration; frequency; lock phenomenon ... See more keywords
Effect of fan and shroud configurations on underhood flow characteristics of an agricultural tractor
Sign Up to like & getrecommendations! Published in 2019 at "Engineering Applications of Computational Fluid Mechanics"
DOI: 10.1080/19942060.2019.1617192
Abstract: ABSTRACT In the current study, effects of two different underhood geometry modifications namely; fan position relative to shroud and fan tip clearance, on airflow through an agricultural tractor engine cooling system are investigated by utilizing… read more here.
Keywords: tip clearance; agricultural tractor; fan shroud; fan ... See more keywords
A Novel Intelligent Fault Diagnosis Approach for Early Cracks of Turbine Blades via Improved Deep Belief Network Using Three-Dimensional Blade Tip Clearance
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3052217
Abstract: Aero-turbines usually work in various non-stationary and harsh operating environments. Its blades easily appear early crack faults in long-time operation, and it is difficult to dig out discriminant features of early crack. To solve these… read more here.
Keywords: blade tip; tip clearance; turbine blades; dimensional blade ... See more keywords
Architecture for Measuring Blade Tip Clearance and Time of Arrival with Multiple Sensors in Airplane Engines
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Aerospace Engineering"
DOI: 10.1155/2018/3756278
Abstract: The performance of airplane engines is influenced by the performance of their bladed disks. The loads those engines are under, both internal and external, are the origin of vibrations than can jeopardize their integrity. Traditionally,… read more here.
Keywords: tip clearance; time arrival; blade tip; clearance time ... See more keywords
Effect of tip clearance flow on pressure oscillation and vortex patterns of a high-speed centrifugal pump
Sign Up to like & getrecommendations! Published in 2023 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"
DOI: 10.1177/09544062231172676
Abstract: In a micro centrifugal pump with tip clearance working at high speed, the pressure fluctuation and complex vortex structures related to the tip leakage flow are conducted. The external characteristics calculated by the numerical simulation… read more here.
Keywords: high speed; flow; pressure; tip clearance ... See more keywords
Numerical investigation of tip clearance size effect on the performance and tip leakage flow in a dual-stage counter-rotating axial compressor
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/0954410016638878
Abstract: Based on a validation of the numerical methods with an experiment, numerical simulations are carried out to study the effect of tip clearance size on the performance and tip leakage flow in a dual-stage counter-rotating… read more here.
Keywords: tip clearance; clearance size; performance;
Effect of circumferential non-uniform tip clearance on the dynamic stall process of a single-stage axial compressor with total pressure distortion
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/09544100211063164
Abstract: In this paper, the single-stage compressor with circumferential non-uniform tip clearance is experimentally investigated under 180° total pressure distortion for the compressor characteristics and the dynamic stall process. In the special structure of the circumferential… read more here.
Keywords: circumferential non; distortion; tip clearance; non uniform ... See more keywords
Some effects of non-axisymmetric tip clearance layout on axial compressor aerodynamics
Sign Up to like & getrecommendations! Published in 2021 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"
DOI: 10.1177/09576509211047002
Abstract: A steady and unsteady numerical research is carried out to explore some effects of a specific non-axisymmetric tip clearance layout on the overall performance and stability of an axial compressor stage. For a 4-stage low-speed… read more here.
Keywords: non axisymmetric; tip clearance; axisymmetric tip; clearance ... See more keywords
Influence of the Tip Clearance on a Compressor Blade Aerodynamic Damping
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Propulsion and Power"
DOI: 10.2514/1.b36121
Abstract: The flutter CFD calculations conducted in industry generally use a single-row, single-passage approach with a minimum of detailing to reduce the computational time as much as possible. The question arises of what level of detailing… read more here.
Keywords: influence tip; tip clearance; aerodynamic damping; clearance ... See more keywords