Results 21 to 30 of about 296,793 (263)

Shape Optimization of Labyrinth Seals to Improve Sealing Performance

open access: yesAerospace, 2021
To reduce gas leakage, shape optimization of a straight labyrinth seal was carried out. The six design parameters included seal clearance, fin width, fin height, fin pitch, fin backward, and forward expansion angle. The CFD (Computational Fluid Dynamics)
Yizhen Zhao, Chunhua Wang
doaj   +1 more source

Curvilinear element of the discontinuous Galerkin method designed to capture the labyrinth seal geometry exactly

open access: yesApplied and Computational Mechanics, 2022
The present study applies the discontinuous Galerkin finite element method to a numerical simulation of a compressible fluid flow through a labyrinth seal.
Bublík O., Pecka A., Vimmr J.
doaj   +1 more source

Influence of structure parameters on aeroelastic stability for labyrinth seal based on energy method

open access: yesPropulsion and Power Research, 2018
Numerical analysis of turbomachinery based on energy method is used to predict the aeroelastic stability of the straight-through labyrinth seal by solving aerodynamic work and damping.
Nengmao Wang, Yanrong Wang, Aimei Tian
doaj   +1 more source

Optimizing the Geometric Parameters of a Stepped Labyrinth Seal to Minimize the Discharge Coefficient

open access: yesProcesses, 2022
A series of numerical simulations were performed to study the discharge coefficient based on the geometric parameters of a stepped labyrinth seal that sealed the secondary flow path of a gas turbine.
Ye Hwan Chun, J. Ahn
semanticscholar   +1 more source

Non-metallic brush seals for gas turbine bearings [PDF]

open access: yes, 2004
A non-metallic brush seal has been developed as an oil seal for use in turbomachinary. Traditionally labyrinth-type seals with larger clearances have been used in such applications. Labyrinth seals have higher leakage rates and can undergo excessive wear
Akşit, Mahmut Faruk   +4 more
core   +1 more source

Large-Eddy-Simulation of Labyrinth Seal Flows

open access: yesProceedings of Global Power & Propulsion Society, 2022
The correct prediction of labyrinth seal flows for the aerodynamic, thermodynamic, aeroacoustic, and aeroelastic design of turbomachinery is of utmost importance for industrial purposes.
Lars Wein   +3 more
semanticscholar   +1 more source

Effect of lateral misalignment on performance of a stationary and rotating labyrinth seals

open access: yesAlexandria Engineering Journal, 2019
The reliable prediction of the effect of various labyrinth parameters on leakage rate has not been reported enough and a theoretical prediction of the labyrinth performance for different geometries at different eccentricity ratios is required.
E. Saber, Khaled M. Abdou
doaj   +1 more source

The effect of end windings and the bearing labyrinth seals on stray capacitances and bearing voltage ratio of AC motors

open access: yesIET Electric Power Applications, 2022
The bearing voltage brings premature failure of the motor bearings in the subway traction system, which is related to the stray capacitance of the motor.
Ruifang Liu   +3 more
doaj   +1 more source

Aeroelastic Stability of Labyrinth Seal with Different Structure Parameters

open access: yesMATEC Web of Conferences, 2018
Numerical analysis of turbomachinery based on energy method is used to predict the aeroelastic stability of the straight-through labyrinth seal by solving aerodynamic work and damping.
Nengmao Wang, Yanrong Wang
doaj   +1 more source

Aircraft Turbine Engine Labyrinth Seal CFD Sensitivity Analysis

open access: yesApplied Sciences, 2020
This article presents the labyrinth seal radial clearance influence. A generic labyrinth seal of a turbine aircraft engine was modeled. The target is to compare and analyze the influence of the radial clearance and location of teeth.
Michal Čížek   +2 more
doaj   +1 more source

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