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Numerical study on the leakage characteristics of a stepped labyrinth seal with mixed honeycomb cell diameters
As the performance improvement of gas turbines becomes marginal, it is required to develop a seal geometry that can reduce unwanted leakage more...
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Numerical Investigation on Leakage Characteristics of a Novel Honeycomb Seal with Wall Holes
Honeycomb seals are a critical component to reduce leakage flow and improve system stability for turbomachines. In this work, a novel...
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Numerical investigations into the rubbing wear behavior of honeycomb seal
The rubbing wear behavior of the honeycomb land against labyrinth fin was investigated with finite-element-analysis method at a range of incursion...
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Enhanced High-Temperature YSZ-polyester Abradable Honeycomb Seal Structures
The abradable coatings had significantly enhanced turbomachinery performance by acting as a sacrificial seal between rotating blades and stationary...
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A study on the rotational effect of a stepped labyrinth seal according to the casing type
This paper presents the leakage characteristics of stepped labyrinth seals, considering the impact of rotation in the circumferential direction. Two...
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Mechanical Properties and Optimization Analysis on Battery Box with Honeycomb Sandwich Composite Structure
A honeycomb sandwich battery box composed of high-strength steel outer layer, sandwich aluminum alloy honeycomb and inner layer is proposed. Firstly,...
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Influence of operating parameters and cavity geometry on rotor dynamic characteristics of hole-pattern dam** seal with dovetail-like diversion grooves
The operating parameters and cavity geometry significantly affect the sealing properties and rotor stability of the hole-pattern dam** seal (HPDS)....
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Effects of geometric parameters of a staggered labyrinth seal on leakage flow
Staggered labyrinth seals are used in gas turbines for cooling turbine blades. In this study, numerical analyses were performed to evaluate the...
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Sound Transmission Loss and Compression Properties of Sandwich Panels with Milli-perforated Honeycomb Core
In this study, an impedance tube test was conducted to investigate low frequency sound transmission loss (STL) of a sandwich panel with...
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Stability of the Structure and Properties of PKH13M2-BN Composite Seal Material for Steam Turbines Under Long-Term Thermal Exposure
The article presents a study into the effect of long-term thermal exposure on the structure and properties of the PKh13M2-BN composite material,...
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Research on Structure Bonding Technology of Honeycomb Sandwich Product with Trapezoidal Cross-Section
Bonding technology, as one of the three aircraft manufacturing connection technologies, has been widely used in advanced aircraft. Foreign aircraft...
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A novel leakage behavior characterization model of hole pattern seal and its mechanism analysis
This paper aims to guide the parameter design of the hole cavity of the hole-pattern clearance seal (HPCS) to enhance sealing performance. Based on...
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Dimensional analysis of the working condition dependence on the leakage performance of a hole diaphragm labyrinth seal
Labyrinth seal (LS) is widely used to reduce the leakage of working media. A relatively new kind of labyrinth seal, the hole diaphragm labyrinth seal...
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Annular seal rotordynamic stability enhancement with circumferential spiral flow control using helical deflectors
Rotordynamic instability problem caused by seal force widely exists in turbo-machines. The fluid-induced force in the seal is determined by the...
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Effects of Sealing Flow Supply Configuration with Holes on Sealing Effectiveness of Turbine Rim Seal
This paper proposes a new-designed rim seal configuration with sealing holes based on the conventional radial rim seal, and presents a numerical...
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Design of an expeller seal to reduce leakage in a stuffing box
In this study, a design of a coupled seal has been analyzed by combining a helical-grooved seal and expeller seal in a limited area within a stuffing...
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Rotordynamic characteristics of a novel pocket damper seal with self-regulated injection
The conventional fully partitioned pocket damper seal (FPDS) was improved by introducing several nozzles on the first seal tooth, which generates a...
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Electrochemical Dissolution Behavior of Haynes 214 Honeycomb Structure in NaNO3 Solutions for Low Current Density Electrochemical Machining
High current density electrochemical machining (ECM) and high temperature corrosion behavior of nickel-based alloys have been well researched, but...
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Mechanical and Microstructural Properties of Brazed Honeycomb Liner Material Haynes 214
Abradable honeycombHoneycomb sealing systems are widely used in turbines to improve efficiency and thus reduce carbon dioxide emissions. The...
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Aerodynamic and Numerical Studies of the Flow in the Relief Surface Seals
In turbomachines, a significant influence on efficiency is represented by the leaks in the labyrinth seals (end diaphragm, peripheral ones above the...