Experimental and Numerical Investigations into the Effects of Rim Seal Structure on Endwall Film Cooling and Flow Field Characteristics [PDF]
Energies, 2023 During the practical operation of gas turbines, relatively cooled air from the compressor and the rim seal is applied in order to prevent mainstream ingestion into the space between the rotor and stator disc cavities, which can prolong the service life ...
Zhenping Feng +2 more
exaly +4 more sources
Harmonisation of Coolant Flow Pattern with Wake of Stator Vane to Improve Sealing Effectiveness Using a Wave-Shaped Rim Seal [PDF]
Energies, 2019 The rim seal of the gas turbine is intended to protect the material of the turbine disk from hot combustion gases. The study of the rim seal structure is important to minimise the coolant flow and maximise the sealing effect. In this paper, a wave-shaped
Seungjin Lee +2 more
exaly +4 more sources
Effect of Various Coolant Mass Flow Rates on Sealing Effectiveness of Turbine Blade Rim Seal at First Stage Gas Turbine Experimental Facility [PDF]
Energies, 2020 The appropriate coolant mass flow of turbine blade rim seal has become an important issue as turbine blades are exposed to increasingly higher thermal load owing to increased turbine inlet temperature.
Hyung Hee Cho +2 more
exaly +4 more sources
Unsteady Numerical Investigation on the Sealing Effectiveness and Flow Field in Different Rim Seal Geometries [PDF]
Aerospace, 2022 A rim seal is often used to prevent the ingress of high-temperature gas into the turbine disk cavity and protect the turbine disk from damage. Based on the overlapping rim seal (Seal-A), this paper proposes two more composite sealing structures (Seal-B ...
Qing-Cai Zhang +2 more
exaly +4 more sources
Unsteady Flow Structures within a Turbine Rim Seal Cavity in the Presence of Purge Flow—An Experimental and Computational Unsteady Aerodynamics Investigation [PDF]
Aerospace, 2019 Flow within the space between the rotor and stator of a turbine disk, and an area referred to as the rim seal cavity, develops azimuthal velocity component from the rotor disk.
Jason Town +2 more
exaly +4 more sources
Investigations of the leakage characteristic and the sealing effectiveness on turbine bite rim seals
Journal of Thermal Science and Technology, 2018 In order to meet the needs of designing for high performance secondary air system in the turbine, a new turbine bite engineering rim seal of type-A and the related test rig were designed and set up.
Weilin DONG, Suofang WANG, Pengfei LI
doaj +3 more sources
Enhancing Labral Healing in Arthroscopic Hip Surgery: The Marrow Venting Technique [PDF]
Arthroscopy TechniquesThe significance of addressing labral tears cannot be overstated given that the labrum plays a crucial role in preventing or mitigating the onset of osteoarthritis.
Ady H. Kahana-Rojkind, M.D. +5 more
doaj +2 more sources
The Beveled Rim Technique for Labral Reconstruction [PDF]
Arthroscopy TechniquesArthroscopic trimming of the acetabular rim in labral reconstruction is used to create a suitable bony surface with adequate blood flow, thereby promoting the biological conditions necessary for the healing of the labrum.
Ady H. Kahana-Rojkind, M.D. +5 more
doaj +2 more sources
Three dimensional analysis on the deformation of the master cast during maxillary complete denture fabrication [PDF]
Scientific ReportsThis study aimed to assess the changes in maxillary master casts that occur during complete denture fabrication, focusing on a compression molded denture. Digital merging techniques were used to measure the changes in 12 maxillary master casts at various
Junghyun Nam +4 more
doaj +2 more sources
Impact of Purge Injection on Rim Seal Performance
Applied SciencesOne of the most critical challenges in gas turbine design is preventing the ingestion of hot mainstream gases into the disk space between the stator and rotor disks.
Matteo Caciolli +4 more
doaj +3 more sources