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Keywords: labyrinth seal
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2022, 144(6): 061007.
Paper No: GTP-21-1368
Published Online: March 29, 2022
... damage at the labyrinth fin tip. Moreover, the monitored contact forces are an important indicator of contact-separations (i.e., normal contact force close to zero) between the rotor and stator parts of labyrinth seal during the rubbing process. The heat generation at the rubbing interface is also...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2022, 144(5): 051017.
Paper No: GTP-21-1639
Published Online: February 21, 2022
...Wensong Xue; Zhi Fang; Zhigang Li; Jun Li Annular gas seals used in turbomachinery are key elements to ensure a high machine efficiency, due to their effect on the leakage flow. As the most common type of annular gas seals, labyrinth seal is widely used as end and center balance drum, interstage...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121001.
Paper No: GTP-21-1190
Published Online: October 4, 2021
...Xin Yan; Xinbo Dai The wear behaviors of the rectangular labyrinth seal fin against high-speed rotor were experimentally investigated on the incursion test rig. The material losses, worn geometries, frictional temperature distributions, and contact forces of labyrinth fin in rubbing events were...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111007.
Paper No: GTP-21-1278
Published Online: September 27, 2021
..., and the labyrinth seal is one of the choices. A typical labyrinth seal consists of a surface with teeth and a smooth surface. The teeth are either on the rotor or the stator. To protect the machine, one side (either the teeth or the smooth surface) is made of a material that can be safely sacrificed during a rub...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051003.
Paper No: GTP-20-1180
Published Online: March 11, 2021
... labyrinth seals (i.e., with straight fins and chamfered fins) in rubbing events. With the existing experimental data, FEA methods for contacting simulations and CFD methods for leakage rate and flow pattern predictions are carefully examined. The wear characteristic and leakage performance between labyrinth...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2021, 143(1): 011015.
Paper No: GTP-20-1477
Published Online: January 4, 2021
...Min Zhang; Dara W. Childs With the increasing demand of the oil and gas industry, many pump companies are developing multiphase pumps, which can handle liquid–gas flow directly without separating the liquid from a mixed flow. The see-through labyrinth seal is one of the popular types of noncontact...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2020, 142(11): 111012.
Paper No: GTP-20-1479
Published Online: October 28, 2020
...Min Zhang; Dara W. Childs; Dung L. Tran; Hari Shresth The labyrinth seal is one of the most popular noncontact annular seals used in centrifugal compressors to improve machine efficiency by reducing the secondary flow leakage. Reducing the radial clearance C r can effectively decrease the seal's...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2020, 142(8): 081001.
Paper No: GTP-19-1483
Published Online: July 31, 2020
...Kali Charan Nayak One of the basic assumptions of the traditional labyrinth seal leakage calculation is that rotation has minimal or no effect on seal leakage. With the advancement of gas turbine technology, to achieve high performance, seals are run at tight clearances and very high rotational...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2020, 142(2): 021010.
Paper No: GTP-19-1158
Published Online: January 13, 2020
...Weihang Li; Shaowen Chen; Hongyan Liu; Zhihua Zhou; Songtao Wang Labyrinth seals on both rotor casing and blade tip as an effective method to control the leakage flowrate of the shroud and improve aerodynamic performances in a transonic turbine stage are investigated in this study. Compared...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2014, 136(4): 041901.
Paper No: GTP-13-1371
Published Online: December 10, 2013
.... Therefore, the influence of the bending angle on the Nu on the stator surface is larger than that of the rotor surface (see Figs. 13 and 14 ). Fig. 15 Temperature fields in labyrinth seals (Re = 21,200) Figure 16 shows the turbulence kinetic energy in the labyrinth seals with and without...
Journal Articles
Article Type: Research Papers
J. Eng. Gas Turbines Power. May 2009, 131(3): 031202.
Published Online: February 13, 2009
... rotating cavity preswirl system labyrinth seal performance The gas turbine secondary air system performs a variety of functions that are critical for the safe operation of the engine such as ventilation (mostly cooling but sometimes components are heated), sealing and purging air to disks...