.... , Bochon , K. , Dykas , S. , and Marugi , K. , 2018 , “ Optimization of the Straight-Through Labyrinth Seal With a Smooth Land ,” ASME J. Eng. Gas Turbines Power , 140 ( 12 ), p. 122503 . 10.1115/1.4040767 [5] Xu , J. M. , 2016 , “ Effects of Operating Damage...

...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...

...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...

..., 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...

... 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...

...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...

...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...

...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...

...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...

.... 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...

... 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...