The hole-pattern damping seal (HPDS) is one of the most typical sealing solutions used in
gas turbines. Structural innovation and geometrical optimization of hole cavity shape of hole …

In noncontact annular labyrinth seals used in turbomachinery, fluid prerotation in the
direction of shaft rotation effectively increases fluid velocity in the circumferential direction …

Reasonable design of the cavity shape of the damping hole effectively reduces the leakage
rate of the hole-pattern damping seal (HPDS). A novel HPDS with dovetail-like diversion …

Purpose The purpose of this paper is to enhance sealing and rotordynamic performance of
hole-pattern damping seal (HPDS) and labyrinth seal (LS) by structural innovation and …

Purpose The purpose of this paper is to improve the seal performance by proper design of
the cavity shape of the damping holes, especially the rotordynamics characteristics of the …

The operating parameters and cavity geometry significantly affect the sealing properties and
rotor stability of the hole-pattern damping seal (HPDS). The three-dimensional numerical …

Annular gas seals are crucial components in turbomachinery applications since they reduce
leakage flow from high-pressure to low-pressure sections. However, the fluid-induced rotor …

In this paper, geometric schemes of hole-pattern damper seal with various hole diameter
and depth were designed for the balance piston in a 14 MW supercritical CO2 turbine. To …

Numerical modeling of internal nozzle flow can be regarded as an essential investigation in
the field of gasoline direct injection system of combustion engines since it is directly …

Two types of liquid hole-pattern seals with axially oblique (A-HPS) or circumferentially
oblique (C-HPS) hole cavities are designed. To evaluate the leakage and rotordynamic …