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Chinese Journal of Mechanical Engineering

Table 5 Pre-swirl parameters

From: Effects of Four Types of Pre-swirls on the Leakage, Flow Field, and Fluid-Induced Force of the Rotary Straight-through Labyrinth Gas Seal

Pre-swirl

Velocity (m/s)

Angle (°)

Axial

0, 50, 100, 150, 200, 250

90

Radial

100

0, 30, 60, 90

Circumferential positive

100

0, 30, 60, 90

Circumferential negative

100

0, 30, 60, 90

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