Research Article
Energy Dissipation Mechanism and Control Model of a Digital Hydraulic Damper
Table 4
Characteristics of sudden extension reflux zone in cross section.
| | Inlet condition | Vortex position | Vortex structure | Reflow zone length |
| | 15 m/s | O1 (0.067D, 0.067D) | Complex structure and intense movement | 0.33D | | O1 (0.18D, 0.16D) | Stable reattachment vortex | 0.94D | | O1 (0.4D, 0.33D) | Stable reattachment vortex | 1.33D | | O1 (0.62D, 0.31D) | Stable reattachment vortex | 1.54D |
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D is the diameter of the damping hole.
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