Kaplan turbines · 20 m head · 6 blades
Kaplan turbine runner 2000 mm, 6 blades (20 m head)
Model designed and computed with the Heliciel software. Design point: 20 m net head, 28.07 m³/s flow, 285.5 rpm (hydraulic power 5507 kW). Specific speed from the turbine selection chart (Ns 530 at 20 m head), diameter and hub from the Kaplan statistics; runner balanced on the head by Heliciel's hydro turbine study.
The pack contains the complete propeller as a full-definition STL with root fillet, STEP surfaces (complete propeller and one blade), the Heliciel .hlc project and the computation records.
Characteristics computed by Heliciel
| Diameter | 2000 mm |
|---|---|
| Number of blades | 6 |
| Hub diameter | 1070 mm |
| Net head | 20 m |
| Flow | 28.07 m³/s |
| Specific speed Ns (turbine selection chart) | 530 |
| Head taken by the runner | 18.16 m |
| Losses in wicket gate, bend and draft tube | 1.84 m |
| Wicket gate | 10 guide vanes, b0 1400 mm |
| Design speed | 286 rpm |
| Fluid speed at design point | 12.52 m/s |
| Axial load | 337640.16 N |
| Torque | 162632.031 N·m |
| Shaft power | 4870805 W |
| Power coefficient Cp | 0.84 |
| Blade shape | classic |
| Angles of attack | smoothed (6° along the whole blade) |
| Blade root | junction shank 349.8 × 223.0 mm |
| Bore | 120.4 mm |
| Hub length | 643 mm |
| Blade thickness | 31.7 mm at the root, 31.7 mm at mid-radius (r = 535 mm), 59.2 mm at the tip |
| Strength at design point | blade root fillet to be sized for strength |
| Direction of rotation | right-hand |
| Files included | STL, STEP, HLC |
| Reference | K-2000-6p-H20 |
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This model was designed and computed with the Heliciel software. For a custom propeller there are two ways: the Heliciel software (Windows: computation, 3D view, STL and STEP exports), and the Heliciel MCP connector, which lets your AI assistant — ChatGPT, Claude, Le Chat and any MCP client — compute a real propeller, with a free 1-day discovery pass.
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