49.049.0250.0
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Interactive 3D model of Scramjet Combustor with Regenerative Cooling

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Scramjet Combustor with Regenerative Cooling

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Bounding box
49.0 × 49.0 × 250.0 mm
Engine
Precision B-rep
Parameters
11
Published
September 23, 2026

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The prompt

Create a detailed parametric 3D CAD model of a scramjet combustor with regenerative cooling. Dimensions: - Combustor length: 250 mm - Internal diameter: 8.95 mm - Wall thickness: 20 mm - Cooling tube radius: 9 mm Design a hollow cylindrical combustor with a continuous internal hot-gas passage. Embed multiple evenly spaced helical cooling channels inside the combustor wall. The channels must follow the outer circumference and run along the full combustor length. Add coolant inlet and outlet manifolds connected to the cooling channels. Keep all cooling channels enclosed inside the wall and separated from the hot-gas passage. Make the geometry clean, fully parametric, manufacturable, and suitable for CFD, conjugate heat transfer, and FEA. Include inlet, outlet, hot-gas passage, cooling channels, coolant inlet and coolant outlet.

Parameters

NameValueRange
Combustor Length250 mm60 – 600
Hot-Gas Passage Diameter8.95 mm3 – 60
Wall Thickness20 mm4 – 60
Cooling Channel Radius9 mm1 – 25
Number of Cooling Channels4 count3 – 8
Helix Pitch60 mm25 – 300
End Wall Thickness8 mm3 – 40
Manifold Width8 mm3 – 40
Manifold Inner Inset (from channel)0 mm0 – 6
Manifold Outer Inset (from channel)0 mm0 – 6
Coolant Port Diameter4 mm1 – 12

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

Scramjet Combustor with Regenerative Cooling - Free CAD Model (STEP, STL) | TextoCAD