Crewed Reentry Vehicle. Capsule and trunk with solar array and fins

Aerospace SpacecraftMulti-Body Assembly
Crewed Reentry Vehicle — GeometryAI validation

As reusable spacecraft advance and commercial spaceflight expands, reentry vehicles are becoming an increasingly important focus for aerodynamic design. CFD helps engineers predict the forces and intense heating that vehicles experience during reentry, which requires a mesh that captures both the overall shape and key surface features. This model combines a smooth, curved crew capsule with a trunk made of long, flat panels, fins and a solar array, plus smaller details such as access panels, thruster ports and attachment fittings. GeometryAI converts this complex assembly into a watertight, simulation-ready surface mesh that preserves both its major shapes and its fine details.

Overview

From CAD Assembly to Surface Mesh

This section gives an overview of the complete model, comparing the GeometryAI surface mesh side by side with the original geometry.

Three-quarter view

The mesh covers the whole vehicle, from the capsule nose to the trunk, its fins and the solar array.

Three-quarter view of the capsule and trunk geometry
Geometry
Three-quarter view of the capsule and trunk surface mesh
Mesh

Side view

Side-on, the curved capsule sits ahead of the trunk, with its fins and the solar array.

Side view of the capsule and trunk geometry
Geometry
Side view of the capsule and trunk surface mesh
Mesh

Aft view

From behind, the open end of the trunk shows its inner wall, the fins and the solar array wrapped around it.

Aft view of the trunk, fins and solar array
Geometry
Surface mesh of the trunk, fins and solar array seen from behind
Mesh
Geometry defeaturing

Bolt Heads on an Access Panel

GAI allows users to defeature geometric details that are not relevant to the flowfield through a parameter called Geometry Accuracy. When set to 20 mm, GeometryAI blends the access panel into a smooth bump and removes its bolt heads. When using a finer value of 1 mm, all features are preserved.

Access panel on the capsule with eight bolt heads
Geometry
Surface mesh with a 20 mm geometry accuracy, where the panel is a smooth bump without bolt heads
Mesh, 20 mm geometry accuracy
Surface mesh with a 1 mm geometry accuracy, showing the panel edge and all eight bolt heads
Mesh, 1 mm geometry accuracy
Surface details

Panels, Ports and Fittings

Small features sit on top of large, smooth surfaces. The whole assembly is meshed with one set of global settings, with no local refinements on the small parts.

Capsule details

Access panels and thruster ports on the capsule's outer surface.

Access panels and thruster ports on the capsule
Geometry
Surface mesh of the access panels and thruster ports on the capsule
Mesh

Capsule-to-trunk interface

A fitting at the joint between the capsule and the trunk, with its thin rods.

Fitting at the joint between the capsule and trunk
Geometry
Surface mesh of the fitting at the joint between the capsule and trunk
Mesh

Trunk panels

The trunk's long flat panels, their seams and the fittings along the edge.

Trunk panels and fittings
Geometry
Surface mesh of the trunk panels and fittings
Mesh