The rapid growth of small satellites and CubeSat constellations has significantly increased thermal design complexity. Densely packed miniaturized electronics, variable solar irradiation, Earth albedo, and orbital cycling can create critical temperature gradients and structural deformation risks.

This white paper demonstrates how CAD-based multiphysics thermal modeling enables engineers to evaluate design concepts, simulate realistic orbital conditions, reduce reliance on costly preflight testing, and provide continued performance analysis throughout the satellite’s operational lifecycle.

In this white paper, you will learn:

• The key thermal challenges in modern small satellite and CubeSat design
• How to model heat dissipation in densely integrated electronics
• How CAD-centric, near-full-fidelity simulation improves thermal accuracy
• How orbital parameters (solar flux, albedo, Earth IR radiation) impact thermal loads
• How standalone simulation applications support in-orbit operational analysis