Simulation

Simulation for Air Force SBIR: de-risking the physics

Updated July 29, 2026 · Free educational guide · verify details at the official sources below

AFWERX and SpaceWERX fund hardware whose success depends on physics — hypersonic aerothermal, propulsion combustion, launch loads, satellite thermal, antenna and radar RF, orbital coverage. Engineering simulation (CFD, FEA, high-frequency EM, mission modeling) lets a small team prove margins and cut costly test iterations before and during a Phase II, and it produces the evidence reviewers want to see.

Why the Air and Space Force fund physics

Look at what AFWERX and SpaceWERX actually buy: hypersonic vehicles, rocket engines, satellites, radars, electronic-warfare payloads, in-space servicing craft. Every one of them lives or dies on physics that is expensive and dangerous to test. That's precisely where simulation earns its keep.

The four physics that dominate

Aero and thermal. At high speed the air is both a force and a heat source. CFD (Ansys Fluent, CFX) predicts lift, drag, shock structure, and heating; coupling it to structural thermal in Ansys Mechanical sizes the thermal-protection system.

Structural. Airframes and satellites have to survive flight loads, landing, and — for spacecraft — the violent ride to orbit. FEA covers stress, buckling, modal, random vibration, and fatigue.

Electromagnetics. Antennas, radars, and RF payloads need full-wave EM (Ansys HFSS) to predict gain and coupling on the real platform, often chained into Icepak for the thermal side of high-power transmit modules.

Mission and orbit. For space, STK proves the constellation or sensor actually closes the mission — coverage, revisit, contact — which is exactly what a concept-of-operations needs to back up.

Why it matters more for small teams

A prime can afford to build three prototypes and test its way to an answer. A four-person startup on a $75K Phase I cannot. Simulation is the great equalizer here: it lets a small team explore a design space, kill bad configurations on a laptop, and walk into a review with margins already understood. The teams that use it well spend their scarce hardware dollars on the one test that actually needs physical proof, instead of discovering a thermal or vibration problem the expensive way. That efficiency is often the difference between a Phase II that transitions and one that stalls.

If your project needs simulation

We can help arrange an Ansys evaluation license, live engineering support, and free learning content through a channel partner so a small team can stand up this analysis fast.

See if you qualify for an Ansys eval The MVP playbook →

How it strengthens the proposal itself

Beyond de-risking the build, simulation is persuasion. A Phase I feasibility argument backed by a credible analysis reads very differently from one backed by hand-waving. In Phase II and at STRATFI scale, validated models support qualification and requirements verification — the mission-assurance evidence a program office needs before it will transition your capability. For the applications by physics domain, browse the simulation tiles on this site, and for the funding side start with how to apply to Open Topic.

This is informational only. Evaluation licenses and startup programs are Ansys programs offered at Ansys and partner discretion; you're free to use any partner.

Official sources: AFWERX SBIR/STTR · SpaceWERX Get Funded. Figures change; confirm on the official page before relying on them.

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