Every DIU and NSIC hardware problem — counter-UAS interceptors, autonomous surface vessels, energy systems, RF sensors — is a physics problem first. Get the aerodynamics, loads, heat, or electromagnetics wrong and you find out on a flightline or a test range, after you've spent the money. Simulation moves that discovery to a screen, where fixing it is cheap.
DIU's portfolios map cleanly onto a handful of simulation disciplines. Autonomy and counter-UAS lean on computational fluid dynamics for airframe and rotor aero (Ansys Fluent) and structural FEA for airframes and interceptors (Ansys Mechanical). Sensing and comms are high-frequency electromagnetics (Ansys HFSS). Maritime autonomy is hull hydrodynamics (Fluent). Energy and electronics are thermal and reliability problems (Icepak, Sherlock), and electric propulsion is low-frequency EM (Maxwell). Space concepts add mission and orbit modeling (STK), and optical payloads add ray-tracing and stray-light analysis (Zemax, Speos).
We can arrange an Ansys evaluation license plus live engineering support and free learning content through a channel partner — so your team can model the hard physics before the first prototype milestone.
See if you qualify for an Ansys eval The MVP playbook →A five-page CSO solution brief with a real CFD contour or stress plot reads like a mature team. On pitch day, simulation lets you answer 'will it survive the vibration / radiate at range / make it across the strait?' with a curve instead of a promise. And when you sign an OT prototype contract, the success metrics you commit to are ones you've already hit in the model.
Real hardware rarely fails in a single, isolated domain. A high-power radio is an EM problem and a thermal problem; a drone in gusty air is an aero problem and a structural one; a battery pack is chemistry, heat, and stress at once. The teams that get burned on pitch day are the ones who modeled each piece in isolation and never checked the interactions. Co-simulation — HFSS coupled with Icepak for RF electrothermal, or Fluent coupled with Mechanical for fluid-structure interaction — is how you catch the failure that lives in the seams.
NSIC funds hardware at TRL 3 and up. Simulation is one of the fastest, cheapest ways to climb that ladder — validating a concept, then a component, then an integrated system — without a lab full of destroyed prototypes. See what NSIC funds and the counter-UAS simulation playbook for concrete workflows.
Official sources: DIU — Solutions Portfolio · NSIC (nsic.mil). Figures change; confirm on the official page before relying on them.
