Implicit Design, AI & Next Gen Design Tools: Inside nTop’s Bold New Design Frontier

Additive Snack · 10 Jun 2025 · 1h 00m · Episode 13

AI in practice: 2 real uses of AI described

What this episode covers

Brad Rothenberg, CEO and founder of nTop (formerly nTopology), discusses the evolution of his company from a tool for additive manufacturing component design to a platform for implicit modeling and system-level engineering. He explains how nTop’s parametric approach helps aerospace companies like Siemens Energy explore design trade spaces to reduce risk in conservative industries, particularly in thermal management and heat exchanger design. Rothenberg also details nTop’s recent integration of AI and its native fluid solver, nTop Fluids, to accelerate physics simulations and lower the barrier to entry for engineers transitioning from traditional CAD.

AI in practice

Where this conversation describes AI being used to build or deliver a product. Part of the AI in practice tracker.

DesignnTop Fluids

nTop Fluids uses a lattice Boltzmann solver to evaluate heat exchanger performance without traditional meshing, removing the bottleneck of generating and solving complex CFD meshes for thousands of design iterations.

“with end top fluids, Mainly right now for internal flow for heat exchangers primarily. We've seen this just big bottleneck whirl, just meshing the heat exchangers really hard and solving the CFT to calculate the pressure drop is really hard. And so on top fluids, kind of, it solves that because it's a lattice Boltzman solver, which doesn't require a traditional conformal mesh.”

Brad Rothenberg · Hear it at 38:32

DesignLLMs (Claude, OpenAI, Google)

nTop explores integrating Large Language Models to assist engineers in writing the code and algorithms for parametric models, lowering the barrier to entry by automating the setup of design experiments and Python integration.

“we're seeing some, some interesting potential in integrating LLMs into EndTop to basically lower the barrier to entry to building these models. So you can basically be like, hey, actually, help me parameterize a 2 panel lambda wing, an end top, and the LM could help you round a rise there.”

Brad Rothenberg · Hear it at 44:24

Mentioned

Companies
nTop, nTopology, Siemens Energy, Luminary, Intax Solutions, NVIDIA
Products
nTop Fluids
Tools
Star CCM+, Fluent, Modulus, AutoCAD, AutoLISP

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