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Engineering Insights · OpSimTech Desk

Engineering Insights From The OpSimTech Desk

Research notes, deployment case write-ups, method deep-dives, and honest takes on what works and what doesn't — written by the engineers building the digital twins.

⚡ Featured · 12 min read
Method · PINNs Apr 22, 2026 12 min read

When PINNs work, when they don't — a field guide for engineers.

We surveyed 14 deployments across four industries to map exactly where physics-informed networks deliver, where they get out-of-distribution wrong, and where physics-guided surrogates outperform them. The honest answer is more nuanced than the research papers suggest.

AN
Asma Nasir · Head of Method
Case Study · Maritime Mar 28, 2026 6 min read

Inside a 15% fuel-saving WASP retrofit — the rotor activation engine.

How real-time wind data, vessel state, and an aerodynamic surrogate combine to decide rotor activation per leg — and how the activation engine handled a mid-Atlantic storm that violated every assumption in the training set.

— Karim Hadi · Lead Aero
Research · Battery Mar 14, 2026 11 min read

SPH-DEM electrode slurry mixing — physics signature of a dead zone.

A 2-week study of NMC811 slurry in a 1.6 m³ planetary mixer. Particle-scale dead zones that pure CFD missed — and how the twin caught them at line rate, before they reached the coating head.

— Maya Lindqvist · Battery Process Lead
Method · Thermal Feb 28, 2026 8 min read

Thermal-runaway propagation modeling at pack-level — what we got wrong first.

Coupling cell electrochemistry with pack-scale conjugate heat transfer is harder than the textbooks pretend. Here's the iteration we went through to make it pack-level reliable — including the cooling-channel assumption we had to throw out.

— Ana Costa · Thermal Lead
Industry · Aero Feb 14, 2026 7 min read

+7.2% AEP from blade redesign — 4,200 designs in 6 weeks.

How a PINN-derived blade surrogate compressed an 11-month wind-turbine blade design cycle into 6 weeks. The structural-margin constraint we had to add — and what we'd do differently next time.

— Yuki Tanaka · Aero Lead
Regulation · FuelEU Jan 30, 2026 9 min read

FuelEU 2025 compliance for shipowners — what the GHG-intensity rule actually means.

A walkthrough of FuelEU Maritime's GHG-intensity targets, banking mechanisms, and pooling — with worked examples on a 14k TEU container ship. Includes the ROI math for a rotor-sail retrofit pathway.

— Jonas Møller · Compliance
Engineering · Stack Jan 15, 2026 13 min read

How we deploy a PINN as a 3.2 ms REST endpoint on commodity edge hardware.

Distillation, ONNX export, quantization — and why our latency budget is set by the operator's reaction time, not the GPU. Includes benchmarks and the network architecture we settled on after three iterations.

— Reza Khalili · Platform Eng