Rand SIM Labs · Beta

Your winning ideas simulated, solved and summarized with Ansys.

The experimental wing of Rand Simulation — a public pipeline that turns community curiosity into real engineering simulations, no gatekeeping, just votes and Ansys.

Fresh from the Labs blog

Real solves of the internet's favorite physics — every post names its own modeling shortcuts.

✦ AIexternal aerodynamics

Why a Flying Ring Goes Farther Than a Flying Disc

SHOWCASE · 8 min read

We ran a generic flying disc (the frisbee-style shape) and a flying ring through an Ansys Fluent aerodynamics sweep at 14 m/s, comparing lift, drag and pitching moment across angle of attack and animating the…

Fluent
✦ AIexplicit dynamics

What a Bike Helmet Does in the Ten Milliseconds That Matter

SHOWCASE · 7 min read

A standard 5 kg test headform is dropped 2.0 m onto pavement twice in Ansys LS-DYNA -- bare and inside a helmet -- and the head's own deceleration is read from the solve. Bare, the head stops in about 1.6 ms…

LS-DYNA
✦ AIdiscrete element method

How Long Until a Wood Chipper Wears Its Teeth Off?

SHOWCASE · 8 min read

A generic 36-inch drum chipper rebuilt in Ansys Rocky (DEM): a 30-inch steel drum carrying fifteen 1-inch carbide teeth spun at 1,600 RPM (76.6 m/s tip speed) while a continuous stream of ~20 mm hardwood chips…

Rocky

Browse all 145 Labs posts

This is the beta ground.

A place to experiment in public — AI-run studies, shared openly for discussion and learning, not as engineering advice.

Join the experiment