Olelo Foil - NACA Airfoil Sim
Hi HN! A while back, I started exploring ways to make aerodynamic simulation more interactive and visual for the web. I wanted something that felt immediate—intuitive enough for students, fast enough for hobbyists, and hackable enough for engineers. That’s how Olelo Foil was born. Foil is a browser-based airfoil simulator written in JavaScript using Three.js and WebGL. It lets you interactively explore how airfoils behave under different conditions, all rendered in real time. Right now, it uses simplified fluid models, but I’m working toward integrating Navier-Stokes for more accurate…
Olelo Foil - NACA Airfoil Sim launched on May 20, 2025 with 36 votes, #669 of 7,905 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Olelo Foil is a browser-based airfoil simulator that runs in JavaScript using Three.js and WebGL. It allows users to interactively explore how airfoils perform under different conditions with real-time visualization. The tool is designed for students, hobbyists, and engineers, currently using simplified fluid models with plans to integrate Navier-Stokes equations for greater accuracy. It operates entirely in the browser without requiring specialized software.
written from the facts on this page · September 2026
From the sources
Interactive NACA airfoil generator and visualizer. Enter NACA codes to generate airfoil shapes and customize parameters like camber and extrusion depth.
NACA airfoils are mathematical representations of airfoil shapes developed by the National Advisory Committee for Aeronautics (NACA). These airfoils are widely used in aerodynamics for designing wings, blades, and other aerodynamic surfaces. You can learn more about airfoils here . Check out my main site ʻŌlelo Honua ! Email any questions or comments at [email protected]from foil.olelohonua.com
In the maker’s words, at launch
Hi HN! A while back, I started exploring ways to make aerodynamic simulation more interactive and visual for the web. I wanted something that felt immediate—intuitive enough for students, fast enough for hobbyists, and hackable enough for engineers. That’s how Olelo Foil was born. Foil is a browser-based airfoil…
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