iTurbo vs NeuraFOIL

This application performs a Direct Numerical Simulation (DNS) where the Navier-Stokes equations are solved for two dimensional incompressible homogeneous turbulence. These equations are a set of nonlinear partial differential equations. The time stepping is performed with a simple Euler method where the time step is calculated so that the CFL number does not exceeds the given number (should be less than 0.8 otherwise the simulation blows up). The equations are solved in the Fourier space where the calculation of the nonlinear term transforms to a simple multiplication. The main CPU usage is consumed by transforming the vorticity field back and fourth between the Normal space where the time-stepping is performed and the Fourier space where the nonlinear term is calculated.

NeuraFOIL brings AI-assisted airfoil analysis to your hand. Meet the first neural network-powered aerodynamic tool designed for engineers, students, and aerospace enthusiasts who want real insights instantly on their iPhone or iPad. Explore NACA 4-digit airfoils by entering the airfoil code, angle of attack, and Reynolds number. NeuraFOIL instantly visualizes the geometry and predicts pressure coefficient, skin-friction coefficient, lift coefficient, and drag coefficient using an on-device Core ML model trained from OpenFOAM CFD simulations. Full data export to CSV for post-processing in Python, MATLAB, or Excel is available. Designed for students, engineers, makers, and aerodynamic enthusiasts, NeuraFOIL makes it easy to compare airfoil behavior, test design ideas, and build intuition about how geometry and flow conditions affect aerodynamic performance. Predictions run locally on your device, so results are fast and available without an internet connection. NeuraFOIL is ideal for learning, early-stage exploration, and quick aerodynamic comparison. It is not intended to replace validated CFD, wind-tunnel testing, or certified engineering analysis.