iTurbo vs Evolara

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.

Evolara lets you shape Earth-like regions, stack forces such as rainfall, mining, trade, and conservation, then run deterministic rule-based simulations with timelines, cause chains, archives, and future comparisons. The app works offline and saves regions, discoveries, simulations, and comparison records locally on device.