INCA is a general-purpose multi-physics Computational Fluid Dynamics (CFD) solver for high fidelity Direct Numerical Simulation (DNS) and Large Eddy Simulation (LES). Its main application fields are turbulence research and aerospace engineering.

Adaptive Methods for Complex Geometries

  • Automatic mesh generation and dynamic adaptation (AMR) with pre-implemented or user-defined criteria.
  • Geometry from CAD software or structure dynamics solvers.
  • Conservative cut-cell immersed boundary methods (IBM) with sub-cell resolution for fluid-solid and fluid-fluid interfaces.
  • Coupling of IBM to finite element methods (FEM) and reduced order models (ROM) for fluid structure interaction (FSI).
  • Arbitrary (inertial or non-inertial) frame of reference.

Multi Physics and Weird Materials

  • Compressible and incompressible flows of inert and chemically reacting fluids.
  • Accurate state and transport properties for dense (supercritical) and dilute multi-species mixtures.
  • Multiphase thermodynamics (cavitation, boiling, evaporation, condensation, etc.).
  • Thermochemical non-equilibrium and gas-solid interactions such as ablation.


  • High-order fully-conservative methods for DNS.
  • The 13 most popular functional and structural SGS models for traditional explicit LES.
  • Implicit LES methods based on reinforcement learning of turbulence theory - physical, mathematical and numerical modeling in a unified framework.
  • Wall models facilitate LES of high Reynolds number engineering flows.

High Performance Numerics

  • Massively parallel (MPI and OpenMP), high performance computing on thousands of processors.
  • 19 parallelized solvers for linear and linearizable problems.
  • 13 time-integration schemes, >60 discretization methods for hyperbolic equations, etc.