The parallel CFD&CAA simulation code NOISEtte

• Aerodynamics and aeroacoustics simulations
• High-accuracy algorithms for mixed-element unstructured meshes
• Scale-resolving modeling of compressible turbulent flows
• Multilevel MPI+OpenMP+OpenCL heterogeneous parallelization
• Language: C++11, fully-portable (Linux, Windows, whatever)

Mathematical basis

• Compressible Navier–Stokes Equations
• Linearized Euler and Navier–Stokes equations
• Reynolds averaged Navier–Stokes (RANS) equations:
  SA, K-epsilon, K-omega, SST
• Large Eddy Simulation (LES):
  Smagorinsky, S3P, WALE, Sigma, Vreman, Verstappen, ...
• Detached Eddy Simulation (DES) and modifications DDES, IDDES, ...
• SubGrid Scales (SGS): delta LSQ, SLA, Omega, Vol, ...
• Synthetic Turbulence Generator (STG): boundary, volume source
• Immersed boundary condition (IBC)
• Wall functions
• FW/H far field acoustics

Numerical Techniques Implemented

Space Approximation

• Mixed-element unstructured meshes (elements up to 6 faces)
• Edge-based reconstruction schemes (EBR)
• WENO and MUSCL-TVD extensions for discontinuous solutions

• Riemann solvers: Roe, LF, HLLE...
• Low-Mach: Turkel
• Boundary conditions: non-reflecting, solid walls, wall funcs, periodic

Space Approximation

• Explicit Runge – Kutta method (up to 4th order)
• Implicit BDF1, BDF2 – Newton linearization
• Preconditioned BiCGSTAB for block sparse matrices

Primary application area: scale-resolving simulations of turbulent flows