sonicFoam - OpenFOAM Solver

Solver: sonicFoam   Description

sonicFoam is a pressure-based solver designed for transient simulations of compressible flow. It handles laminar and turbulent, single-phase flows with temperature and density variations (it solves the energy equation).

The solver uses the PIMPLE (merged PISO-SIMPLE) algorithm for pressure-momentum coupling. This algorithm leverages the strengths of both PISO and SIMPLE methods for pressure-velocity coupling, ensuring robustness in handling transient flows with large time steps. This approach is supplemented by under-relaxation techniques to secure convergence stability. It supports both Multiple Reference Frame (MRF) and porosity modeling and allows easy integration of passive scalar transport equations and source terms.

The dedicated flow regime for this solver is trans-sonic/supersonic flows. It predicts accurately shock waves and heat transfer phenomena. Except for jet engines and propulsion studies, it can be used for explosions and blast wave modeling, choked flows in valves and orifices, heat exchangers, and cooling systems.

Solver: sonicFoam   Features

  • Transient
  • Compressible
  • Single-Phase
  • Transonic Flow
  • Supersonic Flows
  • Pressure-Based Solver
  • Shock Waves Capturing
  • Laminar and Turbulent (RANS, LES, DES)
  • Equation of State Models
  • Rotating Objects:
    • Multiple Reference Frames (MRF)
  • Passive Scalar
  • Porosity Modeling
  • Heat Transfer
  • Heat Source (energy source therm)
  • Source Term (explicit/implicit)
  • PIMPLE Algorithm
  • Solution Limiters:
    • Velocity Damping
    • Temperature Limit

Solver: sonicFoam   Application

Aerospace

  • Jet Engines & Propulsion
  • Analysis of Afterburners and Scramjets
  • Supersonic Flows:
    • Shock Waves and Expansion Waves around Supersonic Aircraft
    • Supersonic Nozzles and Diffusers

Automotive

  • High-speed Vehicles - Race Cars Components

Explosions and Blast Waves

  • Studying the propagation of shock waves in the air or any other medium due to explosions.

Heat transfer

  • Heat Exchanger
  • Cooling Systems

HVAC

  • Venturi Systems or Ejectors
  • Rapid Depressurization
  • Choked Flows in Valves or Orifices

Solver: sonicFoam   Compressible Solvers Comparison

Compressible Solvers In this group, we have included single-phase, pressure and density-based solvers that can handle flows with significant variations in density, mostly applicable for low and high-speed aerodynamics (Ma > 0.3)

Subsonic / Transonic, Ma < 1

  • rhoSimpleFoam steady-state, pressure-based, small density changes
  • rhoPimpleFoam transient, pressure-based, small density changes, DyM

Transonic / Supersonic, Ma > 1

  • Ma - Mach Number
  • DyM - Dynamic Mesh
  • Overset - also known as Chimera Grid (Method)