Computational fluid dynamics software - Kameleon FireEx - KFX

Kameleon FireEx is a leading computational fluid dynamics simulator, a fire simulation software solution. The CFD tools provide advanced solutions to industrial problems related to dispersion of hazardous matter, fire and explosion safety.

Computational fluid dynamics software

Loss of containment in congested areas as a process plant, in populated areas, or in terrain, differs significantly from releases in free surroundings. To capture the important interaction between released fluids and geometrical obstacles as piping, vessels, equipment, structures, buildings, terrain etc., use of computational fluid dynamics software is required.

Kameleon FireEx - KFX® represents the state-of-the-art CFD tools for simulation of dispersion, fires and explosions in congested areas. It offers simulation of conventional jet and pool fires, complex multiphase spray fires with rainout, well-ventilated and under-ventilated fires, LNG leaks with pool spreading, gas dispersion and fires, water-based fire mitigation by deluge, monitors, mist and water curtains in complex systems, optimization of passive fire protection, flare analysis, as well as turbulent flow, gas dispersion and smoke analysis in general, all in congested areas taking all weather effects into account.

In the petroleum industry, KFX computational fluid dynamics software is recognized as the leading industrial CFD simulation technology for flares, gas dispersion, fire development, fire mitigation and explosions for realistic conditions in complex structures. The CFD tool has been used for computational fluid dynamics simulation in numerous industrial analyses worldwide, supporting robust and optimized technical design solutions for more than 25 years.

CFD tool for turbulent flow and combustion

Our competence in computational fluid dynamics simulation has been built up during a period of four decades of focused research, continuous development of fire simulation software and techniques, and consultancy work within the field of turbulent flow and combustion. The CFD fire dynamics simulator was originally developed by ComputIT, NTNU and SINTEF with industry partners.

Fire simulation software development

A key to the successful development of this fire dynamics simulator software is high-level scientific physical modelling combined with close collaboration with industry and understanding of industrial needs through consultancy work in parallel with the CFD tool development.

In 2017 ComputIT was acquired by DNV GL, bringing together teams of experts within physical modelling, computational fluid dynamics simulation, utilization of digital capabilities and specialist industry competence.

Essentials of the CFD tool

  • Three-dimensional transient finite-volume computational fluid dynamics software code that solves the fundamental conservation equations for turbulent flow and combustion using a non-uniform Cartesian grid
  • Developed as a simulator dedicated to gas dispersion, gas explosions, flares and all kind of fires
  • The CFD tool includes an efficient porosity technique for resolution of objects smaller than the grid size
  • Includes explosion capabilities through integration of the Exsim software
  • Includes detailed Lagrangian models for fire mitigation and extinction by water systems, such as water mist, water curtains, deluge, monitors and sprinklers
  • The computational fluid dynamics software is interfaced with the finite element structure response code KFX Usfos for non-linear dynamic structural response analysis
  • Includes powerful CAD and topography import where CAD geometries are converted automatically to solid constructions or surface/volume porosities used by the calculation model in the tool. Electronic maps of terrain, buildings, modules, process plants, etc. are readily handled

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